diff --git a/keyboards/yandrstudio/boy40ble/boy40ble.c b/keyboards/yandrstudio/boy40ble/boy40ble.c
new file mode 100644
index 000000000000..b4bd89447994
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/boy40ble.c
@@ -0,0 +1,50 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+
+#ifdef RGB_MATRIX_ENABLE
+led_config_t g_led_config = {
+    {
+        { NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED },  \
+        { NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED },  \
+        { NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED },  \
+        { NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED },  \
+    },
+    {
+      // LED Index to Physical Position
+      {0,0}
+    },
+    {
+      // LED Index to Flag
+      4
+    }
+};
+
+
+#endif
+
+#ifdef RGB_DISABLE_WHEN_USB_SUSPENDED
+void suspend_power_down_kb(void) {
+    rgb_matrix_set_suspend_state(true);
+    suspend_power_down_user();
+}
+
+void suspend_wakeup_init_kb(void) {
+    rgb_matrix_set_suspend_state(false);
+    suspend_wakeup_init_user();
+}
+#endif
diff --git a/keyboards/yandrstudio/boy40ble/boy40ble.h b/keyboards/yandrstudio/boy40ble/boy40ble.h
new file mode 100644
index 000000000000..7e7f678cae8c
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/boy40ble.h
@@ -0,0 +1,30 @@
+/* Copyright 2020 zvecr <git@zvecr.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "quantum.h"
+
+#define LAYOUT( \
+	K000, K001, K002, K003, K004, K005, K006, K007, K008, K009, K010, K011, \
+	K100, K101, K102, K103, K104, K105, K106, K107, K108, K109,       K111, \
+	K200,       K202, K203, K204, K205, K206, K207, K208, K209, K210, K211, \
+	K300, K301, K302,       K304,             K307,       K309, K310, K311  \
+) { \
+	{ K000,  K001,  K002,  K003,  K004,  K005,  K006,  K007,  K008,  K009,  K010,  K011 }, \
+	{ K100,  K101,  K102,  K103,  K104,  K105,  K106,  K107,  K108,  K109,  KC_NO, K111 }, \
+	{ K200,  KC_NO, K202,  K203,  K204,  K205,  K206,  K207,  K208,  K209,  K210,  K211 }, \
+	{ K300,  K301,  K302,  KC_NO, K304,  KC_NO, KC_NO, K307,  KC_NO, K309,  K310,  K311 }  \
+}
diff --git a/keyboards/yandrstudio/boy40ble/config.h b/keyboards/yandrstudio/boy40ble/config.h
new file mode 100644
index 000000000000..18c398ce2a86
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/config.h
@@ -0,0 +1,53 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xAA96
+#define PRODUCT_ID      0xAAA6
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    JasonRen biu
+#define PRODUCT         boy40ble
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 12
+
+//                        0    1    2    3   4   5   6   7   8   9   10  11  12  13
+#define MATRIX_COL_PINS { A4,  B15, B14, B13,B12,C13, B9, B8, B5,B4,  B3, A15}
+#define MATRIX_ROW_PINS { B10, A8, A5, C14}
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION ROW2COL
+
+
+// enable the nkro when using the VIA.
+#define FORCE_NKRO
+
+// fix VIA RGB_light
+#define VIA_HAS_BROKEN_KEYCODES
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+
+
+
diff --git a/keyboards/yandrstudio/boy40ble/f401/board.h b/keyboards/yandrstudio/boy40ble/f401/board.h
new file mode 100644
index 000000000000..d6432824e162
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/board.h
@@ -0,0 +1,25 @@
+/* Copyright 2020 Nick Brassel (tzarc)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include_next "board.h"
+
+
+#undef STM32_HSECLK
+#define STM32_HSECLK 8000000
+
+
+#define BOARD_YANDR_BIU_F401
diff --git a/keyboards/yandrstudio/boy40ble/f401/chconf.h b/keyboards/yandrstudio/boy40ble/f401/chconf.h
new file mode 100644
index 000000000000..4820db8dcbeb
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/chconf.h
@@ -0,0 +1,34 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define CH_CFG_ST_FREQUENCY 10000
+
+#define CH_CFG_FACTORY_OBJECTS_REGISTRY TRUE
+
+#define CH_CFG_FACTORY_GENERIC_BUFFERS TRUE
+
+#define CH_CFG_FACTORY_SEMAPHORES TRUE
+
+#define CH_CFG_FACTORY_MAILBOXES TRUE
+
+#define CH_CFG_FACTORY_OBJ_FIFOS TRUE
+
+#define CH_CFG_FACTORY_PIPES TRUE
+
+#include_next <chconf.h>
+
diff --git a/keyboards/yandrstudio/boy40ble/f401/config.h b/keyboards/yandrstudio/boy40ble/f401/config.h
new file mode 100644
index 000000000000..bbf426b84bcf
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/config.h
@@ -0,0 +1,61 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "config_common.h"
+
+
+/* RGN Matrix */
+#ifdef RGB_MATRIX_ENABLE
+
+#    define RGB_DI_PIN A7
+#    define RGBLED_NUM 1
+#    define DRIVER_LED_TOTAL RGBLED_NUM
+
+#define WS2812_PWM_DRIVER PWMD3  // default: PWMD2
+#define WS2812_PWM_CHANNEL 2  // default: 2
+#define WS2812_PWM_PAL_MODE 2  // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 2
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM2  // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_DMA_CHANNEL 5  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+
+
+#    define RGB_MATRIX_MAXIMUM_BRIGHTNESS 180
+#    define RGBLIGHT_VAL_STEP 18
+#    define RGB_DISABLE_WHEN_USB_SUSPENDED true
+#    define RGB_MATRIX_CENTER { 32, 96 }
+#    define RGB_MATRIX_KEYPRESSES
+#    define RGB_MATRIX_FRAMEBUFFER_EFFECTS
+
+#endif
+
+
+#ifdef RGBLIGHT_ENABLE
+
+#    define RGB_DI_PIN A7
+#    define RGBLED_NUM 1
+#    define DRIVER_LED_TOTAL RGBLED_NUM
+
+
+#define WS2812_PWM_DRIVER PWMD3  // default: PWMD2
+#define WS2812_PWM_CHANNEL 2  // default: 2
+#define WS2812_PWM_PAL_MODE 2  // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 2
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM2  // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_DMA_CHANNEL 5  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+
+#endif
+
+
+
diff --git a/keyboards/yandrstudio/boy40ble/f401/eep/eeprom_stm32.c b/keyboards/yandrstudio/boy40ble/f401/eep/eeprom_stm32.c
new file mode 100644
index 000000000000..12071a21291e
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/eep/eeprom_stm32.c
@@ -0,0 +1,217 @@
+/*
+ * This software is experimental and a work in progress.
+ * Under no circumstances should these files be used in relation to any critical system(s).
+ * Use of these files is at your own risk.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * This files are free to use from http://engsta.com/stm32-flash-memory-eeprom-emulator/ by
+ * Artur F.
+ *
+ * Modifications for QMK and STM32F303 by Yiancar
+ * update for STM32F4 support and the the flashing algorithm by yulei
+ * Adjust the file structure to custom EEPROM_DRIVER by jiaxin96 for support stm32f401cc
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "eeprom_stm32_custom.h"
+#include "eeprom_driver.h"
+/*****************************************************************************
+ * Allows to use the internal flash to store non volatile data. To initialize
+ * the functionality use the EEPROM_Init() function. Be sure that by reprogramming
+ * of the controller just affected pages will be deleted. In other case the non
+ * volatile data will be lost.
+ ******************************************************************************/
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Functions -----------------------------------------------------------------*/
+
+#define IS_VALID_ADDRESS(x) ((x) < FEE_MAX_BYTES)
+
+uint8_t DataBuf[FEE_MAX_BYTES];
+static void EEPROM_Backup(void);
+static FLASH_Status EEPROM_Restore(void);
+static uint32_t EEPROM_FindValidAddress(void);
+static void EEPROM_Clear(void);
+
+/*****************************************************************************
+ *  Unlock the FLASH programming and initialized the DataBuf
+ ******************************************************************************/
+uint16_t EEPROM_Init(void) {
+    // unlock flash
+    FLASH_Unlock();
+
+    // initialize DataBuf
+    EEPROM_Backup();
+
+    // Clear Flags
+    // FLASH_ClearFlag(FLASH_SR_EOP|FLASH_SR_PGERR|FLASH_SR_WRPERR);
+
+    return FEE_DENSITY_BYTES;
+}
+void eeprom_driver_init(void) {
+    EEPROM_Init();
+}
+
+/*****************************************************************************
+ *  Erase the whole reserved Flash Space used for user Data
+ ******************************************************************************/
+void EEPROM_Erase(void) {
+    // erase all flash pages
+    EEPROM_Clear();
+
+    // reset the content of the buffer
+    memset(&DataBuf[0], FEE_EMPTY_BYTE, sizeof(DataBuf));
+}
+void eeprom_driver_erase(void) {
+    EEPROM_Erase();
+}
+/*****************************************************************************
+ * Write data with its eeprom address to flash if there has empty words,
+ * otherwise backup the current valid data, erase all flash pages,
+ * and finally restore the valid data.
+ *******************************************************************************/
+uint16_t EEPROM_WriteDataByte(uint16_t Address, uint8_t DataByte) {
+    FLASH_Status FlashStatus = FLASH_COMPLETE;
+
+    uint32_t addr;
+    // exit if not a valid address
+    if (!IS_VALID_ADDRESS(Address)) {
+        return 0;
+    }
+
+// we are sure the address will not be out of bound
+#pragma GCC diagnostic ignored "-Warray-bounds"
+    // same value, do not need program
+    if (DataBuf[Address] == DataByte) {
+        return FlashStatus;
+    }
+
+    // find the address can be written
+    addr = EEPROM_FindValidAddress();
+    DataBuf[Address] = DataByte;
+#pragma GCC diagnostic pop
+    if (addr == FEE_EMPTY_VALUE) {
+        // EEPROM is full, need to erase and reprogramming
+        EEPROM_Clear();
+        EEPROM_Restore();
+    } else {
+        FLASH_ProgramHalfWord(FEE_ADDR_ADDRESS(addr), Address);
+        FLASH_ProgramHalfWord(FEE_DATA_ADDRESS(addr), DataByte);
+    }
+
+    return FlashStatus;
+}
+/*****************************************************************************
+ *  Read once data byte from a specified address.
+ *******************************************************************************/
+uint8_t EEPROM_ReadDataByte(uint16_t Address) {
+    if (!IS_VALID_ADDRESS(Address)) {
+        return FEE_EMPTY_BYTE;
+    }
+
+    // Get Byte from caches
+    return DataBuf[Address];
+}
+
+/*****************************************************************************
+ *  helper functions
+ *******************************************************************************/
+// backup the current data
+void EEPROM_Backup(void)
+{
+    uint32_t begin = FEE_PAGE_BASE_ADDRESS;
+    uint32_t end = FEE_PAGE_END_ADDRESS;
+    memset(&DataBuf[0], FEE_EMPTY_BYTE, sizeof(DataBuf));
+    while( begin < end) {
+        uint16_t addr = *(__IO uint16_t*)(FEE_ADDR_ADDRESS(begin));
+        if (IS_VALID_ADDRESS(addr)) {
+            DataBuf[addr] = *(__IO uint16_t*)(FEE_DATA_ADDRESS(begin));
+        } else if( addr == FEE_EMPTY_WORD) {
+            uint16_t data = *(__IO uint16_t*)(FEE_DATA_ADDRESS(begin));
+            if (data == FEE_EMPTY_WORD) {
+                // we reached the end of valid data
+                break;
+            }
+        }
+        begin += 4;
+    }
+}
+// restore data from DataBuf
+FLASH_Status EEPROM_Restore(void) {
+    uint32_t cur = FEE_PAGE_BASE_ADDRESS;
+    for (uint8_t i = 0; i < FEE_MAX_BYTES; i++) {
+        if (DataBuf[i] != FEE_EMPTY_BYTE) {
+            FLASH_ProgramHalfWord(FEE_ADDR_ADDRESS(cur), i);
+            FLASH_ProgramHalfWord(FEE_DATA_ADDRESS(cur), DataBuf[i]);
+            cur += 4;
+        }
+    }
+    return FLASH_COMPLETE;
+}
+// find an empty place for programming
+uint32_t EEPROM_FindValidAddress(void) {
+    uint32_t begin = FEE_PAGE_BASE_ADDRESS;
+    uint32_t end = FEE_PAGE_END_ADDRESS;
+    while( begin < end) {
+        uint32_t data = *(__IO uint32_t*)(begin);
+        if (data == FEE_EMPTY_VALUE) {
+            return begin;
+        }
+        begin += 4;
+    }
+    return FEE_EMPTY_VALUE;
+}
+
+void EEPROM_Clear(void)
+{
+#if defined(EEPROM_EMU_STM32F401xC)
+    FLASH_ErasePage(FEE_SECTOR_ID);
+#else
+    int page_num = 0;
+
+    // delete all pages from specified start page to the last page
+    do {
+        FLASH_ErasePage(FEE_PAGE_BASE_ADDRESS + (page_num * FEE_PAGE_SIZE));
+        page_num++;
+    } while (page_num < FEE_DENSITY_PAGES);
+#endif
+}
+/*****************************************************************************
+ *  Wrap library in AVR style functions.
+ *******************************************************************************/
+uint8_t eeprom_read_byte_f4(const uint8_t *Address) {
+    const uint16_t p = (const uint32_t)Address;
+    return EEPROM_ReadDataByte(p);
+}
+
+void eeprom_write_byte_f4(uint8_t *Address, uint8_t Value) {
+    uint16_t p = (uint32_t)Address;
+    EEPROM_WriteDataByte(p, Value);
+}
+
+
+void eeprom_read_block(void *buf, const void *addr, size_t len) {
+    const uint8_t *p    = (const uint8_t *)addr;
+    uint8_t *      dest = (uint8_t *)buf;
+    while (len--) {
+        *dest++ = eeprom_read_byte_f4(p++);
+    }
+}
+
+void eeprom_write_block(const void *buf, void *addr, size_t len) {
+    uint8_t *      p   = (uint8_t *)addr;
+    const uint8_t *src = (const uint8_t *)buf;
+    while (len--) {
+        eeprom_write_byte_f4(p++, *src++);
+    }
+}
+
+
diff --git a/keyboards/yandrstudio/boy40ble/f401/eep/eeprom_stm32_custom.h b/keyboards/yandrstudio/boy40ble/f401/eep/eeprom_stm32_custom.h
new file mode 100644
index 000000000000..096842aaaf16
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/eep/eeprom_stm32_custom.h
@@ -0,0 +1,104 @@
+/*
+ * This software is experimental and a work in progress.
+ * Under no circumstances should these files be used in relation to any critical system(s).
+ * Use of these files is at your own risk.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * This files are free to use from http://engsta.com/stm32-flash-memory-eeprom-emulator/ by
+ * Artur F.
+ *
+ * Modifications for QMK and STM32F303 by Yiancar
+ *
+ * This library assumes 8-bit data locations. To add a new MCU, please provide the flash
+ * page size and the total flash size in Kb. The number of available pages must be a multiple
+ * of 2. Only half of the pages account for the total EEPROM size.
+ * This library also assumes that the pages are not used by the firmware.
+ * Adjust the file structure to custom EEPROM_DRIVER by jiaxin96 for support stm32f401cc
+ */
+
+#pragma once
+
+#include <ch.h>
+#include <hal.h>
+#include "flash_stm32.h"
+
+// HACK ALERT. This definition may not match your processor
+// To Do. Work out correct value for EEPROM_PAGE_SIZE on the STM32F103CT6 etc
+#if defined(EEPROM_EMU_STM32F303xC)
+#    define MCU_STM32F303CC
+#elif defined(EEPROM_EMU_STM32F103xB)
+#    define MCU_STM32F103RB
+#elif defined(EEPROM_EMU_STM32F072xB)
+#    define MCU_STM32F072CB
+#elif defined(EEPROM_EMU_STM32F042x6)
+#    define MCU_STM32F042K6
+#elif defined(EEPROM_EMU_STM32F401xC)
+#    define MCU_STM32F401xC
+#else
+#    error "not implemented."
+#endif
+
+
+
+
+
+#ifndef EEPROM_PAGE_SIZE
+#    if defined(MCU_STM32F103RB) || defined(MCU_STM32F042K6)
+#        define FEE_PAGE_SIZE (uint16_t)0x400  // Page size = 1KByte
+#        define FEE_DENSITY_PAGES 4            // How many pages are used
+#    elif defined(MCU_STM32F103ZE) || defined(MCU_STM32F103RE) || defined(MCU_STM32F103RD) || defined(MCU_STM32F303CC) || defined(MCU_STM32F072CB)
+#        define FEE_PAGE_SIZE (uint16_t)0x800  // Page size = 2KByte
+#        define FEE_DENSITY_PAGES 4            // How many pages are used
+#    elif defined(MCU_STM32F401xC)
+#        define FEE_PAGE_SIZE (uint32_t)0x20000  // Page size = 128KByte
+#        define FEE_DENSITY_PAGES 1              // How many pages are used
+#        define FEE_SECTOR_ID 5                  // sector id of the flash
+#    else
+#        error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
+#    endif
+#endif
+
+#ifndef EEPROM_START_ADDRESS
+#    if defined(MCU_STM32F103RB) || defined(MCU_STM32F072CB)
+#        define FEE_MCU_FLASH_SIZE 128  // Size in Kb
+#    elif defined(MCU_STM32F042K6)
+#        define FEE_MCU_FLASH_SIZE 32  // Size in Kb
+#    elif defined(MCU_STM32F103ZE) || defined(MCU_STM32F103RE)
+#        define FEE_MCU_FLASH_SIZE 512  // Size in Kb
+#    elif defined(MCU_STM32F103RD)
+#        define FEE_MCU_FLASH_SIZE 384  // Size in Kb
+#    elif defined(MCU_STM32F303CC)
+#        define FEE_MCU_FLASH_SIZE 256  // Size in Kb
+#    elif defined(MCU_STM32F401xC)
+#        define FEE_MCU_FLASH_SIZE 256  // Size in Kb
+#    else
+#        error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
+#    endif
+#endif
+
+// DONT CHANGE
+// Choose location for the first EEPROM Page address on the top of flash
+// #define FEE_PAGE_BASE_ADDRESS ((uint32_t)(0x8000000 + FEE_MCU_FLASH_SIZE * 1024 - FEE_DENSITY_PAGES * FEE_PAGE_SIZE))
+// #define FEE_DENSITY_BYTES ((FEE_PAGE_SIZE / 2) * FEE_DENSITY_PAGES - 1)
+// #define FEE_LAST_PAGE_ADDRESS (FEE_PAGE_BASE_ADDRESS + (FEE_PAGE_SIZE * FEE_DENSITY_PAGES))
+// #define FEE_EMPTY_WORD ((uint16_t)0xFFFF)
+// #define FEE_ADDR_OFFSET(Address) (Address * 2)  // 1Byte per Word will be saved to preserve Flash
+
+#define FEE_PAGE_END_ADDRESS ((uint32_t)(0x08000000 + FEE_MCU_FLASH_SIZE * 1024))
+#define FEE_PAGE_BASE_ADDRESS ((uint32_t)((FEE_PAGE_END_ADDRESS) - FEE_DENSITY_PAGES * FEE_PAGE_SIZE))
+#define FEE_DENSITY_BYTES ((FEE_PAGE_SIZE / 4) * FEE_DENSITY_PAGES - 1) // 4 Bytes for address, value pair
+//#define FEE_LAST_PAGE_ADDRESS (FEE_PAGE_BASE_ADDRESS + (FEE_PAGE_SIZE * FEE_DENSITY_PAGES))
+#define FEE_EMPTY_BYTE ((uint8_t)0xFF)
+#define FEE_EMPTY_WORD ((uint16_t)0xFFFF)
+#define FEE_EMPTY_VALUE ((uint32_t)0xFFFFFFFF)
+//#define FEE_ADDR_OFFSET(Address) (Address * 2)      // 1 Byte per Word will be saved to preserve Flash
+#define FEE_DATA_ADDRESS(Address) ((Address)+2)     // flash address of the eeprom data
+#define FEE_ADDR_ADDRESS(Address) (Address)         // flash address of the eeprom address
+#define FEE_MAX_BYTES ((FEE_DENSITY_BYTES+1) > 1024 ? 1024 : (FEE_DENSITY_BYTES+1)) // eeprom size
+
diff --git a/keyboards/yandrstudio/boy40ble/f401/eep/flash_stm32.c b/keyboards/yandrstudio/boy40ble/f401/eep/flash_stm32.c
new file mode 100644
index 000000000000..c3f1937c5258
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/eep/flash_stm32.c
@@ -0,0 +1,223 @@
+/*
+ * This software is experimental and a work in progress.
+ * Under no circumstances should these files be used in relation to any critical system(s).
+ * Use of these files is at your own risk.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and
+ * https://github.com/leaflabs/libmaple
+ *
+ * Modifications for QMK and STM32F303 by Yiancar
+ * Adjust the file structure to custom EEPROM_DRIVER by jiaxin96 for support stm32f401cc
+ */
+
+#if defined(EEPROM_EMU_STM32F303xC)
+#    define STM32F303xC
+#    include "stm32f3xx.h"
+#elif defined(EEPROM_EMU_STM32F103xB)
+#    define STM32F103xB
+#    include "stm32f1xx.h"
+#elif defined(EEPROM_EMU_STM32F072xB)
+#    define STM32F072xB
+#    include "stm32f0xx.h"
+#elif defined(EEPROM_EMU_STM32F042x6)
+#    define STM32F042x6
+#    include "stm32f0xx.h"
+#elif defined(EEPROM_EMU_STM32F401xC)
+#    define STM32F401xC
+#    include "stm32f4xx.h"
+#else
+#    error "not implemented."
+#endif
+
+
+#include "flash_stm32.h"
+
+#if defined(EEPROM_EMU_STM32F103xB)
+#    define FLASH_SR_WRPERR FLASH_SR_WRPRTERR
+#endif
+
+#if defined(EEPROM_EMU_STM32F401xC)
+#    define FLASH_PSIZE_HFWORD FLASH_CR_PSIZE_0
+#    define FLASH_PSIZE_WORD FLASH_CR_PSIZE_1
+#    define FLASH_CR_SNB_POS 3
+/* the flash key was not defined in the CMSIS used by current chibios */
+#define FLASH_KEY1                          0x45670123U
+#define FLASH_KEY2                          0xCDEF89ABU
+#    define FLASH_SR_FLAGS (FLASH_SR_PGAERR|FLASH_SR_PGPERR|FLASH_SR_PGSERR|FLASH_SR_WRPERR)
+#else
+#    define FLASH_SR_FLAGS (FLASH_SR_EOP | FLASH_SR_PGERR | FLASH_SR_WRPERR)
+#endif
+
+/* Delay definition */
+#define EraseTimeout ((uint32_t)0x00000FFF)
+#define ProgramTimeout ((uint32_t)0x0000001F)
+
+#define ASSERT(exp) (void)((0))
+
+/**
+ * @brief  Inserts a time delay.
+ * @param  None
+ * @retval None
+ */
+static void delay(void) {
+    __IO uint32_t i = 0;
+    for (i = 0xFF; i != 0; i--) {
+    }
+}
+
+/**
+ * @brief  Returns the FLASH Status.
+ * @param  None
+ * @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG,
+ *   FLASH_ERROR_WRP or FLASH_COMPLETE
+ */
+FLASH_Status FLASH_GetStatus(void) {
+    if ((FLASH->SR & FLASH_SR_BSY) == FLASH_SR_BSY) return FLASH_BUSY;
+
+#if defined(EEPROM_EMU_STM32F401xC)
+    if ((FLASH->SR & (FLASH_SR_PGSERR | FLASH_SR_PGPERR | FLASH_SR_PGAERR))) return FLASH_ERROR_PG;
+    if ((FLASH->SR & FLASH_SR_WRPERR)) return FLASH_ERROR_WRP;
+#else
+    if ((FLASH->SR & FLASH_SR_PGERR) != 0) return FLASH_ERROR_PG;
+    if ((FLASH->SR & FLASH_SR_WRPERR) != 0) return FLASH_ERROR_WRP;
+    if ((FLASH->SR & FLASH_OBR_OPTERR) != 0) return FLASH_ERROR_OPT;
+#endif
+
+    return FLASH_COMPLETE;
+}
+
+/**
+ * @brief  Waits for a Flash operation to complete or a TIMEOUT to occur.
+ * @param  Timeout: FLASH progamming Timeout
+ * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
+ *   FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
+ */
+FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout) {
+    FLASH_Status status;
+
+    /* Check for the Flash Status */
+    status = FLASH_GetStatus();
+    /* Wait for a Flash operation to complete or a TIMEOUT to occur */
+    while ((status == FLASH_BUSY) && (Timeout != 0x00)) {
+        delay();
+        status = FLASH_GetStatus();
+        Timeout--;
+    }
+    if (Timeout == 0) status = FLASH_TIMEOUT;
+    /* Return the operation status */
+    return status;
+}
+
+/**
+ * @brief  Erases a specified FLASH page.
+ * @param  Page_Address: The page address or sector to be erased.
+ * @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG,
+ *   FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
+ */
+FLASH_Status FLASH_ErasePage(uint32_t Page) {
+    FLASH_Status status = FLASH_COMPLETE;
+    /* Check the parameters */
+    //ASSERT(IS_FLASH_ADDRESS(Page_Address));
+    /* Wait for last operation to be completed */
+    status = FLASH_WaitForLastOperation(EraseTimeout);
+
+    if (status == FLASH_COMPLETE) {
+        /* if the previous operation is completed, proceed to erase the page */
+#if defined(EEPROM_EMU_STM32F401xC)
+        FLASH->CR &= ~FLASH_CR_SNB;
+        FLASH->CR |= FLASH_CR_SER | (Page << FLASH_CR_SNB_POS);
+#else
+        FLASH->CR |= FLASH_CR_PER;
+        FLASH->AR = Page;
+#endif
+        FLASH->CR |= FLASH_CR_STRT;
+
+        /* Wait for last operation to be completed */
+        status = FLASH_WaitForLastOperation(EraseTimeout);
+        /* clear the SER or PER Bit */
+#if defined(EEPROM_EMU_STM32F401xC)
+        FLASH->CR &= ~(FLASH_CR_SER | FLASH_CR_SNB);
+#else
+        FLASH->CR &= ~FLASH_CR_PER;
+#endif
+        FLASH_ClearFlag(FLASH_SR_FLAGS);
+    }
+    /* Return the Erase Status */
+    return status;
+}
+
+/**
+ * @brief  Programs a half word at a specified address.
+ * @param  Address: specifies the address to be programmed.
+ * @param  Data: specifies the data to be programmed.
+ * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
+ *   FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
+ */
+FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data) {
+    FLASH_Status status = FLASH_BAD_ADDRESS;
+    if ((Address % sizeof(uint16_t) != 0 ) || !IS_FLASH_ADDRESS(Address)) {
+        return status;
+    }
+
+    /* Wait for last operation to be completed */
+    status = FLASH_WaitForLastOperation(ProgramTimeout);
+    if (status == FLASH_COMPLETE) {
+        /* if the previous operation is completed, proceed to program the new data */
+#if defined(EEPROM_EMU_STM32F401xC)
+        FLASH->CR &= ~FLASH_CR_PSIZE;
+        FLASH->CR |= FLASH_PSIZE_HFWORD;
+#endif
+        FLASH->CR |= FLASH_CR_PG;
+        *(__IO uint16_t*)Address = Data;
+        /* Wait for last operation to be completed */
+        status = FLASH_WaitForLastOperation(ProgramTimeout);
+        if (status != FLASH_TIMEOUT) {
+            /* if the program operation is completed, disable the PG Bit */
+            FLASH->CR &= ~FLASH_CR_PG;
+        }
+        FLASH_ClearFlag(FLASH_SR_FLAGS);
+    }
+    return status;
+}
+
+/**
+ * @brief  Unlocks the FLASH Program Erase Controller.
+ * @param  None
+ * @retval None
+ */
+void FLASH_Unlock(void) {
+    /* Authorize the FPEC Access */
+    FLASH->KEYR = FLASH_KEY1;
+    FLASH->KEYR = FLASH_KEY2;
+}
+
+/**
+ * @brief  Locks the FLASH Program Erase Controller.
+ * @param  None
+ * @retval None
+ */
+void FLASH_Lock(void) {
+    /* Set the Lock Bit to lock the FPEC and the FCR */
+    FLASH->CR |= FLASH_CR_LOCK;
+}
+
+/**
+ * @brief  Clears the FLASH's pending flags.
+ * @param  FLASH_FLAG: specifies the FLASH flags to clear.
+ *   This parameter can be any combination of the following values:
+ *     @arg FLASH_FLAG_PGERR: FLASH Programming error flag flag
+ *     @arg FLASH_FLAG_WRPERR: FLASH Write protected error flag
+ *     @arg FLASH_FLAG_EOP: FLASH End of Programming flag
+ * @retval None
+ */
+void FLASH_ClearFlag(uint32_t FLASH_FLAG) {
+    /* Clear the flags */
+    FLASH->SR |= FLASH_FLAG;
+}
diff --git a/keyboards/yandrstudio/boy40ble/f401/halconf.h b/keyboards/yandrstudio/boy40ble/f401/halconf.h
new file mode 100644
index 000000000000..cf6a19cb5a43
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/halconf.h
@@ -0,0 +1,43 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#include_next <halconf.h>
+
+#pragma once
+#include_next <halconf.h>
+
+#undef HAL_USE_SERIAL
+#define HAL_USE_SERIAL TRUE
+
+#undef HAL_USE_PWM
+#define HAL_USE_PWM    TRUE
+
+#undef HAL_USE_ADC
+#define HAL_USE_ADC    TRUE
+
+
+#undef  SERIAL_USB_BUFFERS_SIZE
+#define SERIAL_USB_BUFFERS_SIZE 256
+
+#undef  SERIAL_BUFFERS_SIZE
+#define SERIAL_BUFFERS_SIZE     128
+
+#undef  SPI_USE_WAIT
+#define SPI_USE_WAIT TRUE
+
+#undef  SPI_SELECT_MODE
+#define SPI_SELECT_MODE SPI_SELECT_MODE_PAD
diff --git a/keyboards/yandrstudio/boy40ble/f401/matrix.c b/keyboards/yandrstudio/boy40ble/f401/matrix.c
new file mode 100644
index 000000000000..d7040e338fbe
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/matrix.c
@@ -0,0 +1,236 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "util.h"
+#include "matrix.h"
+#include "debounce.h"
+#include "quantum.h"
+
+#ifdef DIRECT_PINS
+static pin_t direct_pins[MATRIX_ROWS][MATRIX_COLS] = DIRECT_PINS;
+#elif (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
+static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+#endif
+
+/* matrix state(1:on, 0:off) */
+extern matrix_row_t raw_matrix[MATRIX_ROWS];  // raw values
+extern matrix_row_t matrix[MATRIX_ROWS];      // debounced values
+
+static inline void setPinOutput_writeLow(pin_t pin) {
+    ATOMIC_BLOCK_FORCEON {
+        setPinOutput(pin);
+        writePinLow(pin);
+    }
+}
+
+static inline void setPinInputHigh_atomic(pin_t pin) {
+    ATOMIC_BLOCK_FORCEON { setPinInputHigh(pin); }
+}
+
+// matrix code
+
+#ifdef DIRECT_PINS
+
+static void init_pins(void) {
+    for (int row = 0; row < MATRIX_ROWS; row++) {
+        for (int col = 0; col < MATRIX_COLS; col++) {
+            pin_t pin = direct_pins[row][col];
+            if (pin != NO_PIN) {
+                setPinInputHigh(pin);
+            }
+        }
+    }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
+    // Start with a clear matrix row
+    matrix_row_t current_row_value = 0;
+
+    for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+        pin_t pin = direct_pins[current_row][col_index];
+        if (pin != NO_PIN) {
+            current_row_value |= readPin(pin) ? 0 : (MATRIX_ROW_SHIFTER << col_index);
+        }
+    }
+
+    // If the row has changed, store the row and return the changed flag.
+    if (current_matrix[current_row] != current_row_value) {
+        current_matrix[current_row] = current_row_value;
+        return true;
+    }
+    return false;
+}
+
+#elif defined(DIODE_DIRECTION)
+#    if (DIODE_DIRECTION == COL2ROW)
+
+static void select_col(uint8_t col) { palSetLine(col_pins[col]); }
+
+static void unselect_col(uint8_t col) { palClearLine(col_pins[col]); }
+
+static void unselect_rows(void) {
+    for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        palSetLineMode(row_pins[x], PAL_MODE_INPUT_PULLDOWN);
+    }
+}
+
+static void init_pins(void) {
+    unselect_rows();
+    for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+        palSetLineMode(col_pins[x], PAL_MODE_OUTPUT_PUSHPULL);
+    }
+    for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+        palClearLine(col_pins[x]);
+    }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) {
+    bool matrix_changed = false;
+
+    // Select col
+    select_col(current_col);
+    matrix_output_select_delay();
+
+    // For each row...
+    for (uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value    = current_matrix[row_index];
+        matrix_row_t current_row_value = last_row_value;
+
+        // Check row pin state
+        if (readPin(row_pins[row_index]) == 1) {
+            // Pin HI, set col bit
+            current_row_value |= (MATRIX_ROW_SHIFTER << current_col);
+        } else {
+            // Pin LO, clear col bit
+            current_row_value &= ~(MATRIX_ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_row_value)) {
+            matrix_changed |= true;
+            current_matrix[row_index] = current_row_value;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+    if (current_col + 1 < MATRIX_COLS) {
+        matrix_output_unselect_delay();  // wait for col signal to go HIGH
+    }
+
+    return matrix_changed;
+}
+
+#    elif (DIODE_DIRECTION == ROW2COL)
+
+static void select_row(uint8_t row) { palSetLine(row_pins[row]); }
+
+static void unselect_row(uint8_t row) { palClearLine(row_pins[row]); }
+
+static void unselect_cols(void) {
+    for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+        palSetLineMode(col_pins[x], PAL_MODE_INPUT_PULLDOWN);
+    }
+}
+
+static void init_pins(void) {
+    unselect_cols();
+    for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        palSetLineMode(row_pins[x], PAL_MODE_OUTPUT_PUSHPULL);
+    }
+    for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        palClearLine(row_pins[x]);
+    }
+}
+
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
+    // Start with a clear matrix row
+    matrix_row_t current_row_value = 0;
+
+    // Select row
+    select_row(current_row);
+    matrix_output_select_delay();
+
+    // For each col...
+    for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+        // Select the col pin to read (active low)
+        uint8_t pin_state = readPin(col_pins[col_index]);
+
+        // Populate the matrix row with the state of the col pin
+        current_row_value |= pin_state ? (MATRIX_ROW_SHIFTER << col_index) : 0;
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+    if (current_row + 1 < MATRIX_ROWS) {
+        matrix_output_unselect_delay();  // wait for row signal to go HIGH
+    }
+
+    // If the row has changed, store the row and return the changed flag.
+    if (current_matrix[current_row] != current_row_value) {
+        current_matrix[current_row] = current_row_value;
+        return true;
+    }
+    return false;
+}
+
+#    else
+#        error DIODE_DIRECTION must be one of COL2ROW or ROW2COL!
+#    endif
+#else
+#    error DIODE_DIRECTION is not defined!
+#endif
+
+void matrix_init(void) {
+    // initialize key pins
+    init_pins();
+
+    // initialize matrix state: all keys off
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        raw_matrix[i] = 0;
+        matrix[i]     = 0;
+    }
+
+    debounce_init(MATRIX_ROWS);
+
+    matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void) {
+    bool changed = false;
+
+#if defined(DIRECT_PINS) || (DIODE_DIRECTION == COL2ROW)
+    // Set col, read rows
+    for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+        changed |= read_rows_on_col(raw_matrix, current_col);
+    }
+#elif (DIODE_DIRECTION == ROW2COL)
+    // Set row, read cols
+    for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+        changed |= read_cols_on_row(raw_matrix, current_row);
+    }
+#endif
+
+    debounce(raw_matrix, matrix, MATRIX_ROWS, changed);
+
+    matrix_scan_quantum();
+    return (uint8_t)changed;
+}
diff --git a/keyboards/yandrstudio/boy40ble/f401/mcuconf.h b/keyboards/yandrstudio/boy40ble/f401/mcuconf.h
new file mode 100644
index 000000000000..6f3d7c97c20a
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/mcuconf.h
@@ -0,0 +1,89 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+
+#undef STM32_SERIAL_USE_USART1
+#define STM32_SERIAL_USE_USART1 TRUE
+
+
+#undef  STM32_ADC_USE_ADC1
+#define STM32_ADC_USE_ADC1                  TRUE
+
+#undef STM32_PWM_USE_TIM3
+#define STM32_PWM_USE_TIM3 TRUE
+
+#undef STM32_NO_INIT
+#undef STM32_HSI_ENABLED
+#undef STM32_LSI_ENABLED
+#undef STM32_HSE_ENABLED
+#undef STM32_LSE_ENABLED
+#undef STM32_CLOCK48_REQUIRED
+#undef STM32_SW
+#undef STM32_PLLSRC
+#undef STM32_PLLM_VALUE
+#undef STM32_PLLN_VALUE
+#undef STM32_PLLP_VALUE
+#undef STM32_PLLQ_VALUE
+#undef STM32_HPRE
+#undef STM32_PPRE1
+#undef STM32_PPRE2
+#undef STM32_RTCSEL
+#undef STM32_RTCPRE_VALUE
+#undef STM32_MCO1SEL
+#undef STM32_MCO1PRE
+#undef STM32_MCO2SEL
+#undef STM32_MCO2PRE
+#undef STM32_I2SSRC
+#undef STM32_PLLI2SN_VALUE
+#undef STM32_PLLI2SR_VALUE
+#undef STM32_PVD_ENABLE
+#undef STM32_PLS
+#undef STM32_BKPRAM_ENABLE
+
+#define STM32_NO_INIT                       FALSE
+#define STM32_HSI_ENABLED                   TRUE
+#define STM32_LSI_ENABLED                   TRUE
+#define STM32_HSE_ENABLED                   TRUE
+#define STM32_LSE_ENABLED                   FALSE
+#define STM32_CLOCK48_REQUIRED              TRUE
+#define STM32_SW                            STM32_SW_PLL
+#define STM32_PLLSRC                        STM32_PLLSRC_HSE
+#define STM32_PLLM_VALUE                    8
+#define STM32_PLLN_VALUE                    192
+#define STM32_PLLP_VALUE                    4
+#define STM32_PLLQ_VALUE                    4
+#define STM32_HPRE                          STM32_HPRE_DIV1
+#define STM32_PPRE1                         STM32_PPRE1_DIV4
+#define STM32_PPRE2                         STM32_PPRE2_DIV2
+#define STM32_RTCSEL                        STM32_RTCSEL_LSI
+#define STM32_RTCPRE_VALUE                  8
+#define STM32_MCO1SEL                       STM32_MCO1SEL_HSI
+#define STM32_MCO1PRE                       STM32_MCO1PRE_DIV1
+#define STM32_MCO2SEL                       STM32_MCO2SEL_SYSCLK
+#define STM32_MCO2PRE                       STM32_MCO2PRE_DIV5
+#define STM32_I2SSRC                        STM32_I2SSRC_CKIN
+#define STM32_PLLI2SN_VALUE                 192
+#define STM32_PLLI2SR_VALUE                 5
+#define STM32_PVD_ENABLE                    FALSE
+#define STM32_PLS                           STM32_PLS_LEV0
+#define STM32_BKPRAM_ENABLE                 FALSE
+
+
+
diff --git a/keyboards/yandrstudio/boy40ble/f401/rules.mk b/keyboards/yandrstudio/boy40ble/f401/rules.mk
new file mode 100644
index 000000000000..1f96d65a537c
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/f401/rules.mk
@@ -0,0 +1,24 @@
+# MCU name
+MCU = STM32F401
+
+# Address of the bootloader in system memory
+STM32_BOOTLOADER_ADDRESS = 0x1FFF0000
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
+# # project specific file
+CUSTOM_MATRIX = lite    # for using the A9 pin as matrix io
+QUANTUM_SRC += matrix.c
+
+
+# RGB_MATRIX_ENABLE = yes
+# RGB_MATRIX_DRIVER = WS2812
+RGBLIGHT_ENABLE = yes
+RGBLIGHT_DRIVER = WS2812
+WS2812_DRIVER = pwm
+
+EEPROM_DRIVER = custom
+SRC += eep/eeprom_stm32.c
+SRC += eep/flash_stm32.c
+OPT_DEFS += -DEEPROM_EMU_STM32F401xC
+COMMON_VPATH += keyboards/yandrstudio/tdcq68/f401/eep
diff --git a/keyboards/yandrstudio/boy40ble/keymaps/ble/keymap.c b/keyboards/yandrstudio/boy40ble/keymaps/ble/keymap.c
new file mode 100644
index 000000000000..21ee16fc0fa7
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/keymaps/ble/keymap.c
@@ -0,0 +1,125 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+#include "outputselect.h"
+#include "biu_ble_common.h"
+
+enum keyboard_keycodes {
+    BLE_TOG = SAFE_RANGE, // ble
+    USB_TOG,              // usb
+    BAU_TOG,              // if ble then usb, if usb then ble, Ble And Usb toggle
+    BL_SW_0,              // ble id 0
+    BL_SW_1,
+    BL_SW_2,
+    BL_SW_3,
+    BLE_DEL,              // delete current ble bound
+    BLE_CLR,              // delete all ble bound
+    NEW_SAFE_RANGE  // Important!
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+	LAYOUT(
+		KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+		KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_ENT,
+		KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_RSFT,
+		KC_LCTL, TO(2), KC_PSCR, KC_SPC, MO(1), KC_SLSH, KC_SCLN, KC_QUES),
+	LAYOUT(
+		KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC,
+		KC_TAB, KC_BSLS, KC_QUOT, KC_GRV, KC_LABK, KC_RABK, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_DEL,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RESET, BLE_TOG, USB_TOG, BL_SW_0, BL_SW_1, BLE_DEL, BLE_CLR,
+		KC_TRNS, KC_LGUI, KC_LALT, KC_SPC, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),
+	LAYOUT(
+		KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_UP, KC_TRNS,
+		KC_TRNS, TO(0), KC_TRNS, KC_TRNS, KC_TRNS, KC_LEFT, KC_DOWN, KC_RGHT),
+	LAYOUT(
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS)
+};
+
+void keyboard_post_init_user(void) {
+    palSetLineMode(A6, PAL_MODE_OUTPUT_PUSHPULL);
+    palClearLine(A6);
+    // eeconfig_init();
+    // uart_init(115200);
+    debug_enable=true;
+    //   debug_matrix=true;
+    //   debug_keyboard=true;
+    //     //debug_mouse=true;
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    if (record->event.pressed) {
+        uprintf("KL: kc: 0x%04X, col: %u, row: %u, pressed: %b, time: %u, interrupt: %b, count: %u\n", keycode, record->event.key.col, record->event.key.row, record->event.pressed, record->event.time, record->tap.interrupted, record->tap.count);
+    }
+    switch(keycode) {
+        case BLE_TOG:
+            if (record->event.pressed) {
+                set_output(OUTPUT_BLUETOOTH);
+                bluetooth_clear_buf();
+            }
+            return false;
+        case USB_TOG:
+            if (record->event.pressed) {
+                set_output(OUTPUT_USB);
+            }
+            return false;
+        case BAU_TOG:
+            if (record->event.pressed) {
+                if (where_to_send() == OUTPUT_USB) {
+                    // TODO: restart ble
+                    set_output(OUTPUT_BLUETOOTH);
+                    bluetooth_clear_buf();
+                } else {
+                    //ToDO: disconnect ble
+                    set_output(OUTPUT_USB);
+                }
+            }
+            return false;
+        case BL_SW_0:
+        case BL_SW_1:
+        case BL_SW_2:
+        case BL_SW_3:
+            if (record->event.pressed) {
+                // TODO: restart ble
+                set_output(OUTPUT_BLUETOOTH);
+                bluetooth_clear_buf();
+                bluetooth_switch_one(keycode - BL_SW_0);
+            }
+            return false;
+        case BLE_DEL:
+            if (record->event.pressed) {
+                if (where_to_send() == OUTPUT_BLUETOOTH) {
+                    bluetooth_unpair_current();
+                }
+            }
+            return false;
+        case BLE_CLR:
+            if (record->event.pressed) {
+                if (where_to_send() == OUTPUT_BLUETOOTH) {
+                    bluetooth_unpair_all();
+                }
+            }
+            return false;
+        default:
+            return true;
+    }
+    return true;
+}
diff --git a/keyboards/yandrstudio/boy40ble/keymaps/ble/rules.mk b/keyboards/yandrstudio/boy40ble/keymaps/ble/rules.mk
new file mode 100644
index 000000000000..d9ccf952b754
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/keymaps/ble/rules.mk
@@ -0,0 +1,4 @@
+VIA_ENABLE = yes
+CONSOLE_ENABLE = yes         # Console for debug
+
+BIU_BLE5_ENABLE = yes
diff --git a/keyboards/yandrstudio/boy40ble/readme.md b/keyboards/yandrstudio/boy40ble/readme.md
new file mode 100644
index 000000000000..1cf6a10ac73e
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/readme.md
@@ -0,0 +1,15 @@
+m60ble
+===
+
+A 61 keys keyboard with rgb (keys and underground) and bluetooth 5.x.
+This keyboard use 8mhz HSE and STM32F401 as MCU.
+
+Keyboard Maintainer: https://github.com/jiaxin96
+Hardware Supported: yp980ble
+Hardware Availability: https://github.com/Oh-My-Mechanical-Keyboard 
+
+Make example for this keyboard (after setting up your build environment):
+
+    make yandrstudio/boy40ble/f401:ble
+
+See [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) then the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information.
diff --git a/keyboards/yandrstudio/boy40ble/rules.mk b/keyboards/yandrstudio/boy40ble/rules.mk
new file mode 100644
index 000000000000..7f0ecba167bf
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/rules.mk
@@ -0,0 +1,14 @@
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+KEYBOARD_SHARED_EP = yes    # Free up some extra endpoints - needed if console+mouse+extra
+MOUSEKEY_ENABLE = no       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = yes         # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+
diff --git a/keyboards/yandrstudio/boy40ble/via-info.json b/keyboards/yandrstudio/boy40ble/via-info.json
new file mode 100644
index 000000000000..33f5da83d849
--- /dev/null
+++ b/keyboards/yandrstudio/boy40ble/via-info.json
@@ -0,0 +1,91 @@
+{
+  "name": "Boy40_Y&R",
+  "vendorId": "0xAA96",
+  "productId": "0xAAA6",
+  "lighting": "qmk_rgblight",
+  "matrix": { "rows": 4, "cols": 12 },
+  "layouts": {
+    "keymap": [
+      [
+        "0,0",
+        "0,1",
+        "0,2",
+        "0,3",
+        "0,4",
+        "0,5",
+        "0,6",
+        "0,7",
+        "0,8",
+        "0,9",
+        "0,10",
+        "0,11"
+      ],
+      [
+        {
+          "w": 1.25
+        },
+        "1,0",
+        "1,1",
+        "1,2",
+        "1,3",
+        "1,4",
+        "1,5",
+        "1,6",
+        "1,7",
+        "1,8",
+        "1,9",
+        {
+          "w": 1.75
+        },
+        "1,11"
+      ],
+      [
+        {
+          "w": 1.75
+        },
+        "2,0",
+        "2,2",
+        "2,3",
+        "2,4",
+        "2,5",
+        "2,6",
+        "2,7",
+        "2,8",
+        "2,9\n.",
+        "2,10",
+        {
+          "w": 1.25
+        },
+        "2,11"
+      ],
+      [
+        {
+          "w": 1.25
+        },
+        "3,0",
+        "3,1",
+        {
+          "w": 1.25
+        },
+        "3,2",
+        {
+          "w": 2.25
+        },
+        "3,4",
+        {
+          "w": 2.75
+        },
+        "3,7",
+        {
+          "w": 1.25
+        },
+        "3,9",
+        "3,10",
+        {
+          "w": 1.25
+        },
+        "3,11"
+      ]
+    ]
+  }
+}
diff --git a/keyboards/yandrstudio/yp980ble/f401/config.h b/keyboards/yandrstudio/yp980ble/f401/config.h
index b1cbebcf69da..266754f06d86 100644
--- a/keyboards/yandrstudio/yp980ble/f401/config.h
+++ b/keyboards/yandrstudio/yp980ble/f401/config.h
@@ -21,15 +21,15 @@
 /* RGN Matrix */
 #ifdef RGB_MATRIX_ENABLE
 
-#    define RGB_DI_PIN A7
+#    define RGB_DI_PIN B8
 #    define RGBLED_NUM 79
 #    define DRIVER_LED_TOTAL RGBLED_NUM
 
-#define WS2812_PWM_DRIVER PWMD3  // default: PWMD2
-#define WS2812_PWM_CHANNEL 2  // default: 2
+#define WS2812_PWM_DRIVER PWMD4  // default: PWMD2
+#define WS2812_PWM_CHANNEL 3  // default: 2
 #define WS2812_PWM_PAL_MODE 2  // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 2
-#define WS2812_DMA_STREAM STM32_DMA1_STREAM2  // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
-#define WS2812_DMA_CHANNEL 5  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM6  // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_DMA_CHANNEL 2  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
 
 
 #    define RGB_MATRIX_MAXIMUM_BRIGHTNESS 180
@@ -44,16 +44,17 @@
 
 #ifdef RGBLIGHT_ENABLE
 
-#    define RGB_DI_PIN A7
+#    define RGB_DI_PIN B8
 #    define RGBLED_NUM 79
 #    define DRIVER_LED_TOTAL RGBLED_NUM
+#    define RGBLIGHT_LIMIT_VAL 150
+#    define RGBLIGHT_SLEEP
 
-
-#define WS2812_PWM_DRIVER PWMD3  // default: PWMD2
-#define WS2812_PWM_CHANNEL 2  // default: 2
+#define WS2812_PWM_DRIVER PWMD4  // default: PWMD2
+#define WS2812_PWM_CHANNEL 3  // default: 2
 #define WS2812_PWM_PAL_MODE 2  // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 2
-#define WS2812_DMA_STREAM STM32_DMA1_STREAM2  // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
-#define WS2812_DMA_CHANNEL 5  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM6  // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_DMA_CHANNEL 2  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
 
 #endif
 
diff --git a/keyboards/yandrstudio/yp980ble/f401/halconf.h b/keyboards/yandrstudio/yp980ble/f401/halconf.h
index fca80d9a88ba..fe048fe8eea4 100644
--- a/keyboards/yandrstudio/yp980ble/f401/halconf.h
+++ b/keyboards/yandrstudio/yp980ble/f401/halconf.h
@@ -20,13 +20,8 @@
 #pragma once
 #include_next <halconf.h>
 
-#undef HAL_USE_SERIAL
-#define HAL_USE_SERIAL TRUE
-
-
-#undef HAL_USE_ADC
-#define HAL_USE_ADC    TRUE
-
+#undef HAL_USE_PWM
+#define HAL_USE_PWM    TRUE
 
 #undef  SERIAL_USB_BUFFERS_SIZE
 #define SERIAL_USB_BUFFERS_SIZE 256
diff --git a/keyboards/yandrstudio/yp980ble/f401/mcuconf.h b/keyboards/yandrstudio/yp980ble/f401/mcuconf.h
index 0751fd9a6891..827247eac669 100644
--- a/keyboards/yandrstudio/yp980ble/f401/mcuconf.h
+++ b/keyboards/yandrstudio/yp980ble/f401/mcuconf.h
@@ -19,12 +19,8 @@
 #include_next <mcuconf.h>
 
 
-#undef STM32_SERIAL_USE_USART1
-#define STM32_SERIAL_USE_USART1 TRUE
-
-
-#undef  STM32_ADC_USE_ADC1
-#define STM32_ADC_USE_ADC1                  TRUE
+#undef STM32_PWM_USE_TIM4
+#define STM32_PWM_USE_TIM4 TRUE
 
 
 #undef STM32_NO_INIT
diff --git a/keyboards/yandrstudio/yp980ble/f401/rules.mk b/keyboards/yandrstudio/yp980ble/f401/rules.mk
index 73bbf1d3f2cb..1f96d65a537c 100644
--- a/keyboards/yandrstudio/yp980ble/f401/rules.mk
+++ b/keyboards/yandrstudio/yp980ble/f401/rules.mk
@@ -13,7 +13,9 @@ QUANTUM_SRC += matrix.c
 
 # RGB_MATRIX_ENABLE = yes
 # RGB_MATRIX_DRIVER = WS2812
-# WS2812_DRIVER = pwm
+RGBLIGHT_ENABLE = yes
+RGBLIGHT_DRIVER = WS2812
+WS2812_DRIVER = pwm
 
 EEPROM_DRIVER = custom
 SRC += eep/eeprom_stm32.c
diff --git a/keyboards/yandrstudio/yp980ble/keymaps/ble/keymap.c b/keyboards/yandrstudio/yp980ble/keymaps/ble/keymap.c
index 9498a94b7831..f551f32f34dc 100644
--- a/keyboards/yandrstudio/yp980ble/keymaps/ble/keymap.c
+++ b/keyboards/yandrstudio/yp980ble/keymaps/ble/keymap.c
@@ -64,15 +64,24 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 
+void keyboard_post_init_user(void) {
+    // eeconfig_init();
+    // uart_init(115200);
+    debug_enable=true;
+    //   debug_matrix=true;
+    //   debug_keyboard=true;
+    //     //debug_mouse=true;
+}
 
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
-    // if (record->event.pressed) {
-    //     uprintf("KL: kc: 0x%04X, col: %u, row: %u, pressed: %b, time: %u, interrupt: %b, count: %u\n", keycode, record->event.key.col, record->event.key.row, record->event.pressed, record->event.time, record->tap.interrupted, record->tap.count);
-    // }
+    if (record->event.pressed) {
+        uprintf("KL: kc: 0x%04X, col: %u, row: %u, pressed: %b, time: %u, interrupt: %b, count: %u\n", keycode, record->event.key.col, record->event.key.row, record->event.pressed, record->event.time, record->tap.interrupted, record->tap.count);
+    }
     switch(keycode) {
         case BLE_TOG:
             if (record->event.pressed) {
                 set_output(OUTPUT_BLUETOOTH);
+                bluetooth_clear_buf();
             }
             return false;
         case USB_TOG:
@@ -83,8 +92,11 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         case BAU_TOG:
             if (record->event.pressed) {
                 if (where_to_send() == OUTPUT_USB) {
+                    // TODO: restart ble
                     set_output(OUTPUT_BLUETOOTH);
+                    bluetooth_clear_buf();
                 } else {
+                    //ToDO: disconnect ble
                     set_output(OUTPUT_USB);
                 }
             }
@@ -94,17 +106,24 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         case BL_SW_2:
         case BL_SW_3:
             if (record->event.pressed) {
+                // TODO: restart ble
+                set_output(OUTPUT_BLUETOOTH);
+                bluetooth_clear_buf();
                 bluetooth_switch_one(keycode - BL_SW_0);
             }
             return false;
         case BLE_DEL:
             if (record->event.pressed) {
-                bluetooth_unpair_current();
+                if (where_to_send() == OUTPUT_BLUETOOTH) {
+                    bluetooth_unpair_current();
+                }
             }
             return false;
         case BLE_CLR:
             if (record->event.pressed) {
-                bluetooth_unpair_all();
+                if (where_to_send() == OUTPUT_BLUETOOTH) {
+                    bluetooth_unpair_all();
+                }
             }
             return false;
         default:
diff --git a/keyboards/yandrstudio/yp980ble/keymaps/via/keymap.c b/keyboards/yandrstudio/yp980ble/keymaps/via/keymap.c
index 3a1f0fc09685..ad2fb5ea8052 100644
--- a/keyboards/yandrstudio/yp980ble/keymaps/via/keymap.c
+++ b/keyboards/yandrstudio/yp980ble/keymaps/via/keymap.c
@@ -28,6 +28,26 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 		KC_MINS, KC_EQL, KC_BSPC, KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS, KC_P3, KC_ENT,
 		KC_F11, KC_F12, KC_DEL, KC_HOME, KC_PGUP, KC_PGDN, KC_SLSH, KC_UP, KC_LSFT, KC_P1, KC_P2),
 	LAYOUT(
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RGB_TOG, RGB_VAD, RGB_MOD, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RGB_VAI, KC_TRNS, KC_TRNS, KC_TRNS),
+        	LAYOUT(
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RGB_TOG, RGB_VAD, RGB_MOD, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RGB_VAI, KC_TRNS, KC_TRNS, KC_TRNS),
+        	LAYOUT(
 		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RGB_TOG, RGB_VAD, RGB_MOD, KC_TRNS, KC_TRNS,
 		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
 		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
diff --git a/keyboards/yandrstudio/yp980ble/readme.md b/keyboards/yandrstudio/yp980ble/readme.md
index 022c6bb61817..fbecf02e47bb 100644
--- a/keyboards/yandrstudio/yp980ble/readme.md
+++ b/keyboards/yandrstudio/yp980ble/readme.md
@@ -10,6 +10,6 @@ Hardware Availability: https://github.com/Oh-My-Mechanical-Keyboard
 
 Make example for this keyboard (after setting up your build environment):
 
-    make yandrstudio/yp980ble/f401:ble
+    make yp980ble/f401:ble
 
 See [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) then the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information.
diff --git a/keyboards/yandrstudio/yp980ble/rules.mk b/keyboards/yandrstudio/yp980ble/rules.mk
index e53f7e76fc3b..b244656b49c5 100644
--- a/keyboards/yandrstudio/yp980ble/rules.mk
+++ b/keyboards/yandrstudio/yp980ble/rules.mk
@@ -3,14 +3,12 @@
 #
 BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
 KEYBOARD_SHARED_EP = yes    # Free up some extra endpoints - needed if console+mouse+extra
-MOUSEKEY_ENABLE = no       # Mouse keys
+MOUSEKEY_ENABLE = yes       # Mouse keys
 EXTRAKEY_ENABLE = yes       # Audio control and System control
 CONSOLE_ENABLE = no         # Console for debug
 COMMAND_ENABLE = yes         # Commands for debug and configuration
-# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
-SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
 # if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
-NKRO_ENABLE = no           # USB Nkey Rollover
+NKRO_ENABLE = yes           # USB Nkey Rollover
 
 
 
diff --git a/keyboards/yandrstudio/zhou75/config.h b/keyboards/yandrstudio/zhou75/config.h
new file mode 100644
index 000000000000..722ccf941852
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/config.h
@@ -0,0 +1,44 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xAA96
+#define PRODUCT_ID      0xAAA7
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    JasonRen biu
+#define PRODUCT         zhou75
+
+// enable the nkro when using the VIA.
+#define FORCE_NKRO
+
+// fix VIA RGB_light
+#define VIA_HAS_BROKEN_KEYCODES
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+// #define DEBUG_MATRIX_SCAN_RATE
+
+#define USB_POLLING_INTERVAL_MS 1
+#define QMK_KEYS_PER_SCAN 4
+
+#define TAP_CODE_DELAY 15
diff --git a/keyboards/yandrstudio/zhou75/f401/board.h b/keyboards/yandrstudio/zhou75/f401/board.h
new file mode 100644
index 000000000000..1a46a8194575
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/board.h
@@ -0,0 +1,25 @@
+/* Copyright 2020 Nick Brassel (tzarc)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include_next "board.h"
+
+
+#undef STM32_HSECLK
+#define STM32_HSECLK 16000000
+
+
+#define BOARD_YANDR_BIU_F401
diff --git a/keyboards/yandrstudio/zhou75/f401/chconf.h b/keyboards/yandrstudio/zhou75/f401/chconf.h
new file mode 100644
index 000000000000..b69c1fca78bf
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/chconf.h
@@ -0,0 +1,36 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define CH_CFG_ST_FREQUENCY 10000
+
+#define CH_CFG_ST_RESOLUTION 16
+
+#define CH_CFG_FACTORY_OBJECTS_REGISTRY TRUE
+
+#define CH_CFG_FACTORY_GENERIC_BUFFERS TRUE
+
+#define CH_CFG_FACTORY_SEMAPHORES TRUE
+
+#define CH_CFG_FACTORY_MAILBOXES TRUE
+
+#define CH_CFG_FACTORY_OBJ_FIFOS TRUE
+
+#define CH_CFG_FACTORY_PIPES TRUE
+
+#include_next <chconf.h>
+
diff --git a/keyboards/yandrstudio/zhou75/f401/config.h b/keyboards/yandrstudio/zhou75/f401/config.h
new file mode 100644
index 000000000000..083ad80957c5
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/config.h
@@ -0,0 +1,89 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "config_common.h"
+
+/* key matrix size */
+#define MATRIX_ROWS 6
+#define MATRIX_COLS 15
+
+//                        0    1    2    3     4    5    6   7    8    9    10   11   12  13   14  15   16   17
+#define MATRIX_COL_PINS { A6,  A3,  A7,  B0,   B1,  B10, A2, B13, C13, C15, A15, B3,  B4, B6,  B9}
+#define MATRIX_ROW_PINS { A9,  A8,  B15, B14,  A1,  C14}
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION ROW2COL
+
+
+/* RGN Matrix */
+#ifdef RGB_MATRIX_ENABLE
+
+#    define RGB_DI_PIN B5
+#    define RGBLED_NUM 81
+#    define DRIVER_LED_TOTAL RGBLED_NUM
+
+
+#define WS2812_PWM_DRIVER PWMD3  // default: PWMD2
+#define WS2812_PWM_CHANNEL 2  // default: 2
+#define WS2812_PWM_PAL_MODE 2  // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 2
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM2  // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_DMA_CHANNEL 5  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+
+
+#    define RGB_MATRIX_MAXIMUM_BRIGHTNESS 150
+#    define RGBLIGHT_VAL_STEP 15
+#    define RGB_DISABLE_WHEN_USB_SUSPENDED true
+#    define RGB_MATRIX_CENTER { 32, 96 }
+#    define RGB_MATRIX_KEYPRESSES
+#    define RGB_MATRIX_FRAMEBUFFER_EFFECTS
+#    define RGBLIGHT_ANIMATIONS
+
+// #    define WS2812_BYTE_ORDER WS2812_BYTE_ORDER_RGB
+
+#endif
+
+
+#ifdef RGBLIGHT_ENABLE
+
+#    define RGB_DI_PIN B5
+#    define RGBLED_NUM 81
+#    define DRIVER_LED_TOTAL RGBLED_NUM
+#    define RGBLIGHT_LIMIT_VAL 150
+#    define RGBLIGHT_SLEEP
+
+#define WS2812_PWM_DRIVER PWMD3  // default: PWMD2
+#define WS2812_PWM_CHANNEL 2  // default: 2
+#define WS2812_PWM_PAL_MODE 2  // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 2
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM2  // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_DMA_CHANNEL 5  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+
+
+
+// #    define WS2812_BYTE_ORDER WS2812_BYTE_ORDER_RGB
+
+#endif
+
+
+
+#ifdef ENCODER_ENABLE
+
+#define ENCODERS_PAD_A { B7, A5 }
+#define ENCODERS_PAD_B { B8, A6 }
+
+#define ENCODER_RESOLUTIONS { 2, 2 }
+
+#endif
diff --git a/keyboards/yandrstudio/zhou75/f401/eep/eeprom_stm32.c b/keyboards/yandrstudio/zhou75/f401/eep/eeprom_stm32.c
new file mode 100644
index 000000000000..12071a21291e
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/eep/eeprom_stm32.c
@@ -0,0 +1,217 @@
+/*
+ * This software is experimental and a work in progress.
+ * Under no circumstances should these files be used in relation to any critical system(s).
+ * Use of these files is at your own risk.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * This files are free to use from http://engsta.com/stm32-flash-memory-eeprom-emulator/ by
+ * Artur F.
+ *
+ * Modifications for QMK and STM32F303 by Yiancar
+ * update for STM32F4 support and the the flashing algorithm by yulei
+ * Adjust the file structure to custom EEPROM_DRIVER by jiaxin96 for support stm32f401cc
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "eeprom_stm32_custom.h"
+#include "eeprom_driver.h"
+/*****************************************************************************
+ * Allows to use the internal flash to store non volatile data. To initialize
+ * the functionality use the EEPROM_Init() function. Be sure that by reprogramming
+ * of the controller just affected pages will be deleted. In other case the non
+ * volatile data will be lost.
+ ******************************************************************************/
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Functions -----------------------------------------------------------------*/
+
+#define IS_VALID_ADDRESS(x) ((x) < FEE_MAX_BYTES)
+
+uint8_t DataBuf[FEE_MAX_BYTES];
+static void EEPROM_Backup(void);
+static FLASH_Status EEPROM_Restore(void);
+static uint32_t EEPROM_FindValidAddress(void);
+static void EEPROM_Clear(void);
+
+/*****************************************************************************
+ *  Unlock the FLASH programming and initialized the DataBuf
+ ******************************************************************************/
+uint16_t EEPROM_Init(void) {
+    // unlock flash
+    FLASH_Unlock();
+
+    // initialize DataBuf
+    EEPROM_Backup();
+
+    // Clear Flags
+    // FLASH_ClearFlag(FLASH_SR_EOP|FLASH_SR_PGERR|FLASH_SR_WRPERR);
+
+    return FEE_DENSITY_BYTES;
+}
+void eeprom_driver_init(void) {
+    EEPROM_Init();
+}
+
+/*****************************************************************************
+ *  Erase the whole reserved Flash Space used for user Data
+ ******************************************************************************/
+void EEPROM_Erase(void) {
+    // erase all flash pages
+    EEPROM_Clear();
+
+    // reset the content of the buffer
+    memset(&DataBuf[0], FEE_EMPTY_BYTE, sizeof(DataBuf));
+}
+void eeprom_driver_erase(void) {
+    EEPROM_Erase();
+}
+/*****************************************************************************
+ * Write data with its eeprom address to flash if there has empty words,
+ * otherwise backup the current valid data, erase all flash pages,
+ * and finally restore the valid data.
+ *******************************************************************************/
+uint16_t EEPROM_WriteDataByte(uint16_t Address, uint8_t DataByte) {
+    FLASH_Status FlashStatus = FLASH_COMPLETE;
+
+    uint32_t addr;
+    // exit if not a valid address
+    if (!IS_VALID_ADDRESS(Address)) {
+        return 0;
+    }
+
+// we are sure the address will not be out of bound
+#pragma GCC diagnostic ignored "-Warray-bounds"
+    // same value, do not need program
+    if (DataBuf[Address] == DataByte) {
+        return FlashStatus;
+    }
+
+    // find the address can be written
+    addr = EEPROM_FindValidAddress();
+    DataBuf[Address] = DataByte;
+#pragma GCC diagnostic pop
+    if (addr == FEE_EMPTY_VALUE) {
+        // EEPROM is full, need to erase and reprogramming
+        EEPROM_Clear();
+        EEPROM_Restore();
+    } else {
+        FLASH_ProgramHalfWord(FEE_ADDR_ADDRESS(addr), Address);
+        FLASH_ProgramHalfWord(FEE_DATA_ADDRESS(addr), DataByte);
+    }
+
+    return FlashStatus;
+}
+/*****************************************************************************
+ *  Read once data byte from a specified address.
+ *******************************************************************************/
+uint8_t EEPROM_ReadDataByte(uint16_t Address) {
+    if (!IS_VALID_ADDRESS(Address)) {
+        return FEE_EMPTY_BYTE;
+    }
+
+    // Get Byte from caches
+    return DataBuf[Address];
+}
+
+/*****************************************************************************
+ *  helper functions
+ *******************************************************************************/
+// backup the current data
+void EEPROM_Backup(void)
+{
+    uint32_t begin = FEE_PAGE_BASE_ADDRESS;
+    uint32_t end = FEE_PAGE_END_ADDRESS;
+    memset(&DataBuf[0], FEE_EMPTY_BYTE, sizeof(DataBuf));
+    while( begin < end) {
+        uint16_t addr = *(__IO uint16_t*)(FEE_ADDR_ADDRESS(begin));
+        if (IS_VALID_ADDRESS(addr)) {
+            DataBuf[addr] = *(__IO uint16_t*)(FEE_DATA_ADDRESS(begin));
+        } else if( addr == FEE_EMPTY_WORD) {
+            uint16_t data = *(__IO uint16_t*)(FEE_DATA_ADDRESS(begin));
+            if (data == FEE_EMPTY_WORD) {
+                // we reached the end of valid data
+                break;
+            }
+        }
+        begin += 4;
+    }
+}
+// restore data from DataBuf
+FLASH_Status EEPROM_Restore(void) {
+    uint32_t cur = FEE_PAGE_BASE_ADDRESS;
+    for (uint8_t i = 0; i < FEE_MAX_BYTES; i++) {
+        if (DataBuf[i] != FEE_EMPTY_BYTE) {
+            FLASH_ProgramHalfWord(FEE_ADDR_ADDRESS(cur), i);
+            FLASH_ProgramHalfWord(FEE_DATA_ADDRESS(cur), DataBuf[i]);
+            cur += 4;
+        }
+    }
+    return FLASH_COMPLETE;
+}
+// find an empty place for programming
+uint32_t EEPROM_FindValidAddress(void) {
+    uint32_t begin = FEE_PAGE_BASE_ADDRESS;
+    uint32_t end = FEE_PAGE_END_ADDRESS;
+    while( begin < end) {
+        uint32_t data = *(__IO uint32_t*)(begin);
+        if (data == FEE_EMPTY_VALUE) {
+            return begin;
+        }
+        begin += 4;
+    }
+    return FEE_EMPTY_VALUE;
+}
+
+void EEPROM_Clear(void)
+{
+#if defined(EEPROM_EMU_STM32F401xC)
+    FLASH_ErasePage(FEE_SECTOR_ID);
+#else
+    int page_num = 0;
+
+    // delete all pages from specified start page to the last page
+    do {
+        FLASH_ErasePage(FEE_PAGE_BASE_ADDRESS + (page_num * FEE_PAGE_SIZE));
+        page_num++;
+    } while (page_num < FEE_DENSITY_PAGES);
+#endif
+}
+/*****************************************************************************
+ *  Wrap library in AVR style functions.
+ *******************************************************************************/
+uint8_t eeprom_read_byte_f4(const uint8_t *Address) {
+    const uint16_t p = (const uint32_t)Address;
+    return EEPROM_ReadDataByte(p);
+}
+
+void eeprom_write_byte_f4(uint8_t *Address, uint8_t Value) {
+    uint16_t p = (uint32_t)Address;
+    EEPROM_WriteDataByte(p, Value);
+}
+
+
+void eeprom_read_block(void *buf, const void *addr, size_t len) {
+    const uint8_t *p    = (const uint8_t *)addr;
+    uint8_t *      dest = (uint8_t *)buf;
+    while (len--) {
+        *dest++ = eeprom_read_byte_f4(p++);
+    }
+}
+
+void eeprom_write_block(const void *buf, void *addr, size_t len) {
+    uint8_t *      p   = (uint8_t *)addr;
+    const uint8_t *src = (const uint8_t *)buf;
+    while (len--) {
+        eeprom_write_byte_f4(p++, *src++);
+    }
+}
+
+
diff --git a/keyboards/yandrstudio/zhou75/f401/eep/eeprom_stm32_custom.h b/keyboards/yandrstudio/zhou75/f401/eep/eeprom_stm32_custom.h
new file mode 100644
index 000000000000..70beda433bbc
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/eep/eeprom_stm32_custom.h
@@ -0,0 +1,106 @@
+/*
+ * This software is experimental and a work in progress.
+ * Under no circumstances should these files be used in relation to any critical system(s).
+ * Use of these files is at your own risk.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * This files are free to use from http://engsta.com/stm32-flash-memory-eeprom-emulator/ by
+ * Artur F.
+ *
+ *
+ * This library assumes 8-bit data locations. To add a new MCU, please provide the flash
+ * page size and the total flash size in Kb. The number of available pages must be a multiple
+ * of 2. Only half of the pages account for the total EEPROM size.
+ * This library also assumes that the pages are not used by the firmware.
+ *
+ * Modifications for QMK and STM32F303 by Yiancar
+ * update for STM32F4 support and the the flashing algorithm by yulei
+ * Adjust the file structure to custom EEPROM_DRIVER by jiaxin96 for support stm32f401cc
+ */
+
+#pragma once
+
+#include <ch.h>
+#include <hal.h>
+#include "flash_stm32.h"
+
+// HACK ALERT. This definition may not match your processor
+// To Do. Work out correct value for EEPROM_PAGE_SIZE on the STM32F103CT6 etc
+#if defined(EEPROM_EMU_STM32F303xC)
+#    define MCU_STM32F303CC
+#elif defined(EEPROM_EMU_STM32F103xB)
+#    define MCU_STM32F103RB
+#elif defined(EEPROM_EMU_STM32F072xB)
+#    define MCU_STM32F072CB
+#elif defined(EEPROM_EMU_STM32F042x6)
+#    define MCU_STM32F042K6
+#elif defined(EEPROM_EMU_STM32F401xC)
+#    define MCU_STM32F401xC
+#else
+#    error "not implemented."
+#endif
+
+
+
+
+
+#ifndef EEPROM_PAGE_SIZE
+#    if defined(MCU_STM32F103RB) || defined(MCU_STM32F042K6)
+#        define FEE_PAGE_SIZE (uint16_t)0x400  // Page size = 1KByte
+#        define FEE_DENSITY_PAGES 4            // How many pages are used
+#    elif defined(MCU_STM32F103ZE) || defined(MCU_STM32F103RE) || defined(MCU_STM32F103RD) || defined(MCU_STM32F303CC) || defined(MCU_STM32F072CB)
+#        define FEE_PAGE_SIZE (uint16_t)0x800  // Page size = 2KByte
+#        define FEE_DENSITY_PAGES 4            // How many pages are used
+#    elif defined(MCU_STM32F401xC)
+#        define FEE_PAGE_SIZE (uint32_t)0x20000  // Page size = 128KByte
+#        define FEE_DENSITY_PAGES 1              // How many pages are used
+#        define FEE_SECTOR_ID 5                  // sector id of the flash
+#    else
+#        error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
+#    endif
+#endif
+
+#ifndef EEPROM_START_ADDRESS
+#    if defined(MCU_STM32F103RB) || defined(MCU_STM32F072CB)
+#        define FEE_MCU_FLASH_SIZE 128  // Size in Kb
+#    elif defined(MCU_STM32F042K6)
+#        define FEE_MCU_FLASH_SIZE 32  // Size in Kb
+#    elif defined(MCU_STM32F103ZE) || defined(MCU_STM32F103RE)
+#        define FEE_MCU_FLASH_SIZE 512  // Size in Kb
+#    elif defined(MCU_STM32F103RD)
+#        define FEE_MCU_FLASH_SIZE 384  // Size in Kb
+#    elif defined(MCU_STM32F303CC)
+#        define FEE_MCU_FLASH_SIZE 256  // Size in Kb
+#    elif defined(MCU_STM32F401xC)
+#        define FEE_MCU_FLASH_SIZE 256  // Size in Kb
+#    else
+#        error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
+#    endif
+#endif
+
+// DONT CHANGE
+// Choose location for the first EEPROM Page address on the top of flash
+// #define FEE_PAGE_BASE_ADDRESS ((uint32_t)(0x8000000 + FEE_MCU_FLASH_SIZE * 1024 - FEE_DENSITY_PAGES * FEE_PAGE_SIZE))
+// #define FEE_DENSITY_BYTES ((FEE_PAGE_SIZE / 2) * FEE_DENSITY_PAGES - 1)
+// #define FEE_LAST_PAGE_ADDRESS (FEE_PAGE_BASE_ADDRESS + (FEE_PAGE_SIZE * FEE_DENSITY_PAGES))
+// #define FEE_EMPTY_WORD ((uint16_t)0xFFFF)
+// #define FEE_ADDR_OFFSET(Address) (Address * 2)  // 1Byte per Word will be saved to preserve Flash
+
+#define FEE_PAGE_END_ADDRESS ((uint32_t)(0x08000000 + FEE_MCU_FLASH_SIZE * 1024))
+#define FEE_PAGE_BASE_ADDRESS ((uint32_t)((FEE_PAGE_END_ADDRESS) - FEE_DENSITY_PAGES * FEE_PAGE_SIZE))
+#define FEE_DENSITY_BYTES ((FEE_PAGE_SIZE / 4) * FEE_DENSITY_PAGES - 1) // 4 Bytes for address, value pair
+//#define FEE_LAST_PAGE_ADDRESS (FEE_PAGE_BASE_ADDRESS + (FEE_PAGE_SIZE * FEE_DENSITY_PAGES))
+#define FEE_EMPTY_BYTE ((uint8_t)0xFF)
+#define FEE_EMPTY_WORD ((uint16_t)0xFFFF)
+#define FEE_EMPTY_VALUE ((uint32_t)0xFFFFFFFF)
+//#define FEE_ADDR_OFFSET(Address) (Address * 2)      // 1 Byte per Word will be saved to preserve Flash
+#define FEE_DATA_ADDRESS(Address) ((Address)+2)     // flash address of the eeprom data
+#define FEE_ADDR_ADDRESS(Address) (Address)         // flash address of the eeprom address
+#define FEE_MAX_BYTES ((FEE_DENSITY_BYTES+1) > 1024 ? 1024 : (FEE_DENSITY_BYTES+1)) // eeprom size
+
diff --git a/keyboards/yandrstudio/zhou75/f401/eep/flash_stm32.c b/keyboards/yandrstudio/zhou75/f401/eep/flash_stm32.c
new file mode 100644
index 000000000000..c3f1937c5258
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/eep/flash_stm32.c
@@ -0,0 +1,223 @@
+/*
+ * This software is experimental and a work in progress.
+ * Under no circumstances should these files be used in relation to any critical system(s).
+ * Use of these files is at your own risk.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and
+ * https://github.com/leaflabs/libmaple
+ *
+ * Modifications for QMK and STM32F303 by Yiancar
+ * Adjust the file structure to custom EEPROM_DRIVER by jiaxin96 for support stm32f401cc
+ */
+
+#if defined(EEPROM_EMU_STM32F303xC)
+#    define STM32F303xC
+#    include "stm32f3xx.h"
+#elif defined(EEPROM_EMU_STM32F103xB)
+#    define STM32F103xB
+#    include "stm32f1xx.h"
+#elif defined(EEPROM_EMU_STM32F072xB)
+#    define STM32F072xB
+#    include "stm32f0xx.h"
+#elif defined(EEPROM_EMU_STM32F042x6)
+#    define STM32F042x6
+#    include "stm32f0xx.h"
+#elif defined(EEPROM_EMU_STM32F401xC)
+#    define STM32F401xC
+#    include "stm32f4xx.h"
+#else
+#    error "not implemented."
+#endif
+
+
+#include "flash_stm32.h"
+
+#if defined(EEPROM_EMU_STM32F103xB)
+#    define FLASH_SR_WRPERR FLASH_SR_WRPRTERR
+#endif
+
+#if defined(EEPROM_EMU_STM32F401xC)
+#    define FLASH_PSIZE_HFWORD FLASH_CR_PSIZE_0
+#    define FLASH_PSIZE_WORD FLASH_CR_PSIZE_1
+#    define FLASH_CR_SNB_POS 3
+/* the flash key was not defined in the CMSIS used by current chibios */
+#define FLASH_KEY1                          0x45670123U
+#define FLASH_KEY2                          0xCDEF89ABU
+#    define FLASH_SR_FLAGS (FLASH_SR_PGAERR|FLASH_SR_PGPERR|FLASH_SR_PGSERR|FLASH_SR_WRPERR)
+#else
+#    define FLASH_SR_FLAGS (FLASH_SR_EOP | FLASH_SR_PGERR | FLASH_SR_WRPERR)
+#endif
+
+/* Delay definition */
+#define EraseTimeout ((uint32_t)0x00000FFF)
+#define ProgramTimeout ((uint32_t)0x0000001F)
+
+#define ASSERT(exp) (void)((0))
+
+/**
+ * @brief  Inserts a time delay.
+ * @param  None
+ * @retval None
+ */
+static void delay(void) {
+    __IO uint32_t i = 0;
+    for (i = 0xFF; i != 0; i--) {
+    }
+}
+
+/**
+ * @brief  Returns the FLASH Status.
+ * @param  None
+ * @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG,
+ *   FLASH_ERROR_WRP or FLASH_COMPLETE
+ */
+FLASH_Status FLASH_GetStatus(void) {
+    if ((FLASH->SR & FLASH_SR_BSY) == FLASH_SR_BSY) return FLASH_BUSY;
+
+#if defined(EEPROM_EMU_STM32F401xC)
+    if ((FLASH->SR & (FLASH_SR_PGSERR | FLASH_SR_PGPERR | FLASH_SR_PGAERR))) return FLASH_ERROR_PG;
+    if ((FLASH->SR & FLASH_SR_WRPERR)) return FLASH_ERROR_WRP;
+#else
+    if ((FLASH->SR & FLASH_SR_PGERR) != 0) return FLASH_ERROR_PG;
+    if ((FLASH->SR & FLASH_SR_WRPERR) != 0) return FLASH_ERROR_WRP;
+    if ((FLASH->SR & FLASH_OBR_OPTERR) != 0) return FLASH_ERROR_OPT;
+#endif
+
+    return FLASH_COMPLETE;
+}
+
+/**
+ * @brief  Waits for a Flash operation to complete or a TIMEOUT to occur.
+ * @param  Timeout: FLASH progamming Timeout
+ * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
+ *   FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
+ */
+FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout) {
+    FLASH_Status status;
+
+    /* Check for the Flash Status */
+    status = FLASH_GetStatus();
+    /* Wait for a Flash operation to complete or a TIMEOUT to occur */
+    while ((status == FLASH_BUSY) && (Timeout != 0x00)) {
+        delay();
+        status = FLASH_GetStatus();
+        Timeout--;
+    }
+    if (Timeout == 0) status = FLASH_TIMEOUT;
+    /* Return the operation status */
+    return status;
+}
+
+/**
+ * @brief  Erases a specified FLASH page.
+ * @param  Page_Address: The page address or sector to be erased.
+ * @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG,
+ *   FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
+ */
+FLASH_Status FLASH_ErasePage(uint32_t Page) {
+    FLASH_Status status = FLASH_COMPLETE;
+    /* Check the parameters */
+    //ASSERT(IS_FLASH_ADDRESS(Page_Address));
+    /* Wait for last operation to be completed */
+    status = FLASH_WaitForLastOperation(EraseTimeout);
+
+    if (status == FLASH_COMPLETE) {
+        /* if the previous operation is completed, proceed to erase the page */
+#if defined(EEPROM_EMU_STM32F401xC)
+        FLASH->CR &= ~FLASH_CR_SNB;
+        FLASH->CR |= FLASH_CR_SER | (Page << FLASH_CR_SNB_POS);
+#else
+        FLASH->CR |= FLASH_CR_PER;
+        FLASH->AR = Page;
+#endif
+        FLASH->CR |= FLASH_CR_STRT;
+
+        /* Wait for last operation to be completed */
+        status = FLASH_WaitForLastOperation(EraseTimeout);
+        /* clear the SER or PER Bit */
+#if defined(EEPROM_EMU_STM32F401xC)
+        FLASH->CR &= ~(FLASH_CR_SER | FLASH_CR_SNB);
+#else
+        FLASH->CR &= ~FLASH_CR_PER;
+#endif
+        FLASH_ClearFlag(FLASH_SR_FLAGS);
+    }
+    /* Return the Erase Status */
+    return status;
+}
+
+/**
+ * @brief  Programs a half word at a specified address.
+ * @param  Address: specifies the address to be programmed.
+ * @param  Data: specifies the data to be programmed.
+ * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG,
+ *   FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT.
+ */
+FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data) {
+    FLASH_Status status = FLASH_BAD_ADDRESS;
+    if ((Address % sizeof(uint16_t) != 0 ) || !IS_FLASH_ADDRESS(Address)) {
+        return status;
+    }
+
+    /* Wait for last operation to be completed */
+    status = FLASH_WaitForLastOperation(ProgramTimeout);
+    if (status == FLASH_COMPLETE) {
+        /* if the previous operation is completed, proceed to program the new data */
+#if defined(EEPROM_EMU_STM32F401xC)
+        FLASH->CR &= ~FLASH_CR_PSIZE;
+        FLASH->CR |= FLASH_PSIZE_HFWORD;
+#endif
+        FLASH->CR |= FLASH_CR_PG;
+        *(__IO uint16_t*)Address = Data;
+        /* Wait for last operation to be completed */
+        status = FLASH_WaitForLastOperation(ProgramTimeout);
+        if (status != FLASH_TIMEOUT) {
+            /* if the program operation is completed, disable the PG Bit */
+            FLASH->CR &= ~FLASH_CR_PG;
+        }
+        FLASH_ClearFlag(FLASH_SR_FLAGS);
+    }
+    return status;
+}
+
+/**
+ * @brief  Unlocks the FLASH Program Erase Controller.
+ * @param  None
+ * @retval None
+ */
+void FLASH_Unlock(void) {
+    /* Authorize the FPEC Access */
+    FLASH->KEYR = FLASH_KEY1;
+    FLASH->KEYR = FLASH_KEY2;
+}
+
+/**
+ * @brief  Locks the FLASH Program Erase Controller.
+ * @param  None
+ * @retval None
+ */
+void FLASH_Lock(void) {
+    /* Set the Lock Bit to lock the FPEC and the FCR */
+    FLASH->CR |= FLASH_CR_LOCK;
+}
+
+/**
+ * @brief  Clears the FLASH's pending flags.
+ * @param  FLASH_FLAG: specifies the FLASH flags to clear.
+ *   This parameter can be any combination of the following values:
+ *     @arg FLASH_FLAG_PGERR: FLASH Programming error flag flag
+ *     @arg FLASH_FLAG_WRPERR: FLASH Write protected error flag
+ *     @arg FLASH_FLAG_EOP: FLASH End of Programming flag
+ * @retval None
+ */
+void FLASH_ClearFlag(uint32_t FLASH_FLAG) {
+    /* Clear the flags */
+    FLASH->SR |= FLASH_FLAG;
+}
diff --git a/keyboards/yandrstudio/zhou75/f401/halconf.h b/keyboards/yandrstudio/zhou75/f401/halconf.h
new file mode 100644
index 000000000000..c03bc49506d1
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/halconf.h
@@ -0,0 +1,35 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#pragma once
+#include_next <halconf.h>
+
+#undef HAL_USE_PWM
+#define HAL_USE_PWM    TRUE
+
+#undef  SERIAL_USB_BUFFERS_SIZE
+#define SERIAL_USB_BUFFERS_SIZE 256
+
+#undef  SERIAL_BUFFERS_SIZE
+#define SERIAL_BUFFERS_SIZE     128
+
+#undef  SPI_USE_WAIT
+#define SPI_USE_WAIT TRUE
+
+#undef  SPI_SELECT_MODE
+#define SPI_SELECT_MODE SPI_SELECT_MODE_PAD
+
diff --git a/keyboards/yandrstudio/zhou75/f401/matrix.c b/keyboards/yandrstudio/zhou75/f401/matrix.c
new file mode 100644
index 000000000000..d7040e338fbe
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/matrix.c
@@ -0,0 +1,236 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "util.h"
+#include "matrix.h"
+#include "debounce.h"
+#include "quantum.h"
+
+#ifdef DIRECT_PINS
+static pin_t direct_pins[MATRIX_ROWS][MATRIX_COLS] = DIRECT_PINS;
+#elif (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
+static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+#endif
+
+/* matrix state(1:on, 0:off) */
+extern matrix_row_t raw_matrix[MATRIX_ROWS];  // raw values
+extern matrix_row_t matrix[MATRIX_ROWS];      // debounced values
+
+static inline void setPinOutput_writeLow(pin_t pin) {
+    ATOMIC_BLOCK_FORCEON {
+        setPinOutput(pin);
+        writePinLow(pin);
+    }
+}
+
+static inline void setPinInputHigh_atomic(pin_t pin) {
+    ATOMIC_BLOCK_FORCEON { setPinInputHigh(pin); }
+}
+
+// matrix code
+
+#ifdef DIRECT_PINS
+
+static void init_pins(void) {
+    for (int row = 0; row < MATRIX_ROWS; row++) {
+        for (int col = 0; col < MATRIX_COLS; col++) {
+            pin_t pin = direct_pins[row][col];
+            if (pin != NO_PIN) {
+                setPinInputHigh(pin);
+            }
+        }
+    }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
+    // Start with a clear matrix row
+    matrix_row_t current_row_value = 0;
+
+    for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+        pin_t pin = direct_pins[current_row][col_index];
+        if (pin != NO_PIN) {
+            current_row_value |= readPin(pin) ? 0 : (MATRIX_ROW_SHIFTER << col_index);
+        }
+    }
+
+    // If the row has changed, store the row and return the changed flag.
+    if (current_matrix[current_row] != current_row_value) {
+        current_matrix[current_row] = current_row_value;
+        return true;
+    }
+    return false;
+}
+
+#elif defined(DIODE_DIRECTION)
+#    if (DIODE_DIRECTION == COL2ROW)
+
+static void select_col(uint8_t col) { palSetLine(col_pins[col]); }
+
+static void unselect_col(uint8_t col) { palClearLine(col_pins[col]); }
+
+static void unselect_rows(void) {
+    for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        palSetLineMode(row_pins[x], PAL_MODE_INPUT_PULLDOWN);
+    }
+}
+
+static void init_pins(void) {
+    unselect_rows();
+    for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+        palSetLineMode(col_pins[x], PAL_MODE_OUTPUT_PUSHPULL);
+    }
+    for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+        palClearLine(col_pins[x]);
+    }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) {
+    bool matrix_changed = false;
+
+    // Select col
+    select_col(current_col);
+    matrix_output_select_delay();
+
+    // For each row...
+    for (uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value    = current_matrix[row_index];
+        matrix_row_t current_row_value = last_row_value;
+
+        // Check row pin state
+        if (readPin(row_pins[row_index]) == 1) {
+            // Pin HI, set col bit
+            current_row_value |= (MATRIX_ROW_SHIFTER << current_col);
+        } else {
+            // Pin LO, clear col bit
+            current_row_value &= ~(MATRIX_ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_row_value)) {
+            matrix_changed |= true;
+            current_matrix[row_index] = current_row_value;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+    if (current_col + 1 < MATRIX_COLS) {
+        matrix_output_unselect_delay();  // wait for col signal to go HIGH
+    }
+
+    return matrix_changed;
+}
+
+#    elif (DIODE_DIRECTION == ROW2COL)
+
+static void select_row(uint8_t row) { palSetLine(row_pins[row]); }
+
+static void unselect_row(uint8_t row) { palClearLine(row_pins[row]); }
+
+static void unselect_cols(void) {
+    for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+        palSetLineMode(col_pins[x], PAL_MODE_INPUT_PULLDOWN);
+    }
+}
+
+static void init_pins(void) {
+    unselect_cols();
+    for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        palSetLineMode(row_pins[x], PAL_MODE_OUTPUT_PUSHPULL);
+    }
+    for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        palClearLine(row_pins[x]);
+    }
+}
+
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
+    // Start with a clear matrix row
+    matrix_row_t current_row_value = 0;
+
+    // Select row
+    select_row(current_row);
+    matrix_output_select_delay();
+
+    // For each col...
+    for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+        // Select the col pin to read (active low)
+        uint8_t pin_state = readPin(col_pins[col_index]);
+
+        // Populate the matrix row with the state of the col pin
+        current_row_value |= pin_state ? (MATRIX_ROW_SHIFTER << col_index) : 0;
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+    if (current_row + 1 < MATRIX_ROWS) {
+        matrix_output_unselect_delay();  // wait for row signal to go HIGH
+    }
+
+    // If the row has changed, store the row and return the changed flag.
+    if (current_matrix[current_row] != current_row_value) {
+        current_matrix[current_row] = current_row_value;
+        return true;
+    }
+    return false;
+}
+
+#    else
+#        error DIODE_DIRECTION must be one of COL2ROW or ROW2COL!
+#    endif
+#else
+#    error DIODE_DIRECTION is not defined!
+#endif
+
+void matrix_init(void) {
+    // initialize key pins
+    init_pins();
+
+    // initialize matrix state: all keys off
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        raw_matrix[i] = 0;
+        matrix[i]     = 0;
+    }
+
+    debounce_init(MATRIX_ROWS);
+
+    matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void) {
+    bool changed = false;
+
+#if defined(DIRECT_PINS) || (DIODE_DIRECTION == COL2ROW)
+    // Set col, read rows
+    for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+        changed |= read_rows_on_col(raw_matrix, current_col);
+    }
+#elif (DIODE_DIRECTION == ROW2COL)
+    // Set row, read cols
+    for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+        changed |= read_cols_on_row(raw_matrix, current_row);
+    }
+#endif
+
+    debounce(raw_matrix, matrix, MATRIX_ROWS, changed);
+
+    matrix_scan_quantum();
+    return (uint8_t)changed;
+}
diff --git a/keyboards/yandrstudio/zhou75/f401/mcuconf.h b/keyboards/yandrstudio/zhou75/f401/mcuconf.h
new file mode 100644
index 000000000000..404ac6ddda6a
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/mcuconf.h
@@ -0,0 +1,86 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_PWM_USE_TIM3
+#define STM32_PWM_USE_TIM3 TRUE
+
+#undef STM32_ST_USE_TIMER
+#define STM32_ST_USE_TIMER 2
+
+#undef STM32_NO_INIT
+#undef STM32_HSI_ENABLED
+#undef STM32_LSI_ENABLED
+#undef STM32_HSE_ENABLED
+#undef STM32_LSE_ENABLED
+#undef STM32_CLOCK48_REQUIRED
+#undef STM32_SW
+#undef STM32_PLLSRC
+#undef STM32_PLLM_VALUE
+#undef STM32_PLLN_VALUE
+#undef STM32_PLLP_VALUE
+#undef STM32_PLLQ_VALUE
+#undef STM32_HPRE
+#undef STM32_PPRE1
+#undef STM32_PPRE2
+#undef STM32_RTCSEL
+#undef STM32_RTCPRE_VALUE
+#undef STM32_MCO1SEL
+#undef STM32_MCO1PRE
+#undef STM32_MCO2SEL
+#undef STM32_MCO2PRE
+#undef STM32_I2SSRC
+#undef STM32_PLLI2SN_VALUE
+#undef STM32_PLLI2SR_VALUE
+#undef STM32_PVD_ENABLE
+#undef STM32_PLS
+#undef STM32_BKPRAM_ENABLE
+
+#define STM32_NO_INIT                       FALSE
+#define STM32_HSI_ENABLED                   TRUE
+#define STM32_LSI_ENABLED                   TRUE
+#define STM32_HSE_ENABLED                   TRUE
+#define STM32_LSE_ENABLED                   FALSE
+#define STM32_CLOCK48_REQUIRED              TRUE
+#define STM32_SW                            STM32_SW_PLL
+#define STM32_PLLSRC                        STM32_PLLSRC_HSE
+#define STM32_PLLM_VALUE                    16
+#define STM32_PLLN_VALUE                    192
+#define STM32_PLLP_VALUE                    4
+#define STM32_PLLQ_VALUE                    4
+// AHB prescaler value.
+#define STM32_HPRE                          STM32_HPRE_DIV1
+//APB1 prescaler value.
+#define STM32_PPRE1                         STM32_PPRE1_DIV4
+//APB2 prescaler value.
+#define STM32_PPRE2                         STM32_PPRE2_DIV2
+#define STM32_RTCSEL                        STM32_RTCSEL_LSI
+#define STM32_RTCPRE_VALUE                  8
+#define STM32_MCO1SEL                       STM32_MCO1SEL_HSI
+#define STM32_MCO1PRE                       STM32_MCO1PRE_DIV1
+#define STM32_MCO2SEL                       STM32_MCO2SEL_SYSCLK
+#define STM32_MCO2PRE                       STM32_MCO2PRE_DIV5
+#define STM32_I2SSRC                        STM32_I2SSRC_CKIN
+#define STM32_PLLI2SN_VALUE                 192
+#define STM32_PLLI2SR_VALUE                 5
+#define STM32_PVD_ENABLE                    FALSE
+#define STM32_PLS                           STM32_PLS_LEV0
+#define STM32_BKPRAM_ENABLE                 FALSE
+
+
diff --git a/keyboards/yandrstudio/zhou75/f401/rules.mk b/keyboards/yandrstudio/zhou75/f401/rules.mk
new file mode 100644
index 000000000000..0a1f4180ebc2
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/f401/rules.mk
@@ -0,0 +1,33 @@
+# MCU name
+MCU = STM32F401
+
+# Address of the bootloader in system memory
+STM32_BOOTLOADER_ADDRESS = 0x1FFF0000
+
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
+# # project specific file
+CUSTOM_MATRIX = lite    # for using the A9 pin as matrix io
+QUANTUM_SRC += matrix.c
+
+RGB_MATRIX_ENABLE = yes
+RGB_MATRIX_DRIVER = WS2812
+# RGBLIGHT_ENABLE = yes
+# RGBLIGHT_DRIVER = WS2812
+WS2812_DRIVER = pwm
+
+
+ENCODER_ENABLE = yes
+
+
+# EEPROM_DRIVER = spi
+EEPROM_DRIVER = custom
+SRC += eep/eeprom_stm32.c
+SRC += eep/flash_stm32.c
+OPT_DEFS += -DEEPROM_EMU_STM32F401xC
+COMMON_VPATH += keyboards/yandrstudio/whiteMouse28T/f401/eep
+
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE
diff --git a/keyboards/yandrstudio/zhou75/info-via-encoder.json b/keyboards/yandrstudio/zhou75/info-via-encoder.json
new file mode 100644
index 000000000000..21bb72ea98d2
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/info-via-encoder.json
@@ -0,0 +1,193 @@
+{
+    "name": "zhou75_Y&R",
+    "vendorId": "0xAA96",
+    "productId": "0xAAA7",
+    "lighting": {
+        "extends": "none",
+        "keycodes": "qmk"
+    },
+    "matrix": {
+        "rows": 6,
+        "cols": 15
+    },
+    "layouts": {
+        "keymap":
+        [
+            [
+              "5,4",
+              {
+                "x": 17
+              },
+              "5,7"
+            ],
+            [
+              {
+                "y": -0.5,
+                "x": 1.5
+              },
+              "0,0",
+              {
+                "x": 0.5
+              },
+              "0,2",
+              "0,3",
+              "0,4",
+              "0,5",
+              {
+                "x": 0.5
+              },
+              "0,6",
+              "0,7",
+              "0,8",
+              "0,9",
+              {
+                "x": 0.5
+              },
+              "0,10",
+              "0,11",
+              "0,12",
+              "0,13",
+              {
+                "x": 0.5
+              },
+              "0,14"
+            ],
+            [
+              {
+                "y": -0.5
+              },
+              "5,5",
+              {
+                "x": 17
+              },
+              "5,8"
+            ],
+            [
+              {
+                "x": 1.5
+              },
+              "1,0",
+              "1,1",
+              "1,2",
+              "1,3",
+              "1,4",
+              "1,5",
+              "1,6",
+              "1,7",
+              "1,8",
+              "1,9",
+              "1,10",
+              "1,11",
+              "1,12",
+              {
+                "w": 2
+              },
+              "1,13",
+              "1,14"
+            ],
+            [
+              {
+                "x": 1.5,
+                "w": 1.5
+              },
+              "2,0",
+              "2,1",
+              "2,2",
+              "2,3",
+              "2,4",
+              "2,5",
+              "2,6",
+              "2,7",
+              "2,8",
+              "2,9",
+              "2,10",
+              "2,11",
+              "2,12",
+              {
+                "w": 1.5
+              },
+              "2,13",
+              "2,14"
+            ],
+            [
+              {
+                "x": 1.5,
+                "w": 1.75
+              },
+              "3,0",
+              "3,1",
+              "3,2",
+              "3,3",
+              "3,4",
+              "3,5",
+              "3,6",
+              "3,7",
+              "3,8",
+              "3,9",
+              "3,10",
+              "3,11",
+              {
+                "w": 2.25
+              },
+              "3,13",
+              "3,14"
+            ],
+            [
+              {
+                "x": 1.5,
+                "w": 2.25
+              },
+              "4,0",
+              "4,2",
+              "4,3",
+              "4,4",
+              "4,5",
+              "4,6",
+              "4,7",
+              "4,8",
+              "4,9",
+              "4,10",
+              "4,11",
+              {
+                "w": 1.75
+              },
+              "4,12",
+              "4,13",
+              "4,14"
+            ],
+            [
+              {
+                "x": 1.5,
+                "w": 1.25
+              },
+              "5,0",
+              {
+                "w": 1.25
+              },
+              "5,1",
+              {
+                "w": 1.25
+              },
+              "5,3",
+              {
+                "w": 6.25
+              },
+              "5,6",
+              {
+                "w": 1.25
+              },
+              "5,10",
+              {
+                "w": 1.25
+              },
+              "5,11",
+              {
+                "x": 0.5
+              },
+              "5,12",
+              "5,13",
+              "5,14"
+            ]
+          ]
+    }
+}
diff --git a/keyboards/yandrstudio/zhou75/info-via.json b/keyboards/yandrstudio/zhou75/info-via.json
new file mode 100644
index 000000000000..a5dea801a9ac
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/info-via.json
@@ -0,0 +1,168 @@
+{
+    "name": "zhou75_Y&R",
+    "vendorId": "0xAA96",
+    "productId": "0xAAA7",
+    "lighting": {
+        "extends": "none",
+        "keycodes": "qmk"
+    },
+    "matrix": {
+        "rows": 6,
+        "cols": 15
+    },
+    "layouts": {
+        "keymap":
+        [
+            [
+              "0,0",
+              {
+                "x": 0.5
+              },
+              "0,2",
+              "0,3",
+              "0,4",
+              "0,5",
+              {
+                "x": 0.5
+              },
+              "0,6",
+              "0,7",
+              "0,8",
+              "0,9",
+              {
+                "x": 0.5
+              },
+              "0,10",
+              "0,11",
+              "0,12",
+              "0,13",
+              {
+                "x": 0.5
+              },
+              "0,14"
+            ],
+            [
+              {
+                "y": 0.5
+              },
+              "1,0",
+              "1,1",
+              "1,2",
+              "1,3",
+              "1,4",
+              "1,5",
+              "1,6",
+              "1,7",
+              "1,8",
+              "1,9",
+              "1,10",
+              "1,11",
+              "1,12",
+              {
+                "w": 2
+              },
+              "1,13",
+              "1,14"
+            ],
+            [
+              {
+                "w": 1.5
+              },
+              "2,0",
+              "2,1",
+              "2,2",
+              "2,3",
+              "2,4",
+              "2,5",
+              "2,6",
+              "2,7",
+              "2,8",
+              "2,9",
+              "2,10",
+              "2,11",
+              "2,12",
+              {
+                "w": 1.5
+              },
+              "2,13",
+              "2,14"
+            ],
+            [
+              {
+                "w": 1.75
+              },
+              "3,0",
+              "3,1",
+              "3,2",
+              "3,3",
+              "3,4",
+              "3,5",
+              "3,6",
+              "3,7",
+              "3,8",
+              "3,9",
+              "3,10",
+              "3,11",
+              {
+                "w": 2.25
+              },
+              "3,13",
+              "3,14"
+            ],
+            [
+              {
+                "w": 2.25
+              },
+              "4,0",
+              "4,2",
+              "4,3",
+              "4,4",
+              "4,5",
+              "4,6",
+              "4,7",
+              "4,8",
+              "4,9",
+              "4,10",
+              "4,11",
+              {
+                "w": 1.75
+              },
+              "4,12",
+              "4,13",
+              "4,14"
+            ],
+            [
+              {
+                "w": 1.25
+              },
+              "5,0",
+              {
+                "w": 1.25
+              },
+              "5,1",
+              {
+                "w": 1.25
+              },
+              "5,3",
+              {
+                "w": 6.25
+              },
+              "5,6",
+              {
+                "w": 1.25
+              },
+              "5,10",
+              {
+                "w": 1.25
+              },
+              "5,11",
+              {
+                "x": 0.5
+              },
+              "5,12",
+              "5,13",
+              "5,14"
+            ]
+          ]
+    }
+}
diff --git a/keyboards/yandrstudio/zhou75/keymaps/default/keymap.c b/keyboards/yandrstudio/zhou75/keymaps/default/keymap.c
new file mode 100644
index 000000000000..f946b0be2e30
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/keymaps/default/keymap.c
@@ -0,0 +1,91 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+	LAYOUT(
+		KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_PSCR,
+
+		KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL,
+		KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_INS,
+		KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT, KC_PGUP,
+		KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, KC_PGDN,
+		KC_LCTL, KC_LGUI, KC_LALT, KC_PGUP, KC_PGDN,KC_SPC, KC_VOLU, KC_VOLD, KC_RALT,  M(1), KC_LEFT, KC_DOWN, KC_RGHT),
+
+	LAYOUT(
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, RGB_TOG, RGB_MOD, RGB_MODE_REVERSE, RGB_VAI, RGB_VAD, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),
+
+	LAYOUT(
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),
+
+	LAYOUT(
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS)
+
+};
+
+
+#ifdef ENCODER_ENABLE
+
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+
+
+    // uprintf("%ud g_rgb_time scale8\n", scale16by8(g_rgb_timer, rgb_matrix_config.speed / 4));
+
+    return false;
+
+    switch (index)
+    {
+    case 0:
+        if (clockwise) {
+            tap_code16(KC_PGUP);
+        } else {
+            tap_code16(KC_PGDN);
+        }
+        break;
+    case 1:
+        if (clockwise) {
+            tap_code16(KC_VOLU);
+        } else {
+            tap_code16(KC_VOLD);
+        }
+        break;
+    default:
+        break;
+    }
+
+    return false;
+}
+#endif
diff --git a/keyboards/yandrstudio/zhou75/keymaps/via/keymap.c b/keyboards/yandrstudio/zhou75/keymaps/via/keymap.c
new file mode 100644
index 000000000000..1f3690f41796
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/keymaps/via/keymap.c
@@ -0,0 +1,115 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+	LAYOUT(
+		KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_PSCR,
+
+		KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL,
+		KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_INS,
+		KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT, KC_PGUP,
+		KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, KC_PGDN,
+		KC_LCTL, KC_LGUI, KC_LALT, KC_PGUP, KC_PGDN,KC_SPC, KC_VOLU, KC_VOLD, KC_RALT,  M(1), KC_LEFT, KC_DOWN, KC_RGHT),
+
+	LAYOUT(
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, RGB_TOG, RGB_MOD, RGB_MODE_REVERSE, RGB_VAI, RGB_VAD, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),
+
+	LAYOUT(
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),
+
+	LAYOUT(
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+		KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS)
+
+};
+
+
+#ifdef ENCODER_ENABLE
+
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+
+
+    // uprintf("%ud g_rgb_time scale8\n", scale16by8(g_rgb_timer, rgb_matrix_config.speed / 4));
+
+    return false;
+
+    switch (index)
+    {
+    case 0:
+        if (clockwise) {
+            uint16_t keycode = dynamic_keymap_get_keycode(biton32(layer_state), 5, 4);
+            if (keycode >= MACRO00 && keycode <= MACRO15) {
+                dynamic_keymap_macro_send(keycode - MACRO00);
+            } else {
+                tap_code16(keycode);
+            }
+        } else {
+            uint16_t keycode = dynamic_keymap_get_keycode(biton32(layer_state), 5, 5);
+            if (keycode >= MACRO00 && keycode <= MACRO15) {
+                dynamic_keymap_macro_send(keycode - MACRO00);
+            } else {
+                tap_code16(keycode);
+            }
+        }
+        break;
+    case 1:
+        if (clockwise) {
+            uint16_t keycode = dynamic_keymap_get_keycode(biton32(layer_state), 5, 7);
+            if (keycode >= MACRO00 && keycode <= MACRO15) {
+                dynamic_keymap_macro_send(keycode - MACRO00);
+            } else {
+                tap_code16(keycode);
+            }
+        } else {
+            uint16_t keycode = dynamic_keymap_get_keycode(biton32(layer_state), 5, 8);
+            if (keycode >= MACRO00 && keycode <= MACRO15) {
+                dynamic_keymap_macro_send(keycode - MACRO00);
+            } else {
+                tap_code16(keycode);
+            }
+        }
+        break;
+    default:
+        break;
+    }
+
+    return false;
+}
+
+
+#endif
+
+
diff --git a/keyboards/yandrstudio/zhou75/keymaps/via/rules.mk b/keyboards/yandrstudio/zhou75/keymaps/via/rules.mk
new file mode 100644
index 000000000000..1e5b99807cb7
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/yandrstudio/zhou75/readme.md b/keyboards/yandrstudio/zhou75/readme.md
new file mode 100644
index 000000000000..f1c593ab06f9
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/readme.md
@@ -0,0 +1,15 @@
+zhou75 version 1.0
+===
+
+A 87% keys keyboard with rgb (keys).
+This keyboard use 8mhz HSE and STM32F401 as MCU.
+
+Keyboard Maintainer: https://github.com/jiaxin96
+Hardware Supported: zhou75
+Hardware Availability: https://github.com/Oh-My-Mechanical-Keyboard 
+
+Make example for this keyboard (after setting up your build environment):
+
+    make yandrstudio/zhou75/f401:via
+
+See [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) then the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information.
diff --git a/keyboards/yandrstudio/zhou75/rules.mk b/keyboards/yandrstudio/zhou75/rules.mk
new file mode 100644
index 000000000000..24fe138d7d7b
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/rules.mk
@@ -0,0 +1,14 @@
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+KEYBOARD_SHARED_EP = yes    # Free up some extra endpoints - needed if console+mouse+extra
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes         # Console for debug
+# COMMAND_ENABLE = yes         # Commands for debug and configuration
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+NO_USB_STARTUP_CHECK = no	# Disable initialization only when usb is plugged in
+
+
diff --git a/keyboards/yandrstudio/zhou75/zhou75.c b/keyboards/yandrstudio/zhou75/zhou75.c
new file mode 100644
index 000000000000..2fad5aa83cbc
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/zhou75.c
@@ -0,0 +1,62 @@
+/* Copyright 2021 JasonRen(biu)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+
+
+#ifdef RGB_MATRIX_ENABLE
+led_config_t g_led_config = {
+    {
+        { 0, NO_LED, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13},
+        { 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28},
+        { 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43},
+        { 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, NO_LED, 56, 57},
+        { 58, NO_LED, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71},
+        { 72, 73, NO_LED, 74, NO_LED, NO_LED, 75, NO_LED, NO_LED, NO_LED, 76, 77, 78, 79, 80},
+    },
+    {
+      // LED Index to Physical Position
+        {0,0},           {32,0},  {48,0},  {64,0},  {80,0},  {96,0},  {112,0},  {128,0},  {144,0},  {160,0},  {176,0},  {192,0},  {208,0},  {224,0}, \
+        {0,13}, {16,13}, {32,13}, {48,13}, {64,13}, {80,13}, {96,13}, {112,13}, {128,13}, {144,13}, {160,13}, {176,13}, {192,13}, {208,13}, {224,13}, \
+        {0,26}, {16,26}, {32,26}, {48,26}, {64,26}, {80,26}, {96,26}, {112,26}, {128,26}, {144,26}, {160,26}, {176,26}, {192,26}, {208,26}, {224,26}, \
+        {0,38}, {16,38}, {32,38}, {48,38}, {64,38}, {80,38}, {96,38}, {112,38}, {128,38}, {144,38}, {160,38}, {176,38}, {192,38},           {224,38}, \
+        {0,51},          {32,51}, {48,51}, {64,51}, {80,51}, {96,51}, {112,51}, {128,51}, {144,51}, {160,51}, {176,51}, {192,51}, {208,51}, {224,51}, \
+        {0,64}, {16,64},          {48,64},                   {96,64},                               {160,64}, {176,64}, {192,64}, {208,64}, {224,64}
+    },
+    {
+      // LED Index to Flag
+      4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, \
+      4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, \
+      4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, \
+      4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, \
+      4, 4, 4, 4, 4, 4, 4, 4, 4
+    }
+};
+
+
+#endif
+
+#ifdef RGB_DISABLE_WHEN_USB_SUSPENDED
+void suspend_power_down_kb(void) {
+    rgb_matrix_set_suspend_state(true);
+    suspend_power_down_user();
+}
+
+void suspend_wakeup_init_kb(void) {
+    rgb_matrix_set_suspend_state(false);
+    suspend_wakeup_init_user();
+}
+#endif
diff --git a/keyboards/yandrstudio/zhou75/zhou75.h b/keyboards/yandrstudio/zhou75/zhou75.h
new file mode 100644
index 000000000000..3b3007c6c705
--- /dev/null
+++ b/keyboards/yandrstudio/zhou75/zhou75.h
@@ -0,0 +1,34 @@
+/* Copyright 2020 zvecr <git@zvecr.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "quantum.h"
+
+#define LAYOUT( \
+	K000,       K002, K003, K004, K005, K006, K007, K008, K009, K010, K011, K012, K013, K014, \
+	K200, K201, K202, K203, K204, K205, K206, K207, K208, K209, K210, K211, K212, K213, K214, \
+	K300, K301, K302, K303, K304, K305, K306, K307, K308, K309, K310, K311, K312, K313, K314, \
+	K400, K401, K402, K403, K404, K405, K406, K407, K408, K409, K410, K411,       K413, K414, \
+	K500,       K502, K503, K504, K505, K506, K507, K508, K509, K510, K511, K512, K513, K514, \
+	K600, K601,       K603, K604, K605, K606, K607, K608,       K610, K611, K612, K613, K614  \
+) { \
+	{ K000,  KC_NO, K002,  K003,  K004,  K005,  K006,  K007,  K008,  K009,  K010,  K011,  K012,  K013,  K014 }, \
+	{ K200,  K201,  K202,  K203,  K204,  K205,  K206,  K207,  K208,  K209,  K210,  K211,  K212,  K213,  K214 }, \
+	{ K300,  K301,  K302,  K303,  K304,  K305,  K306,  K307,  K308,  K309,  K310,  K311,  K312,  K313,  K314 }, \
+	{ K400,  K401,  K402,  K403,  K404,  K405,  K406,  K407,  K408,  K409,  K410,  K411,  KC_NO, K413,  K414 }, \
+	{ K500,  KC_NO, K502,  K503,  K504,  K505,  K506,  K507,  K508,  K509,  K510,  K511,  K512,  K513,  K514 }, \
+	{ K600,  K601,  KC_NO, K603,  K604,  K605, K606,   K607,  K608, KC_NO, K610,  K611,  K612,  K613,  K614 }  \
+}