Peripheral | Function | Pin name | Pin No. | Comment |
Motor-1 | STEP | PC13 | 7 | All the GPIO related to stepper are converted to 5V output to driver (including STEP, DIR, EN, CS/UART, TMC SPI) |
DIR | PC14 | 8 | ||
EN | PE6 | 5 | ||
CS/UART | PG14 | 129 | ||
Motor-2 | STEP | PE4 | 3 | |
DIR | PE5 | 4 | ||
EN | PE3 | 2 | ||
CS/UART | PG13 | 128 | ||
Motor-3 | STEP | PE1 | 142 | |
DIR | PE0 | 141 | ||
EN | PE2 | 1 | ||
CS/UART | PG12 | 127 | ||
Motor-4 | STEP | PB8 | 139 | |
DIR | PB9 | 140 | ||
EN | PB7 | 137 | ||
CS/UART | PG11 | 126 | ||
Motor-5 | STEP | PB5 | 135 | |
DIR | PB4 | 134 | ||
EN | PB6 | 136 | ||
CS/UART | PG10 | 125 | ||
Motor-6 | STEP | PG15 | 132 | |
DIR | PB3 | 133 | ||
EN | PD5 | 119 | ||
CS/UART | PG9 | 124 | ||
Motor-7 | STEP | PD3 | 117 | |
DIR | PD2 | 116 | ||
EN | PD4 | 118 | ||
CS/UART | PD7 | 123 | ||
Motor-8 | STEP | PA10 | 102 | |
DIR | PA9 | 101 | ||
EN | PA15 | 110 | ||
CS/UART | PD6 | 122 | ||
Motor-9 | STEP | PA8 | 100 | |
DIR | PC7 | 97 | ||
EN | PC9 | 99 | ||
CS/UART | PG8 | 93 | ||
Motor-10 | STEP | PG6 | 91 | |
DIR | PC6 | 96 | ||
EN | PC8 | 98 | ||
CS/UART | PG7 | 92 | ||
TMC SPI (spi4) | MISO | PE13 | 66 | LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver |
MOSI | PE14 | 67 | ||
SCK | PE12 | 65 | ||
Heater | E0 | PF6 | 18 | is converted to 5V to MOSFET with flyback protection |
E1 | PA0 | 34 | ||
E2 | PF9 | 21 | ||
E3 | PF7 | 19 | ||
HB(heated bed) | PF5 | 15 | ||
Temperature | TH0 | PB0 | 46 | 4.7KOhm 0.1% pull up resistor for NTC100K,etc. 2.2KOhm 0.1% pull up resistor for PT1000 by jumper. with thermistor protection circuit |
TH1 | PC5 | 45 | ||
TH2 | PC4 | 44 | ||
TH3 | PA7 | 43 | ||
THB | PB1 | 47 | with thermistor protection circuit | |
Endstop | M1-STOP | PF0 | 10 | Share with M*-DIAG, And high level exceeding 5V are clamped to 5V by diodes |
M2-STOP | PF2 | 12 | ||
M3-STOP | PF4 | 14 | ||
M4-DET | PF3 | 13 | ||
M5-DET | PF1 | 11 | ||
M6-DET | PC15 | 9 | ||
2 wire FAN | FAN0 | PA6 | 42 | is converted to 5V to MOSFET with flyback protection |
FAN1 | PA5 | 41 | ||
FAN2 | PA4 | 40 | ||
FAN3 | PA3 | 37 | ||
4 wire FAN4 | control | PA1 | 35 | is converted to 5V |
tachometer | PC3 | 29 | isolated by optocoupler | |
4 wire FAN5 | control | PF8 | 20 | is converted to 5V |
tachometer | PC1 | 27 | isolated by optocoupler | |
4 wire FAN6 | control | PA2 | 36 | is converted to 5V |
tachometer | PC2 | 28 | isolated by optocoupler | |
Misc | RGB1(Neopixel/WS2812) | PE10 | 63 | is converted to 5V |
RGB2(Neopixel/WS2812) | PE9 | 60 | ||
PS-ON | PF13 | 53 | ||
PWRDET | PF12 | 50 | ||
OnBoard LED | PA14 | 109 | ||
BLTouch | SERVOS | PB14 | 75 | |
PROBE | PB15 | 76 | ||
Proximity switch | PROBE | PF11 | 49 | isolated by optocoupler, PNP or NPN can be selected by jumper |
FWS(hall_filament_width_sensor) | adc1 | PC0 | 26 | |
adc2 | PF10 | 22 | ||
Onboard EEPROM(24C32) | SCL2 | PB10 | 69 | |
SDA2 | PB11 | 70 | ||
FDCAN1 | RX | PD0 | 114 | |
TX | PD1 | 115 | ||
TFT UART3 | RX | PD9 | 78 | |
TX | PD8 | 77 | ||
USB-Device | OTG_FS_DM | PA11 | 103 | |
OTG_FS_DP | PA12 | 104 | ||
LCD-FPC(EXP1 + EXP2) | 5V | 5V | EXP1_10 | |
GND | GND | EXP1_9 | ||
LCD_D7 | PE15 | 68 | EXP1_8 | |
LCD_D6 | PD10 | 79 | EXP1_7 | |
LCD_D5 | PD11 | 80 | EXP1_6 | |
LCD_D4 | PD12 | 81 | EXP1_5 | |
LCD_RS | PD13 | 82 | EXP1_4 | |
LCD_EN | PD14 | 85 | EXP1_3 | |
BTN_ENC | PD15 | 86 | EXP1_2 | |
BEEPER | PG2 | 87 | EXP1_1 | |
RESET | RESET | 25 | EXP2_8 | |
SD_DETECT | PG3 | 88 | EXP2_7 | |
MOSI | PE14 | 67 | EXP2_6. LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver | |
BTN_EN2 | PG4 | 89 | EXP2_5 | |
SD_SS | PE11 | 64 | EXP2_4 | |
BTN_EN1 | PG5 | 90 | EXP2_3 | |
SCK | PE12 | 65 | EXP2_2. LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver | |
MISO | PE13 | 66 | EXP2_1. LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver | |
OnboardSD(spi4) | SD-CS | PB12 | 73 | |
SD-DET | PB13 | 74 | ||
MISO | PE13 | 66 | LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver | |
MOSI | PE14 | 67 | ||
SCK | PE12 | 65 | ||
Expansion SPI pin header(spi4) | SPI4-CS | PF14 | 54 | |
MISO | PE13 | 66 | LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver | |
MOSI | PE14 | 67 | ||
SCK | PE12 | 65 | ||
WIFI(ESP3D/RRF) | ESP-RST(espResetPin) | PB2 | 48 | |
ESP-IO0(espDataReadyPin) | PG0 | 56 | ||
ESP-IO4(TfrReadyPin) | PF15 | 55 | ||
ESP-RX(UART7) | PE7 | 58 | ||
ESP-TX(UART7) | PE8 | 59 | ||
ESP-CS | PG1 | 57 | ||
ESP-MOSI-SPI3 | PC12 | 113 | ||
ESP-MISO-SPI3 | PC11 | 112 | ||
ESP-CLK-SPI3 | PC10 | 111 |
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