diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11962f3..4ba90ec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.5.1] - 2023-09-23
+- add Wire1 support for ESP32
+- update readme.md
+- minor edits
+
+
 ## [0.5.0] - 2023-07-16
 - fix #21, remove PCA9685_MODE2_BLINK
   - is breaking (for some)
diff --git a/PCA9685.cpp b/PCA9685.cpp
index 3b06ecb..3d50237 100644
--- a/PCA9685.cpp
+++ b/PCA9685.cpp
@@ -2,8 +2,8 @@
 //    FILE: PCA9685.cpp
 //  AUTHOR: Rob Tillaart
 //    DATE: 24-apr-2016
-// VERSION: 0.5.0
-// PURPOSE: Arduino library for I2C PCA9685 16 channel PWM
+// VERSION: 0.5.1
+// PURPOSE: Arduino library for PCA9685 I2C LED driver, 16 channel PWM, 12 bit.
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 
 
@@ -27,7 +27,6 @@ PCA9685::PCA9685(const uint8_t deviceAddress, TwoWire *wire)
 #if defined (ESP8266) || defined(ESP32)
 bool PCA9685::begin(uint8_t sda, uint8_t scl, uint8_t mode1_mask, uint8_t mode2_mask)
 {
-  _wire = &Wire;
   if ((sda < 255) && (scl < 255))
   {
     _wire->begin(sda, scl);
diff --git a/PCA9685.h b/PCA9685.h
index 8c11546..af24a37 100644
--- a/PCA9685.h
+++ b/PCA9685.h
@@ -3,8 +3,8 @@
 //    FILE: PCA9685.h
 //  AUTHOR: Rob Tillaart
 //    DATE: 24-apr-2016
-// VERSION: 0.5.0
-// PURPOSE: Arduino library for I2C PCA9685 16 channel PWM
+// VERSION: 0.5.1
+// PURPOSE: Arduino library for PCA9685 I2C LED driver, 16 channel PWM, 12 bit.
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 
 
@@ -12,7 +12,7 @@
 #include "Wire.h"
 
 
-#define PCA9685_LIB_VERSION         (F("0.5.0"))
+#define PCA9685_LIB_VERSION         (F("0.5.1"))
 
 // ERROR CODES
 #define PCA9685_OK                  0x00
diff --git a/README.md b/README.md
index f928866..602b36f 100644
--- a/README.md
+++ b/README.md
@@ -2,13 +2,16 @@
 [![Arduino CI](https://github.com/RobTillaart/PCA9685_RT/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
 [![Arduino-lint](https://github.com/RobTillaart/PCA9685_RT/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/PCA9685_RT/actions/workflows/arduino-lint.yml)
 [![JSON check](https://github.com/RobTillaart/PCA9685_RT/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/PCA9685_RT/actions/workflows/jsoncheck.yml)
+[![GitHub issues](https://img.shields.io/github/issues/RobTillaart/PCA9685_RT.svg)](https://github.com/RobTillaart/PCA9685_RT/issues)
+
 [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/PCA9685_RT/blob/master/LICENSE)
 [![GitHub release](https://img.shields.io/github/release/RobTillaart/PCA9685_RT.svg?maxAge=3600)](https://github.com/RobTillaart/PCA9685_RT/releases)
+[![PlatformIO Registry](https://badges.registry.platformio.org/packages/robtillaart/library/PCA9685_RT.svg)](https://registry.platformio.org/libraries/robtillaart/PCA9685)
 
 
 # PCA9685_RT
 
-Arduino library for PCA9685 I2C 12 bit PWM LED driver, 16 channel.
+Arduino library for PCA9685 I2C LED driver, 16 channel PWM, 12 bit.
 
 
 ## Description
@@ -29,6 +32,9 @@ Lower frequencies do better than higher frequencies.
 
 ## Interface
 
+```cpp
+#include "PCA9685.h"
+```
 
 ### Constructor
 
@@ -248,7 +254,6 @@ please give feedback, so the documentation can be improved.
 For further details of the development, see - #10 (PCA9634 repo)
 
 
-
 ## Operation
 
 See examples
@@ -256,16 +261,30 @@ See examples
 
 ## Future
 
-#### must
+#### Must
+
 - improve documentation
 
-#### should
+#### Should
+
 - add unit tests (if possible)
 
-#### could
+#### Could
+
 - investigate int vs uint16_t ?
   - **setFrequency(), getFrequency(), \_freq**
 - sync with PCA9634/35/85 where possible
   - error handling?
 
+#### Wont
+
+
+## Support
+
+If you appreciate my libraries, you can support the development and maintenance.
+Improve the quality of the libraries by providing issues and Pull Requests, or
+donate through PayPal or GitHub sponsors.
+
+Thank you,
+
 
diff --git a/library.json b/library.json
index 61debe7..6c3a9d6 100644
--- a/library.json
+++ b/library.json
@@ -1,7 +1,7 @@
 {
   "name": "PCA9685",
   "keywords": "I2C,PCA9685,PWM,16channel",
-  "description": "Arduino library for I2C PCA9685 16 channel PWM",
+  "description": "Arduino library for PCA9685 I2C LED driver, 16 channel PWM, 12 bit.",
   "authors":
   [
     {
@@ -15,9 +15,9 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/PCA9685_RT.git"
   },
-  "version": "0.5.0",
+  "version": "0.5.1",
   "license": "MIT",
-  "frameworks": "arduino",
+  "frameworks": "*",
   "platforms": "*",
   "headers": "PCA9685.h"
 }
diff --git a/library.properties b/library.properties
index 337ef56..b06b829 100644
--- a/library.properties
+++ b/library.properties
@@ -1,8 +1,8 @@
 name=PCA9685_RT
-version=0.5.0
+version=0.5.1
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
-sentence=Arduino library for I2C PCA9685 16 channel PWM
+sentence=Arduino library for PCA9685 I2C LED driver, 16 channel PWM, 12 bit.
 paragraph=
 category=Signal Input/Output
 url=https://github.com/RobTillaart/PCA9685_RT