diff --git a/libraries/PCF8591/CHANGELOG.md b/libraries/PCF8591/CHANGELOG.md
index 051e3c90..b3dccc9d 100644
--- a/libraries/PCF8591/CHANGELOG.md
+++ b/libraries/PCF8591/CHANGELOG.md
@@ -6,6 +6,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.2.1] - 2023-09-23
+- add Wire1 support for ESP32
+- update readme.md
+
+
 ## [0.2.0] - 2023-02-23
 - fix#10 analogRead() for differential modi.
 - add defines for 4 different modi
diff --git a/libraries/PCF8591/PCF8591.cpp b/libraries/PCF8591/PCF8591.cpp
index 3352d593..823726c9 100644
--- a/libraries/PCF8591/PCF8591.cpp
+++ b/libraries/PCF8591/PCF8591.cpp
@@ -2,7 +2,7 @@
 //    FILE: PCF8591.cpp
 //  AUTHOR: Rob Tillaart
 //    DATE: 2020-03-12
-// VERSION: 0.2.0
+// VERSION: 0.2.1
 // PURPOSE: I2C PCF8591 library for Arduino
 //     URL: https://github.com/RobTillaart/PCF8591
 
@@ -37,7 +37,6 @@ PCF8591::PCF8591(const uint8_t address, TwoWire *wire)
 #if defined (ESP8266) || defined(ESP32)
 bool PCF8591::begin(uint8_t sda, uint8_t scl, uint8_t val)
 {
-  _wire = &Wire;
   if ((sda < 255) && (scl < 255))
   {
     _wire->begin(sda, scl);
diff --git a/libraries/PCF8591/PCF8591.h b/libraries/PCF8591/PCF8591.h
index b0c1aadf..9cfa5006 100644
--- a/libraries/PCF8591/PCF8591.h
+++ b/libraries/PCF8591/PCF8591.h
@@ -3,7 +3,7 @@
 //    FILE: PCF8591.h
 //  AUTHOR: Rob Tillaart
 //    DATE: 2020-03-12
-// VERSION: 0.2.0
+// VERSION: 0.2.1
 // PURPOSE: I2C PCF8591 library for Arduino
 //     URL: https://github.com/RobTillaart/PCF8591
 
@@ -12,7 +12,7 @@
 #include "Wire.h"
 
 
-#define PCF8591_LIB_VERSION                 (F("0.2.0"))
+#define PCF8591_LIB_VERSION                 (F("0.2.1"))
 
 #define PCF8591_OK                          0x00
 #define PCF8591_PIN_ERROR                   0x81
diff --git a/libraries/PCF8591/README.md b/libraries/PCF8591/README.md
index 77f5d487..b908d5f7 100644
--- a/libraries/PCF8591/README.md
+++ b/libraries/PCF8591/README.md
@@ -2,8 +2,11 @@
 [![Arduino CI](https://github.com/RobTillaart/PCF8591/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
 [![Arduino-lint](https://github.com/RobTillaart/PCF8591/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/PCF8591/actions/workflows/arduino-lint.yml)
 [![JSON check](https://github.com/RobTillaart/PCF8591/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/PCF8591/actions/workflows/jsoncheck.yml)
+[![GitHub issues](https://img.shields.io/github/issues/RobTillaart/PCF8591.svg)](https://github.com/RobTillaart/PCF8591/issues)
+
 [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/PCF8591/blob/master/LICENSE)
 [![GitHub release](https://img.shields.io/github/release/RobTillaart/PCF8591.svg?maxAge=3600)](https://github.com/RobTillaart/PCF8591/releases)
+[![PlatformIO Registry](https://badges.registry.platformio.org/packages/robtillaart/library/PCF8591.svg)](https://registry.platformio.org/libraries/robtillaart/PCF8591)
 
 
 # PCF8591
@@ -150,3 +153,12 @@ See examples.
 #### 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/libraries/PCF8591/library.json b/libraries/PCF8591/library.json
index b7b4addd..b6d6fdcf 100644
--- a/libraries/PCF8591/library.json
+++ b/libraries/PCF8591/library.json
@@ -15,9 +15,9 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/PCF8591.git"
   },
-  "version": "0.2.0",
+  "version": "0.2.1",
   "license": "MIT",
-  "frameworks": "arduino",
+  "frameworks": "*",
   "platforms": "*",
   "headers": "PCF8591.h"
 }
diff --git a/libraries/PCF8591/library.properties b/libraries/PCF8591/library.properties
index d3061ea8..70616a2c 100644
--- a/libraries/PCF8591/library.properties
+++ b/libraries/PCF8591/library.properties
@@ -1,5 +1,5 @@
 name=PCF8591
-version=0.2.0
+version=0.2.1
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=PCF8591 library for Arduino. Supports multiple I2C WireN bus.