diff --git a/libraries/ADG725/ADG725.h b/libraries/ADG725/ADG725.h
index 680ab782..cc90c9b1 100644
--- a/libraries/ADG725/ADG725.h
+++ b/libraries/ADG725/ADG725.h
@@ -3,14 +3,14 @@
 //    FILE: ADG725.h
 //  AUTHOR: Rob Tillaart
 //    DATE: 2023-07-24
-// VERSION: 0.1.0
+// VERSION: 0.1.1
 // PURPOSE: Arduino library for ADG725 - 16 to 1 channel (2x) multiplexer
 //     URL: https://github.com/RobTillaart/ADG725
 
 
 #include "Arduino.h"
 
-#define ADG725_LIB_VERSION         (F("0.1.0"))
+#define ADG725_LIB_VERSION         (F("0.1.1"))
 
 #define ADG725_ALLOFF              0x80    //  ENable bit (false)
 #define ADG725_A_ONLY              0x20    //  retain B
diff --git a/libraries/ADG725/CHANGELOG.md b/libraries/ADG725/CHANGELOG.md
index 455123c0..7c4720d8 100644
--- a/libraries/ADG725/CHANGELOG.md
+++ b/libraries/ADG725/CHANGELOG.md
@@ -6,5 +6,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.1.1] - 2023-10-16
+- update readme.md
+
+
 ## [0.1.0] - 2023-07-24
 - initial version
diff --git a/libraries/ADG725/README.md b/libraries/ADG725/README.md
index a386633c..5e5317c8 100644
--- a/libraries/ADG725/README.md
+++ b/libraries/ADG725/README.md
@@ -2,8 +2,11 @@
 [![Arduino CI](https://github.com/RobTillaart/ADG725/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
 [![Arduino-lint](https://github.com/RobTillaart/ADG725/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/ADG725/actions/workflows/arduino-lint.yml)
 [![JSON check](https://github.com/RobTillaart/ADG725/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/ADG725/actions/workflows/jsoncheck.yml)
+[![GitHub issues](https://img.shields.io/github/issues/RobTillaart/ADG725.svg)](https://github.com/RobTillaart/ADG725/issues)
+
 [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/ADG725/blob/master/LICENSE)
 [![GitHub release](https://img.shields.io/github/release/RobTillaart/ADG725.svg?maxAge=3600)](https://github.com/RobTillaart/ADG725/releases)
+[![PlatformIO Registry](https://badges.registry.platformio.org/packages/robtillaart/library/ADG725.svg)](https://registry.platformio.org/libraries/robtillaart/ADG725)
 
 
 # ADG725
@@ -15,24 +18,23 @@ Arduino library for ADG725 - 16 to 1 channel (2x) multiplexer.
 
 **Experimental**
 
-ADG725 is an Arduino class that controls two 16 to 1 multiplexers 
-over a SPI like interface.
-Only one of the 16 channels can be connected at the same time.
-The channels can be set per multiplexer or together in one call.
+ADG725 is an Arduino class that controls two 16 to 1 multiplexers
+(or 1 to 16 multiplexer) over a SPI like interface.
+
+The channel selection is disjunct which means that only  
+one of the 16 channels can be connected (selected) at the same time.
+The channels can be set per multiplexer or together (same channel) in one call.
 The library also support to set them all off (17th state).
 
-On power-up, all switches are in the OFF state.
+On power-up, all switches are in the OFF state, so no channel is selected.
 
-This library can be used e.g. to connect 16 analog devices to 
+This library can be used e.g. to connect 16 analog devices (potmeters) to
 one analog port, or to select between 16 DHT22 sensors.
 
-Not tests with hardware have been done yet, so use with care.
+No tests with hardware have been done yet, so use with care.
 Feedback welcome!
 
 
-TODO insert picture.
-
-
 #### Related
 
 - https://github.com/RobTillaart/HC4051 (1x8 mux)
@@ -40,7 +42,9 @@ TODO insert picture.
 - https://github.com/RobTillaart/HC4053 (3x2 mux)
 - https://github.com/RobTillaart/HC4067 (1x16 mux)
 - https://github.com/RobTillaart/ADG725 (2x16 mux)
+- https://github.com/RobTillaart/ADG726 (2x16 mux)
 - https://github.com/RobTillaart/ADG731 (1x32 mux)
+- https://github.com/RobTillaart/ADG732 (1x32 mux)
 
 
 ## Interface
@@ -56,10 +60,10 @@ Valid values for channel are 0..15.
 Valid values for channel are 0..15.
 - **void setChannelB(uint8_t channel)** set the current channel for B only.
 Valid values for channel are 0..15.
-- **uint8_t getChannelA()** get last set channel A == 0..15 or ADG725_ALLOFF.
-- **uint8_t getChannelB()** get last set channel B == 0..15 or ADG725_ALLOFF.
-- **uint8_t channelCount()** returns 16 for ADG725.
-
+- **uint8_t getChannelA()** get last set channel A == 0..15 or ADG725_ALLOFF (128).
+- **uint8_t getChannelB()** get last set channel B == 0..15 or ADG725_ALLOFF (128).
+- **uint8_t channelCount()** returns 16 for ADG725, convenience for loops.
+- **void allOff()** sets all channels to OFF, no channel selected.
 
 ## Future
 
@@ -67,6 +71,7 @@ Valid values for channel are 0..15.
 
 - improve documentation
 - test with hardware
+- keep in sync with ADG726 (interface)
 
 #### Should
 
@@ -79,3 +84,11 @@ Valid values for channel are 0..15.
 #### 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/ADG725/examples/ADG725_demo/ADG725_demo.ino b/libraries/ADG725/examples/ADG725_demo/ADG725_demo.ino
index a269783c..0fac5a8c 100644
--- a/libraries/ADG725/examples/ADG725_demo/ADG725_demo.ino
+++ b/libraries/ADG725/examples/ADG725_demo/ADG725_demo.ino
@@ -20,10 +20,13 @@ void setup()
   delay(100);
   
   start = micros();
-  ADG.setChannel(0);
+  for (int ch = 0; ch < 16; ch++)
+  {
+    ADG.setChannel(ch);
+  }
   stop = micros();
   Serial.print("Time:\t");
-  Serial.println(stop - start);
+  Serial.println((stop - start) / 16.0);
   delay(100);
 
   start = micros();
diff --git a/libraries/ADG725/keywords.txt b/libraries/ADG725/keywords.txt
index 712d16b0..6beca6c0 100644
--- a/libraries/ADG725/keywords.txt
+++ b/libraries/ADG725/keywords.txt
@@ -11,9 +11,11 @@ setChannelB	KEYWORD2
 getChannelA	KEYWORD2
 getChannelB	KEYWORD2
 channelCount	KEYWORD2
+allOff	KEYWORD2
 
 
 # Constants (LITERAL1)
 ADG725_LIB_VERSION	LITERAL1
 
 ADG725_ALLOFF	LITERAL1
+
diff --git a/libraries/ADG725/library.json b/libraries/ADG725/library.json
index e008ea9e..ce682b05 100644
--- a/libraries/ADG725/library.json
+++ b/libraries/ADG725/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/ADG725"
   },
-  "version": "0.1.0",
+  "version": "0.1.1",
   "license": "MIT",
   "frameworks": "*",
   "platforms": "*",
diff --git a/libraries/ADG725/library.properties b/libraries/ADG725/library.properties
index 4c3337b3..2d191b54 100644
--- a/libraries/ADG725/library.properties
+++ b/libraries/ADG725/library.properties
@@ -1,5 +1,5 @@
 name=ADG725
-version=0.1.0
+version=0.1.1
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for ADG725 - 16 to 1 channel (2x) multiplexer.