diff --git a/libraries/AD5263/AD5263.cpp b/libraries/AD5263/AD5263.cpp
index 2a30edfa..f8666853 100644
--- a/libraries/AD5263/AD5263.cpp
+++ b/libraries/AD5263/AD5263.cpp
@@ -1,7 +1,7 @@
 //
 //    FILE: AD5263.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.1.1
+// VERSION: 0.1.2
 // PURPOSE: Arduino library for I2C digital potentiometer AD5263 and compatibles.
 //    DATE: 2023-10-09
 //     URL: https://github.com/RobTillaart/AD5263
@@ -52,21 +52,23 @@ bool AD5263::isConnected()
 
 uint8_t AD5263::reset()
 {
-  for (int i = 1; i < _pmCount; i++)
-  {
-    write(i, AD5263_MIDPOINT);
-  }
-  return write(0, AD5263_MIDPOINT, LOW, LOW);
+  return setAll(AD5263_MIDPOINT);
 }
 
 
 uint8_t AD5263::zeroAll()
+{
+  return setAll(0);
+}
+
+
+uint8_t AD5263::setAll(const uint8_t value)
 {
   for (int i = 1; i < _pmCount; i++)
   {
-    write(i, 0);
+    write(i, value);
   }
-  return write(0, 0, LOW, LOW);
+  return write(0, value, LOW, LOW);
 }
 
 
@@ -151,13 +153,14 @@ uint8_t AD5263::readBackRegister()
 
 uint8_t AD5263::midScaleReset(const uint8_t rdac)
 {
-    if (rdac >= _pmCount) return AD5263_ERROR;
+  if (rdac >= _pmCount) return AD5263_ERROR;
 
-  uint8_t cmd = AD5263_RESET;
-  if (rdac == 0) cmd |= AD5263_RDAC0;
-  if (rdac == 1) cmd |= AD5263_RDAC1;
-  if (rdac == 2) cmd |= AD5263_RDAC2;
-  if (rdac == 3) cmd |= AD5263_RDAC3;
+  uint8_t cmd = AD5263_RDAC0;
+  if (rdac == 1) cmd = AD5263_RDAC1;
+  if (rdac == 2) cmd = AD5263_RDAC2;
+  if (rdac == 3) cmd = AD5263_RDAC3;
+
+  cmd |= AD5263_RESET;
 
   //  apply the output lines
   cmd = cmd | _O1 | _O2;
diff --git a/libraries/AD5263/AD5263.h b/libraries/AD5263/AD5263.h
index 0a5447d2..2d140950 100644
--- a/libraries/AD5263/AD5263.h
+++ b/libraries/AD5263/AD5263.h
@@ -2,7 +2,7 @@
 //
 //    FILE: AD5263.h
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.1.1
+// VERSION: 0.1.2
 // PURPOSE: Arduino library for I2C digital potentiometer AD5263 and compatibles.
 //    DATE: 2023-10-09
 //     URL: https://github.com/RobTillaart/AD5263
@@ -13,7 +13,7 @@
 #include "Wire.h"
 
 
-#define AD5263_LIB_VERSION    (F("0.1.1"))
+#define AD5263_LIB_VERSION    (F("0.1.2"))
 
 
 #define AD5263_OK             0
@@ -34,6 +34,8 @@ public:
   //  RESET
   uint8_t reset();    //  reset all channels to AD5263_MIDPOINT and O1/O2 to LOW
   uint8_t zeroAll();  //  set all channels to 0 and O1/O2 to LOW
+  uint8_t setAll(const uint8_t value);  //  set all channels to value and O1/O2 to LOW
+
 
   //  READ WRITE
   uint8_t read(const uint8_t rdac);
diff --git a/libraries/AD5263/CHANGELOG.md b/libraries/AD5263/CHANGELOG.md
index d6ec5369..7c97c7d7 100644
--- a/libraries/AD5263/CHANGELOG.md
+++ b/libraries/AD5263/CHANGELOG.md
@@ -6,13 +6,18 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.1.2] - 2023-11-13
+- update readme.md
+- add **setAll(value)**
+- minor edits
+
+
 ## [0.1.1] - 2023-10-11
 - update readme.md
 - investigated compatibility AD5280/82 (not) => clean up code
 - fix library.json
 - add AD5263_I2C_performance.ino
 
-
 ## [0.1.0] - 2023-10-09
 - initial version  (based upon AD524X library)
 
diff --git a/libraries/AD5263/README.md b/libraries/AD5263/README.md
index 43d629ba..8806c7a8 100644
--- a/libraries/AD5263/README.md
+++ b/libraries/AD5263/README.md
@@ -16,8 +16,6 @@ Arduino library for I2C digital potentiometer AD5263 and compatibles.
 
 ## Description
 
-**Experimental** needs testing with hardware.
-
 The AD5263 is a digital potentiometer with 4 channels.
 This digital potentiometers come in 20, 50 and 200 kΩ
 and can be set in 256 steps.
@@ -43,43 +41,44 @@ This library is related to
 
 #### Compatibles
 
-None known so far. 
+None known so far.
 
 
 ## Hardware connection AD5263
 
 Please read datasheet for all details!
 
-|  Pin |   Name    |  Description (short)                   |
-|:----:|:----------|:---------------------------------------|
-|   1  |       B1  |  Resistor Terminal B1.                 |
-|   2  |       A1  |  Resistor Terminal A1 (ADDR = 00).     |
-|   3  |       W1  |  Wiper Terminal W1.                    |
-|   4  |       B3  |  Resistor Terminal B3.                 |
-|   5  |       A3  |  Resistor Terminal A3.                 |
-|   6  |       W3  |  Wiper Terminal W3 (ADDR = 10).        |
-|   7  |      VDD  |  Positive Power Supply                 |
-|   8  |      GND  |  Ground.                               |
-|   9  |      DIS  |  SPI/I2C Select.  SPI = 0, I2C = 1     |
-|  10  |   VLOGIC  |  2.7 - 5.5V Logic Supply Voltage.      |  
-|  11  |  SDI/SDA  |  (SPI data in)    I2C SDA              |
-|  12  |  CLK/SCL  |  Serial Clock     I2C SCL              |
-|  13  |   CS/AD0  |  (SPI Chip Select). I2C address bit 0  |
-|  14  |  RES/AD1  |  (SPI RESET) I2C Address bit 1         |
-|  15  |     SHDN  |  Shutdown. Tie to +5 V if not used.    |
-|  16  |   SDO/O1  |  (SPI data out)   I2C  Output O1       |
-|  17  |    NC/O2  |  (SPI No Connect) I2C Output O2        |
-|  18  |      VSS  |  Negative Power Supply.                |
-|  19  |       W4  |  Wiper Terminal W4 (ADDR = 11).        |
-|  20  |       A4  |  Resistor Terminal A4.                 |
-|  21  |       B4  |  Resistor Terminal B4.                 |
-|  22  |       W2  |  Wiper Terminal W2 (ADDR = 01).        |
-|  23  |       A2  |  Resistor Terminal A2.                 |
-|  24  |       B2  |  Resistor Terminal B2.                 |
+|  Pin  |   Name    |  Description (short)                   |  notes  |
+|:-----:|:----------|:---------------------------------------|:--------|
+|   1   |       B1  |  Resistor Terminal B1.                 |
+|   2   |       A1  |  Resistor Terminal A1    (ADDR = 00)   |
+|   3   |       W1  |  Wiper Terminal W1.                    |
+|   4   |       B3  |  Resistor Terminal B3.                 |
+|   5   |       A3  |  Resistor Terminal A3.                 |
+|   6   |       W3  |  Wiper Terminal W3       (ADDR = 10)   |
+|   7   |      VDD  |  Positive Power Supply                 |
+|   8   |      GND  |  Ground.                               |
+|   9   |      DIS  |  SPI/I2C Select.  SPI = 0, I2C = 1     | connect to VDD |
+|  10   |   VLOGIC  |  2.7 - 5.5V Logic Supply Voltage.      | connect to VDD |
+|  11   |  SDI/SDA  |  (SPI data in)    I2C SDA              |
+|  12   |  CLK/SCL  |  Serial Clock     I2C SCL              |
+|  13   |   CS/AD0  |  (SPI Chip Select). I2C address bit 0  | see Address below |
+|  14   |  RES/AD1  |  (SPI RESET) I2C Address bit 1         | see Address below |
+|  15   |     SHDN  |  Shutdown. Tie to +5 V if not used.    |
+|  16   |   SDO/O1  |  (SPI data out)   I2C  Output O1       |
+|  17   |    NC/O2  |  (SPI No Connect) I2C Output O2        |
+|  18   |      VSS  |  Negative Power Supply.                |
+|  19   |       W4  |  Wiper Terminal W4       (ADDR = 11)   |
+|  20   |       A4  |  Resistor Terminal A4.                 |
+|  21   |       B4  |  Resistor Terminal B4.                 |
+|  22   |       W2  |  Wiper Terminal W2       (ADDR = 01)   |
+|  23   |       A2  |  Resistor Terminal A2.                 |
+|  24   |       B2  |  Resistor Terminal B2.                 |
 
 
-VLOGIC: 
-The logic supply voltage should always be less than or equal to VDD. 
+#### VLOGIC
+
+The logic supply voltage should always be less than or equal to VDD.
 In addition, logic levels must be limited to the logic supply voltage regardless of VDD.
 
 
@@ -101,16 +100,25 @@ Note the AD5263 uses the same range as the AD524X devices.
 
 #### Performance
 
-- TODO: Test with UNO / ESP32 / RP2040 / ...
+Timing in microseconds, writing a new value to device.
 
-|  Speed   |  UNO (us)  |  ESP32 (us)  |
-|:--------:|:----------:|:------------:|
-|  100000  |            |              |
-|  200000  |            |              |
-|  400000  |            |              |
-|  600000  |            |              |
-|  800000  |            |              |
-| 1000000  |            |              |
+|  Speed   |  UNO  |  ESP32  |  RP2040  |  notes  |
+|:--------:|:-----:|:-------:|:--------:|:--------|
+|  100000  |  340  |         |          |
+|  150000  |  240  |         |          |
+|  200000  |  196  |         |          |
+|  250000  |  168  |         |          |
+|  300000  |  148  |         |          |
+|  350000  |  140  |         |          |
+|  400000  |  136  |         |          |  max advised speed  |
+|  450000  |  128  |         |          |
+|  500000  |  124  |         |          |  max working speed  |
+
+
+The Arduino UNO failed to communicate above 500K, therefor
+the max speed advised is 400K
+
+**TODO** Test with ESP32 / RP2040 / ... to fill
 
 
 ## Interface
@@ -147,8 +155,9 @@ rdac should be 0..3.
 #### Misc
 
 - **uint8_t zeroAll()** sets potentiometer's to 0 and I/O to LOW.
-- **uint8_t reset()** sets potentiometer's to midpoint == 127 and I/O to LOW. (startup default)
-- **uint8_t midScaleReset(uint8_t rdac)** resets one potentiometer to midpoint == 127.
+- **uint8_t reset()** sets potentiometer's to midpoint == 128 and O1 and O2 to LOW. (startup default)
+- **uint8_t setAll(uint8_t value)** sets potentiometer's to value and O1 and O2 to LOW.
+- **uint8_t midScaleReset(uint8_t rdac)** resets one potentiometer to midpoint == 128.
 - **uint8_t readBackRegister()** read register back, for debugging.
 
 
@@ -170,9 +179,6 @@ rdac should be 0..3.
 #### Must
 
 - update documentation.
-- get hardware (breakout).
-- test with hardware.
-
 
 #### Should
 
@@ -181,7 +187,9 @@ rdac should be 0..3.
 
 - improve error handling.
 - sync with AD520X / AD524X library
-- optimize footprint **write()** and **midScaleReset()**
+- optimize footprint **write()** versions.
+- optimize **midScaleReset()** = ```return write(rdac, AD5263_MIDPOINT);``` 
+  - is this the same?
 - investigate SPI interface (performance better)
 
 
diff --git a/libraries/AD5263/examples/AD5263_I2C_performance/AD5263_I2C_performance.ino b/libraries/AD5263/examples/AD5263_I2C_performance/AD5263_I2C_performance.ino
index 289ec320..770ae635 100644
--- a/libraries/AD5263/examples/AD5263_I2C_performance/AD5263_I2C_performance.ino
+++ b/libraries/AD5263/examples/AD5263_I2C_performance/AD5263_I2C_performance.ino
@@ -18,14 +18,15 @@ void setup()
   Serial.begin(115200);
   Serial.println();
   Serial.println(__FILE__);
-  Serial.println();
+  Serial.print("AD5263_LIB_VERSION: ");
   Serial.println(AD5263_LIB_VERSION);
+  Serial.println();
 
   Wire.begin();
 
   Serial.println("\nWRITE");
   delay(10);
-  for (uint32_t speed = 100000; speed <= 800000; speed += 100000)
+  for (uint32_t speed = 100000; speed <= 600000; speed += 50000)
   {
     Wire.setClock(speed);
     bool b = AD01.begin();
@@ -45,7 +46,7 @@ void setup()
 
   Serial.println("\nREAD");
   delay(10);
-  for (uint32_t speed = 100000; speed <= 800000; speed += 100000)
+  for (uint32_t speed = 100000; speed <= 600000; speed += 50000)
   {
     Wire.setClock(speed);
     bool b = AD01.begin();
@@ -70,4 +71,3 @@ void loop()
 
 
 //  -- END OF FILE --
-
diff --git a/libraries/AD5263/examples/AD5263_followA0/AD5263_followA0.ino b/libraries/AD5263/examples/AD5263_followA0/AD5263_followA0.ino
index 7fbccb7a..e8e13769 100644
--- a/libraries/AD5263/examples/AD5263_followA0/AD5263_followA0.ino
+++ b/libraries/AD5263/examples/AD5263_followA0/AD5263_followA0.ino
@@ -15,8 +15,9 @@ void setup()
   Serial.begin(115200);
   Serial.println();
   Serial.println(__FILE__);
-  Serial.println();
+  Serial.print("AD5263_LIB_VERSION: ");
   Serial.println(AD5263_LIB_VERSION);
+  Serial.println();
 
   Wire.begin();
   Wire.setClock(400000);
diff --git a/libraries/AD5263/examples/AD5263_isConnected/AD5263_isConnected.ino b/libraries/AD5263/examples/AD5263_isConnected/AD5263_isConnected.ino
index 8e68d35d..a0f7c7b4 100644
--- a/libraries/AD5263/examples/AD5263_isConnected/AD5263_isConnected.ino
+++ b/libraries/AD5263/examples/AD5263_isConnected/AD5263_isConnected.ino
@@ -15,8 +15,9 @@ void setup()
   Serial.begin(115200);
   Serial.println();
   Serial.println(__FILE__);
-  Serial.println();
+  Serial.print("AD5263_LIB_VERSION: ");
   Serial.println(AD5263_LIB_VERSION);
+  Serial.println();
 
   Wire.begin();
   Wire.setClock(400000);
diff --git a/libraries/AD5263/examples/AD5263_midScaleReset/AD5263_midScaleReset.ino b/libraries/AD5263/examples/AD5263_midScaleReset/AD5263_midScaleReset.ino
index d6d383b0..0ca142d8 100644
--- a/libraries/AD5263/examples/AD5263_midScaleReset/AD5263_midScaleReset.ino
+++ b/libraries/AD5263/examples/AD5263_midScaleReset/AD5263_midScaleReset.ino
@@ -15,8 +15,9 @@ void setup()
   Serial.begin(115200);
   Serial.println();
   Serial.println(__FILE__);
-  Serial.println();
+  Serial.print("AD5263_LIB_VERSION: ");
   Serial.println(AD5263_LIB_VERSION);
+  Serial.println();
 
   Wire.begin();
   Wire.setClock(400000);
diff --git a/libraries/AD5263/examples/AD5263_read/AD5263_read.ino b/libraries/AD5263/examples/AD5263_read/AD5263_read.ino
index dbf18a04..18fb1736 100644
--- a/libraries/AD5263/examples/AD5263_read/AD5263_read.ino
+++ b/libraries/AD5263/examples/AD5263_read/AD5263_read.ino
@@ -15,8 +15,9 @@ void setup()
   Serial.begin(115200);
   Serial.println();
   Serial.println(__FILE__);
-  Serial.println();
+  Serial.print("AD5263_LIB_VERSION: ");
   Serial.println(AD5263_LIB_VERSION);
+  Serial.println();
 
   Wire.begin();
   Wire.setClock(400000);
diff --git a/libraries/AD5263/examples/AD5263_readBackRegister/AD5263_readBackRegister.ino b/libraries/AD5263/examples/AD5263_readBackRegister/AD5263_readBackRegister.ino
index 08fe6f7a..aeaef896 100644
--- a/libraries/AD5263/examples/AD5263_readBackRegister/AD5263_readBackRegister.ino
+++ b/libraries/AD5263/examples/AD5263_readBackRegister/AD5263_readBackRegister.ino
@@ -15,8 +15,9 @@ void setup()
   Serial.begin(115200);
   Serial.println();
   Serial.println(__FILE__);
-  Serial.println();
+  Serial.print("AD5263_LIB_VERSION: ");
   Serial.println(AD5263_LIB_VERSION);
+  Serial.println();
 
   Wire.begin();
   Wire.setClock(400000);
diff --git a/libraries/AD5263/examples/AD5263_sawtooth/AD5263_sawtooth.ino b/libraries/AD5263/examples/AD5263_sawtooth/AD5263_sawtooth.ino
index 98b3a943..f30e0e66 100644
--- a/libraries/AD5263/examples/AD5263_sawtooth/AD5263_sawtooth.ino
+++ b/libraries/AD5263/examples/AD5263_sawtooth/AD5263_sawtooth.ino
@@ -15,8 +15,9 @@ void setup()
   Serial.begin(115200);
   Serial.println();
   Serial.println(__FILE__);
-  Serial.println();
+  Serial.print("AD5263_LIB_VERSION: ");
   Serial.println(AD5263_LIB_VERSION);
+  Serial.println();
 
   Wire.begin();
   Wire.setClock(400000);
diff --git a/libraries/AD5263/examples/AD5263_setO/AD5263_setO.ino b/libraries/AD5263/examples/AD5263_setO/AD5263_setO.ino
index 459d74b7..0454bd60 100644
--- a/libraries/AD5263/examples/AD5263_setO/AD5263_setO.ino
+++ b/libraries/AD5263/examples/AD5263_setO/AD5263_setO.ino
@@ -15,12 +15,13 @@ void setup()
   Serial.begin(115200);
   Serial.println();
   Serial.println(__FILE__);
-  Serial.println();
+  Serial.print("AD5263_LIB_VERSION: ");
   Serial.println(AD5263_LIB_VERSION);
+  Serial.println();
 
   Wire.begin();
   Wire.setClock(400000);
-  
+
   bool b = AD01.begin();
   Serial.println(b ? "true" : "false");
   Serial.println(AD01.isConnected());
@@ -48,4 +49,3 @@ void loop()
 
 
 //  -- END OF FILE --
-
diff --git a/libraries/AD5263/examples/AD5263_write/AD5263_write.ino b/libraries/AD5263/examples/AD5263_write/AD5263_write.ino
index 24025178..c171855d 100644
--- a/libraries/AD5263/examples/AD5263_write/AD5263_write.ino
+++ b/libraries/AD5263/examples/AD5263_write/AD5263_write.ino
@@ -7,7 +7,10 @@
 
 #include "AD5263.h"
 
-AD5263 AD01(0x2C);  //  AD0 & AD1 == GND
+//  AD0 == GND
+//  AD1 == GND
+//  DIS == +5V
+AD5263 AD01(0x2C);
 
 
 void setup()
@@ -15,12 +18,13 @@ void setup()
   Serial.begin(115200);
   Serial.println();
   Serial.println(__FILE__);
-  Serial.println();
+  Serial.print("AD5263_LIB_VERSION: ");
   Serial.println(AD5263_LIB_VERSION);
+  Serial.println();
 
   Wire.begin();
   Wire.setClock(400000);
-  
+
   bool b = AD01.begin();
   Serial.println(b ? "true" : "false");
   Serial.println(AD01.isConnected());
@@ -41,10 +45,9 @@ void loop()
       AD01.write(1, val, LOW, LOW);
     }
     Serial.println(val);
-    delay(20);
+    delay(1000);
   }
 }
 
 
 //  -- END OF FILE --
-
diff --git a/libraries/AD5263/keywords.txt b/libraries/AD5263/keywords.txt
index cb0ba926..c0508e3a 100644
--- a/libraries/AD5263/keywords.txt
+++ b/libraries/AD5263/keywords.txt
@@ -5,8 +5,11 @@ AD5263	KEYWORD1
 
 # Methods and Functions (KEYWORD2)
 begin	KEYWORD2
+isConnected	KEYWORD2
+
 reset	KEYWORD2
 zeroAll	KEYWORD2
+setAll	KEYWORD2
 
 read	KEYWORD2
 write	KEYWORD2
@@ -18,6 +21,8 @@ getO2	KEYWORD2
 
 midScaleReset	KEYWORD2
 pmCount	KEYWORD2
+
+readBackRegister	KEYWORD2
 shutDown	KEYWORD2
 
 
diff --git a/libraries/AD5263/library.json b/libraries/AD5263/library.json
index 0d9ddb14..745af9c1 100644
--- a/libraries/AD5263/library.json
+++ b/libraries/AD5263/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/AD5263"
   },
-  "version": "0.1.1",
+  "version": "0.1.2",
   "license": "MIT",
   "frameworks": "*",
   "platforms": "*",
diff --git a/libraries/AD5263/library.properties b/libraries/AD5263/library.properties
index fdd0644f..70dd3c86 100644
--- a/libraries/AD5263/library.properties
+++ b/libraries/AD5263/library.properties
@@ -1,5 +1,5 @@
 name=AD5263
-version=0.1.1
+version=0.1.2
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Library to control digital potentiometer AD5263 and compatibles.