diff --git a/libraries/PCA9685_RT/CHANGELOG.md b/libraries/PCA9685_RT/CHANGELOG.md
index 75d74147..060d9295 100644
--- a/libraries/PCA9685_RT/CHANGELOG.md
+++ b/libraries/PCA9685_RT/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/).
 
 
+## [0.7.1] - 2024-01-05
+- minor edits examples
+- fix version nr in .cpp
+
+
 ## [0.7.0] - 2023-12-21
 - fix #25, support for Arduino ESP32 S3 - breaking change
 - update examples
diff --git a/libraries/PCA9685_RT/LICENSE b/libraries/PCA9685_RT/LICENSE
index eae2a1a7..cef01c5e 100644
--- a/libraries/PCA9685_RT/LICENSE
+++ b/libraries/PCA9685_RT/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2016-2023 Rob Tillaart
+Copyright (c) 2016-2024 Rob Tillaart
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/libraries/PCA9685_RT/PCA9685.cpp b/libraries/PCA9685_RT/PCA9685.cpp
index 68be69fa..d69a9f4d 100644
--- a/libraries/PCA9685_RT/PCA9685.cpp
+++ b/libraries/PCA9685_RT/PCA9685.cpp
@@ -2,7 +2,7 @@
 //    FILE: PCA9685.cpp
 //  AUTHOR: Rob Tillaart
 //    DATE: 24-apr-2016
-// VERSION: 0.6.0
+// VERSION: 0.7.1
 // PURPOSE: Arduino library for PCA9685 I2C LED driver, 16 channel PWM, 12 bit.
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 
diff --git a/libraries/PCA9685_RT/PCA9685.h b/libraries/PCA9685_RT/PCA9685.h
index 02c155c4..b2abb3ce 100644
--- a/libraries/PCA9685_RT/PCA9685.h
+++ b/libraries/PCA9685_RT/PCA9685.h
@@ -3,7 +3,7 @@
 //    FILE: PCA9685.h
 //  AUTHOR: Rob Tillaart
 //    DATE: 24-apr-2016
-// VERSION: 0.7.0
+// VERSION: 0.7.1
 // 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("0.7.0"))
+#define PCA9685_LIB_VERSION         (F("0.7.1"))
 
 // ERROR CODES
 #define PCA9685_OK                  0x00
diff --git a/libraries/PCA9685_RT/examples/PCA9685_OE_control/PCA9685_OE_control.ino b/libraries/PCA9685_RT/examples/PCA9685_OE_control/PCA9685_OE_control.ino
index 509c1109..70f712c0 100644
--- a/libraries/PCA9685_RT/examples/PCA9685_OE_control/PCA9685_OE_control.ino
+++ b/libraries/PCA9685_RT/examples/PCA9685_OE_control/PCA9685_OE_control.ino
@@ -5,8 +5,6 @@
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 
 
-#include "Arduino.h"
-#include "Wire.h"
 #include "PCA9685.h"
 
 
@@ -16,6 +14,7 @@ PCA9685 ledArray(0x20);
 void setup()
 {
   Serial.begin(115200);
+  Serial.println(__FILE__);
   Serial.print("PCA9685_LIB_VERSION: ");
   Serial.println(PCA9685_LIB_VERSION);
   Serial.println();
diff --git a/libraries/PCA9685_RT/examples/PCA9685_allOFF_test/PCA9685_allOFF_test.ino b/libraries/PCA9685_RT/examples/PCA9685_allOFF_test/PCA9685_allOFF_test.ino
index fca1840e..650caf6d 100644
--- a/libraries/PCA9685_RT/examples/PCA9685_allOFF_test/PCA9685_allOFF_test.ino
+++ b/libraries/PCA9685_RT/examples/PCA9685_allOFF_test/PCA9685_allOFF_test.ino
@@ -1,7 +1,7 @@
 //
 //    FILE: PCA9685_allOFF_test.ino
 //  AUTHOR: Rob Tillaart
-// PUPROSE: test PCA9685 library
+// PURPOSE: test PCA9685 library
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 //
 //  sets all channels to a PWM
@@ -20,7 +20,7 @@ void setup()
 {
   Serial.begin(115200);
   Serial.println(__FILE__);
-  Serial.print("PCA9685 LIB version: ");
+  Serial.print("PCA9685_LIB_VERSION: ");
   Serial.println(PCA9685_LIB_VERSION);
   Serial.println();
 
diff --git a/libraries/PCA9685_RT/examples/PCA9685_digitalWrite_test/PCA9685_digitalWrite_test.ino b/libraries/PCA9685_RT/examples/PCA9685_digitalWrite_test/PCA9685_digitalWrite_test.ino
index 89294101..2e85110c 100644
--- a/libraries/PCA9685_RT/examples/PCA9685_digitalWrite_test/PCA9685_digitalWrite_test.ino
+++ b/libraries/PCA9685_RT/examples/PCA9685_digitalWrite_test/PCA9685_digitalWrite_test.ino
@@ -1,7 +1,7 @@
 //
 //    FILE: PCA9685_digitalWrite_test.ino
 //  AUTHOR: Rob Tillaart
-// PUPROSE: test PCA9685 library
+// PURPOSE: test PCA9685 library
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 //
 //  sets one channel to max PWM 0..4095
@@ -9,8 +9,6 @@
 //  to see the frequency of the PWM
 
 
-#include "Arduino.h"
-#include "Wire.h"
 #include "PCA9685.h"
 
 
@@ -25,7 +23,7 @@ void setup()
 {
   Serial.begin(115200);
   Serial.println(__FILE__);
-  Serial.print("PCA9685 LIB version: ");
+  Serial.print("PCA9685_LIB_VERSION: ");
   Serial.println(PCA9685_LIB_VERSION);
   Serial.println();
 
@@ -54,7 +52,7 @@ void loop()
   if (now - lastTime >= 1000)
   {
     lastTime = now;
-    // make a copy
+    //  make a copy
     noInterrupts();
     uint16_t t = count;
     count = 0;
diff --git a/libraries/PCA9685_RT/examples/PCA9685_maxPWM_test/PCA9685_maxPWM_test.ino b/libraries/PCA9685_RT/examples/PCA9685_maxPWM_test/PCA9685_maxPWM_test.ino
index 171514cd..65b4e4b8 100644
--- a/libraries/PCA9685_RT/examples/PCA9685_maxPWM_test/PCA9685_maxPWM_test.ino
+++ b/libraries/PCA9685_RT/examples/PCA9685_maxPWM_test/PCA9685_maxPWM_test.ino
@@ -1,7 +1,7 @@
 //
 //    FILE: PCA9685_maxPWM_test.ino
 //  AUTHOR: Rob Tillaart
-// PUPROSE: test PCA9685 library
+// PURPOSE: test PCA9685 library
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 //
 //  sets one channel to max PWM 0..4095
@@ -9,8 +9,6 @@
 //  to see the frequency of the PWM
 
 
-#include "Arduino.h"
-#include "Wire.h"
 #include "PCA9685.h"
 
 
@@ -24,7 +22,7 @@ void setup()
 {
   Serial.begin(115200);
   Serial.println(__FILE__);
-  Serial.print("PCA9685 LIB version: ");
+  Serial.print("PCA9685_LIB_VERSION: ");
   Serial.println(PCA9685_LIB_VERSION);
   Serial.println();
 
diff --git a/libraries/PCA9685_RT/examples/PCA9685_setFrequency_offset/PCA9685_setFrequency_offset.ino b/libraries/PCA9685_RT/examples/PCA9685_setFrequency_offset/PCA9685_setFrequency_offset.ino
index 5e0c004f..99afff9a 100644
--- a/libraries/PCA9685_RT/examples/PCA9685_setFrequency_offset/PCA9685_setFrequency_offset.ino
+++ b/libraries/PCA9685_RT/examples/PCA9685_setFrequency_offset/PCA9685_setFrequency_offset.ino
@@ -1,7 +1,7 @@
 //
 //    FILE: PCA9685_setFrequency_offset.ino
 //  AUTHOR: Rob Tillaart
-// PUPROSE: test PCA9685 library
+// PURPOSE: test PCA9685 library
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 //
 //  This sketch is to determine the offset needed to get te best matching
@@ -14,8 +14,6 @@
 //  Note: the higher the frequency, the more inaccurate the real frequency,
 
 
-#include "Arduino.h"
-#include "Wire.h"
 #include "PCA9685.h"
 
 
@@ -35,7 +33,7 @@ void setup()
 {
   Serial.begin(115200);
   Serial.println(__FILE__);
-  Serial.print("PCA9685 LIB version: ");
+  Serial.print("PCA9685_LIB_VERSION: ");
   Serial.println(PCA9685_LIB_VERSION);
   Serial.println();
 
diff --git a/libraries/PCA9685_RT/examples/PCA9685_setFrequency_test/PCA9685_setFrequency_test.ino b/libraries/PCA9685_RT/examples/PCA9685_setFrequency_test/PCA9685_setFrequency_test.ino
index 84af477f..dd8821f3 100644
--- a/libraries/PCA9685_RT/examples/PCA9685_setFrequency_test/PCA9685_setFrequency_test.ino
+++ b/libraries/PCA9685_RT/examples/PCA9685_setFrequency_test/PCA9685_setFrequency_test.ino
@@ -1,7 +1,7 @@
 //
 //    FILE: PCA9685_setFrequency_test.ino
 //  AUTHOR: Rob Tillaart
-// PUPROSE: test PCA9685 library
+// PURPOSE: test PCA9685 library
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 //
 //  sets one channel to max PWM 0..4095
@@ -9,8 +9,6 @@
 //  to see the frequency of the PWM
 
 
-#include "Arduino.h"
-#include "Wire.h"
 #include "PCA9685.h"
 
 
@@ -28,7 +26,7 @@ void setup()
 {
   Serial.begin(115200);
   Serial.println(__FILE__);
-  Serial.print("PCA9685 LIB version: ");
+  Serial.print("PCA9685_LIB_VERSION: ");
   Serial.println(PCA9685_LIB_VERSION);
   Serial.println();
 
diff --git a/libraries/PCA9685_RT/examples/PCA9685_test01/PCA9685_test01.ino b/libraries/PCA9685_RT/examples/PCA9685_test01/PCA9685_test01.ino
index d2c83c0c..eb6df9e2 100644
--- a/libraries/PCA9685_RT/examples/PCA9685_test01/PCA9685_test01.ino
+++ b/libraries/PCA9685_RT/examples/PCA9685_test01/PCA9685_test01.ino
@@ -1,11 +1,10 @@
 //
 //    FILE: PCA9685_test01.ino
 //  AUTHOR: Rob Tillaart
-// PUPROSE: test PCA9685 library
+// PURPOSE: test PCA9685 library
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 
-#include "Arduino.h"
-#include "Wire.h"
+
 #include "PCA9685.h"
 
 
@@ -16,7 +15,7 @@ void setup()
 {
   Serial.begin(115200);
   Serial.println(__FILE__);
-  Serial.print("PCA9685 LIB version: ");
+  Serial.print("PCA9685_LIB_VERSION: ");
   Serial.println(PCA9685_LIB_VERSION);
   Serial.println();
 
diff --git a/libraries/PCA9685_RT/examples/PCA9685_test02/PCA9685_test02.ino b/libraries/PCA9685_RT/examples/PCA9685_test02/PCA9685_test02.ino
index 3f8b7b04..ab1cb84a 100644
--- a/libraries/PCA9685_RT/examples/PCA9685_test02/PCA9685_test02.ino
+++ b/libraries/PCA9685_RT/examples/PCA9685_test02/PCA9685_test02.ino
@@ -1,12 +1,10 @@
 //
 //    FILE: PCA9685_test02.ino
 //  AUTHOR: Rob Tillaart
-// PUPROSE: test PCA9685 library
+// PURPOSE: test PCA9685 library
 //     URL: https://github.com/RobTillaart/PCA9685_RT
 
 
-#include "Arduino.h"
-#include "Wire.h"
 #include "PCA9685.h"
 
 
@@ -17,7 +15,7 @@ void setup()
 {
   Serial.begin(115200);
   Serial.println(__FILE__);
-  Serial.print("PCA9685 LIB version: ");
+  Serial.print("PCA9685_LIB_VERSION: ");
   Serial.println(PCA9685_LIB_VERSION);
   Serial.println();
 
diff --git a/libraries/PCA9685_RT/library.json b/libraries/PCA9685_RT/library.json
index cc5ba114..9f890275 100644
--- a/libraries/PCA9685_RT/library.json
+++ b/libraries/PCA9685_RT/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/PCA9685_RT.git"
   },
-  "version": "0.7.0",
+  "version": "0.7.1",
   "license": "MIT",
   "frameworks": "*",
   "platforms": "*",
diff --git a/libraries/PCA9685_RT/library.properties b/libraries/PCA9685_RT/library.properties
index 2dcd5e68..213c6e37 100644
--- a/libraries/PCA9685_RT/library.properties
+++ b/libraries/PCA9685_RT/library.properties
@@ -1,5 +1,5 @@
 name=PCA9685_RT
-version=0.7.0
+version=0.7.1
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for PCA9685 I2C LED driver, 16 channel PWM, 12 bit.
diff --git a/libraries/PCA9685_RT/test/unit_test_001.cpp b/libraries/PCA9685_RT/test/unit_test_001.cpp
index 52267581..16149548 100644
--- a/libraries/PCA9685_RT/test/unit_test_001.cpp
+++ b/libraries/PCA9685_RT/test/unit_test_001.cpp
@@ -49,7 +49,7 @@ unittest_teardown()
 
 unittest(test_constants)
 {
-  fprintf(stderr, "\nregisterss");
+  fprintf(stderr, "\n registers");
   assertEqual(PCA9685_MODE1         , 0x00);
   assertEqual(PCA9685_MODE2         , 0x01);
   assertEqual(PCA9685_ALLCALLADR    , 0x05);
@@ -64,7 +64,7 @@ unittest(test_constants)
   assertEqual(PCA9685_TESTMODE      , 0xFF);
 
 
-  fprintf(stderr, "\nerrorcodes");
+  fprintf(stderr, "\n error codes");
   assertEqual(PCA9685_OK         , 0x00);
   assertEqual(PCA9685_ERROR      , 0xFF);
   assertEqual(PCA9685_ERR_CHANNEL, 0xFE);