diff --git a/libraries/I2C_SCANNER/CHANGELOG.md b/libraries/I2C_SCANNER/CHANGELOG.md
index 514dade9..b01fbee6 100644
--- a/libraries/I2C_SCANNER/CHANGELOG.md
+++ b/libraries/I2C_SCANNER/CHANGELOG.md
@@ -6,11 +6,16 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.3.0] - 2023-12-05
+- remove **begin(sda, scl)** to have less board specific dependencies.
+
+
+----
+
 ## [0.2.1] - 2023-09-24
 - fix Wire1 support ESP32
 - update keywords.txt
 
-
 ## [0.2.0] - 2023-08-21
 - changed interface for **uint16_t ping(address, uint16_t count = 1)**
   - allows multiple tries, for extended diagnosis.
diff --git a/libraries/I2C_SCANNER/I2C_SCANNER.cpp b/libraries/I2C_SCANNER/I2C_SCANNER.cpp
index 25dd639c..74525970 100644
--- a/libraries/I2C_SCANNER/I2C_SCANNER.cpp
+++ b/libraries/I2C_SCANNER/I2C_SCANNER.cpp
@@ -1,7 +1,7 @@
 //
 //    FILE: I2C_SCANNER.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.2.1
+// VERSION: 0.3.0
 //    DATE: 2022-08-29
 // PURPOSE: Arduino class to implement an I2C scanner.
 
@@ -21,26 +21,10 @@ I2C_SCANNER::I2C_SCANNER(TwoWire *wire)
 bool I2C_SCANNER::begin()
 {
   _init();
-  _wire->begin();
   return true;
 }
 
 
-#if defined (ESP8266) || defined(ESP32)
-bool I2C_SCANNER::begin(int dataPin, int clockPin)
-{
-  _init();
-  if ((dataPin < 255) && (clockPin < 255))
-  {
-    _wire->begin(dataPin, clockPin);
-  } else {
-    _wire->begin();
-  }
-  return true;
-}
-#endif
-
-
 //
 //  I2C PORT
 //
diff --git a/libraries/I2C_SCANNER/I2C_SCANNER.h b/libraries/I2C_SCANNER/I2C_SCANNER.h
index a4c9178f..fcc5e178 100644
--- a/libraries/I2C_SCANNER/I2C_SCANNER.h
+++ b/libraries/I2C_SCANNER/I2C_SCANNER.h
@@ -2,7 +2,7 @@
 //
 //    FILE: I2C_SCANNER.h
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.2.1
+// VERSION: 0.3.0
 //    DATE: 2022-08-29
 // PURPOSE: Arduino class to implement an I2C scanner.
 
@@ -10,7 +10,7 @@
 #include "Arduino.h"
 #include "Wire.h"
 
-#define I2C_SCANNER_LIB_VERSION        (F("0.2.1"))
+#define I2C_SCANNER_LIB_VERSION        (F("0.3.0"))
 
 
 class I2C_SCANNER
@@ -21,9 +21,6 @@ public:
 
   //  CONFIGURATION
   bool     begin();
-#if defined (ESP8266) || defined(ESP32)
-  bool     begin(int sda, int scl);
-#endif
 
   //  I2C PORT
   uint8_t  getWirePortCount();
diff --git a/libraries/I2C_SCANNER/README.md b/libraries/I2C_SCANNER/README.md
index 77823002..96d4904f 100644
--- a/libraries/I2C_SCANNER/README.md
+++ b/libraries/I2C_SCANNER/README.md
@@ -33,6 +33,15 @@ The user may use other values for address at his own risk.
 If there is missing functionality in this library, please file an issue.
 
 
+#### 0.3.0 Breaking change
+
+Version 0.3.0 introduced a breaking change.
+You cannot set the pins in **begin()** any more.
+This reduces the dependency of processor dependent Wire implementations.
+The user has to call **Wire.begin()** and can optionally set the Wire pins 
+before calling **begin()**.
+
+
 #### Testing
 
 The library is tested with the following boards:
@@ -63,7 +72,6 @@ Please file an issue if your board does work (or not).
 
 - **I2C_SCANNER(TwoWire \*wire = &Wire)** Constructor with the default Wire I2C bus.
 - **bool begin()** To start the Wire library.
-- **bool begin(int sda, int scl)** idem for ESP32 et al.
 
 
 #### Configuration
diff --git a/libraries/I2C_SCANNER/examples/I2C_scanner_count/I2C_scanner_count.ino b/libraries/I2C_SCANNER/examples/I2C_scanner_count/I2C_scanner_count.ino
index 81e6c475..7a4a4aec 100644
--- a/libraries/I2C_SCANNER/examples/I2C_scanner_count/I2C_scanner_count.ino
+++ b/libraries/I2C_SCANNER/examples/I2C_scanner_count/I2C_scanner_count.ino
@@ -18,6 +18,7 @@ void setup()
   Serial.print("I2C_SCANNER_LIB_VERSION: ");
   Serial.println(I2C_SCANNER_LIB_VERSION);
 
+  Wire.begin();
   scanner.begin();
 
   int ports = scanner.getWirePortCount();
diff --git a/libraries/I2C_SCANNER/examples/I2C_scanner_getWirePortCount/I2C_scanner_getWirePortCount.ino b/libraries/I2C_SCANNER/examples/I2C_scanner_getWirePortCount/I2C_scanner_getWirePortCount.ino
index 5b21df90..24a264b7 100644
--- a/libraries/I2C_SCANNER/examples/I2C_scanner_getWirePortCount/I2C_scanner_getWirePortCount.ino
+++ b/libraries/I2C_SCANNER/examples/I2C_scanner_getWirePortCount/I2C_scanner_getWirePortCount.ino
@@ -18,6 +18,7 @@ void setup()
   Serial.print("I2C_SCANNER_LIB_VERSION: ");
   Serial.println(I2C_SCANNER_LIB_VERSION);
 
+  Wire.begin();
   scanner.begin();
 
   Serial.print("I2C ports: \t");
diff --git a/libraries/I2C_SCANNER/examples/I2C_scanner_minimal/I2C_scanner_minimal.ino b/libraries/I2C_SCANNER/examples/I2C_scanner_minimal/I2C_scanner_minimal.ino
index 1583073f..4379b059 100644
--- a/libraries/I2C_SCANNER/examples/I2C_scanner_minimal/I2C_scanner_minimal.ino
+++ b/libraries/I2C_SCANNER/examples/I2C_scanner_minimal/I2C_scanner_minimal.ino
@@ -18,6 +18,7 @@ void setup()
   Serial.print("I2C_SCANNER_LIB_VERSION: ");
   Serial.println(I2C_SCANNER_LIB_VERSION);
 
+  Wire.begin();
   scanner.begin();
 
   for (int addr = 0; addr < 128; addr++)
diff --git a/libraries/I2C_SCANNER/examples/I2C_scanner_ping_count/I2C_scanner_ping_count.ino b/libraries/I2C_SCANNER/examples/I2C_scanner_ping_count/I2C_scanner_ping_count.ino
index b41c8632..03597bd0 100644
--- a/libraries/I2C_SCANNER/examples/I2C_scanner_ping_count/I2C_scanner_ping_count.ino
+++ b/libraries/I2C_SCANNER/examples/I2C_scanner_ping_count/I2C_scanner_ping_count.ino
@@ -18,6 +18,7 @@ void setup()
   Serial.print("I2C_SCANNER_LIB_VERSION: ");
   Serial.println(I2C_SCANNER_LIB_VERSION);
 
+  Wire.begin();
   scanner.begin();
 
   for (int addr = 0; addr < 128; addr++)
diff --git a/libraries/I2C_SCANNER/examples/I2C_scanner_simple/I2C_scanner_simple.ino b/libraries/I2C_SCANNER/examples/I2C_scanner_simple/I2C_scanner_simple.ino
index c467f117..6d471760 100644
--- a/libraries/I2C_SCANNER/examples/I2C_scanner_simple/I2C_scanner_simple.ino
+++ b/libraries/I2C_SCANNER/examples/I2C_scanner_simple/I2C_scanner_simple.ino
@@ -18,6 +18,7 @@ void setup()
   Serial.print("I2C_SCANNER_LIB_VERSION: ");
   Serial.println(I2C_SCANNER_LIB_VERSION);
 
+  Wire.begin();
   scanner.begin();
 
   for (int addr = 0; addr < 128; addr++)
diff --git a/libraries/I2C_SCANNER/library.json b/libraries/I2C_SCANNER/library.json
index 2a68bdd5..080918e8 100644
--- a/libraries/I2C_SCANNER/library.json
+++ b/libraries/I2C_SCANNER/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/I2C_SCANNER.git"
   },
-  "version": "0.2.1",
+  "version": "0.3.0",
   "license": "MIT",
   "frameworks": "*",
   "platforms": "*",
diff --git a/libraries/I2C_SCANNER/library.properties b/libraries/I2C_SCANNER/library.properties
index be7a4b70..35fdd579 100644
--- a/libraries/I2C_SCANNER/library.properties
+++ b/libraries/I2C_SCANNER/library.properties
@@ -1,5 +1,5 @@
 name=I2C_SCANNER
-version=0.2.1
+version=0.3.0
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino class to implement an I2C scanner.