diff --git a/.github/workflows/doxygen-gh-pages.yml b/.github/workflows/doxygen-gh-pages.yml
new file mode 100644
index 0000000..b3a60a2
--- /dev/null
+++ b/.github/workflows/doxygen-gh-pages.yml
@@ -0,0 +1,16 @@
+name: Doxygen GitHub Pages Deploy Action
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: DenverCoder1/doxygen-github-pages-action@v1.2.0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          folder: docs/html
+          branch: doxygen
\ No newline at end of file
diff --git a/ArduinoLibrary.cmake b/Arduino.cmake
similarity index 85%
rename from ArduinoLibrary.cmake
rename to Arduino.cmake
index a810f88..11b8206 100644
--- a/ArduinoLibrary.cmake
+++ b/Arduino.cmake
@@ -1,10 +1,10 @@
-# ArduinoLibrary.cmake
+# Arduino.cmake
 # Defines a function to easily add Arduino-style libraries to your CMake project.
 #
 # Example usage for arduino-SAM library from GitHub
-# Place this in your CMakeLists.txt after including ArduinoLibrary.cmake
+# Place this in your CMakeLists.txt after including Arduino.cmake
 #
-# include(${CMAKE_SOURCE_DIR}/ArduinoLibrary.cmake)
+# include(${CMAKE_SOURCE_DIR}/Arduino.cmake)
 # arduino_library(arduino-SAM "https://github.com/pschatzmann/arduino-SAM")
 # target_link_libraries(your_target PRIVATE arduino-SAM)
 
@@ -31,22 +31,32 @@ function(arduino_library LIB_NAME LIB_PATH)
         endif()
         set(LIB_PATH "${CLONE_DIR}")
     endif()
-    set(INC_DIR "${LIB_PATH}/src")
-    file(GLOB SRC_FILES
-        "${LIB_PATH}/src/*.c"
-        "${LIB_PATH}/src/*.cpp"
-    )
+    if(EXISTS "${LIB_PATH}/src")
+        set(INC_DIR "${LIB_PATH}/src")
+        file(GLOB_RECURSE SRC_FILES
+            "${LIB_PATH}/src/*.c"
+            "${LIB_PATH}/src/*.cpp"
+        )
+    else()
+        # Legacy libraries without src folder
+        set(INC_DIR "${LIB_PATH}")
+        file(GLOB_RECURSE SRC_FILES
+            "${LIB_PATH}/*.c"
+            "${LIB_PATH}/*.cpp"
+        )
+    endif()
     # Only create library if there are source files
     if(SRC_FILES)
         add_library(${LIB_NAME} STATIC ${SRC_FILES})
         target_compile_options(${LIB_NAME} PRIVATE -DPROGMEM=)
         # Ensure C files are compiled as C, not C++
         set_target_properties(${LIB_NAME} PROPERTIES LINKER_LANGUAGE C)
+        target_include_directories(${LIB_NAME} PUBLIC ${INC_DIR})
     else()
         # Create a header-only interface library if no source files
         add_library(${LIB_NAME} INTERFACE)
+        target_include_directories(${LIB_NAME} INTERFACE ${INC_DIR})
     endif()
-    target_include_directories(${LIB_NAME} PUBLIC ${INC_DIR})
     # Link arduino_emulator to propagate its include directories
     if(TARGET arduino_emulator)
         if(SRC_FILES)
@@ -54,8 +64,10 @@ function(arduino_library LIB_NAME LIB_PATH)
         else()
             # For interface libraries, use INTERFACE linkage
             target_link_libraries(${LIB_NAME} INTERFACE arduino_emulator)
-        endif()
+        endif()    
+
     endif()
+
 endfunction()
 
 # arduino_sketch(<name> <ino_file> [LIBRARIES <lib1> <lib2> ...] [DEFINITIONS <def1> <def2> ...])
@@ -107,11 +119,7 @@ function(arduino_sketch name ino_file)
         target_compile_definitions(${name} PUBLIC ${ARG_DEFINITIONS})
     endif()
     
-    # Add platform-specific libraries
-    if (USE_RPI)
-        target_link_libraries(${name} gpiod)
-    endif(USE_RPI)
-    
+    # Handle FTDI support if specified
     if (USE_FTDI)
         # Find and link libftdi1
         find_package(PkgConfig REQUIRED)
diff --git a/ArduinoCore-Linux/cores/arduino/HardwareSetupRemote.h b/ArduinoCore-Linux/cores/arduino/HardwareSetupRemote.h
index 0d7e68e..a097252 100644
--- a/ArduinoCore-Linux/cores/arduino/HardwareSetupRemote.h
+++ b/ArduinoCore-Linux/cores/arduino/HardwareSetupRemote.h
@@ -76,6 +76,7 @@ class HardwareSetupRemote : public I2CSource,
 
     // setup global objects
     if (asDefault) {
+      Logger.warning("GPIO, I2C, SPI set up for Remote");
       SPI.setSPI(&spi);
       Wire.setI2C(&i2c);
       GPIO.setGPIO(&gpio);
diff --git a/ArduinoCore-Linux/cores/arduino/WProgram.h b/ArduinoCore-Linux/cores/arduino/WProgram.h
new file mode 100644
index 0000000..4efcac3
--- /dev/null
+++ b/ArduinoCore-Linux/cores/arduino/WProgram.h
@@ -0,0 +1,22 @@
+/*
+	WProgram.h - Legacy Main include file for the Arduino SDK 
+	Copyright (c) 2025 Phil Schatzmann. All right reserved.
+
+	This library is free software; you can redistribute it and/or
+	modify it under the terms of the GNU Lesser General Public
+	License as published by the Free Software Foundation; either
+	version 2.1 of the License, or (at your option) any later version.
+
+	This library is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+	Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public
+	License along with this library; if not, write to the Free Software
+	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+#pragma once
+// This is for compatibility with older Arduino libraries that still include WProgram.h
+// It is recommended to use Arduino.h instead of WProgram.h in new code
+#include "Arduino.h"
diff --git a/ArduinoCore-Linux/cores/rasperry_pi/HardwareGPIO_RPI.h b/ArduinoCore-Linux/cores/rasperry_pi/HardwareGPIO_RPI.h
index e69f90b..e690d85 100644
--- a/ArduinoCore-Linux/cores/rasperry_pi/HardwareGPIO_RPI.h
+++ b/ArduinoCore-Linux/cores/rasperry_pi/HardwareGPIO_RPI.h
@@ -19,6 +19,7 @@
 */
 #ifdef USE_RPI
 #include "HardwareGPIO.h"
+#include <map>
 
 
 namespace arduino {
diff --git a/ArduinoCore-Linux/cores/rasperry_pi/HardwareSetupRPI.h b/ArduinoCore-Linux/cores/rasperry_pi/HardwareSetupRPI.h
index a1b4e6a..53fe60b 100644
--- a/ArduinoCore-Linux/cores/rasperry_pi/HardwareSetupRPI.h
+++ b/ArduinoCore-Linux/cores/rasperry_pi/HardwareSetupRPI.h
@@ -51,6 +51,7 @@ class HardwareSetupRPI : public I2CSource, public SPISource, public GPIOSource {
 
     // define the global hardware interfaces
     if (asDefault) {
+      Logger.warning("GPIO, I2C, SPI set up for Raspberry Pi");
       GPIO.setGPIO(&gpio);
       SPI.setSPI(&spi);
       Wire.setI2C(&i2c);
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3eba3f5..ca2a6ce 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,10 +66,11 @@ install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/ArduinoCore-Linux/cores/arduino/"
 target_compile_features(arduino_emulator PUBLIC cxx_std_17)
 
 # Include Arduino library functions
-include(${CMAKE_CURRENT_SOURCE_DIR}/ArduinoLibrary.cmake)
+include(${CMAKE_CURRENT_SOURCE_DIR}/Arduino.cmake)
 
 if (USE_RPI)
     target_compile_options(arduino_emulator PUBLIC -DUSE_RPI)
+    target_link_libraries(arduino_emulator gpiod)
 endif(USE_RPI)
 
 if (USE_REMOTE)
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 95ce6d2..38d61f6 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -7,6 +7,11 @@ add_subdirectory("serial2")
 add_subdirectory("using-arduino-library")
 add_subdirectory("pwm")
 
+# BME280 Sensor Examples
+arduino_library(SparkFunBME280 "https://github.com/sparkfun/SparkFun_BME280_Arduino_Library" )
+add_subdirectory("bme280-i2c")
+add_subdirectory("bme280-spi")
+
 if(USE_HTTPS)
     add_subdirectory("wifi-secure")
 endif(USE_HTTPS)
diff --git a/examples/bme280-i2c/CMakeLists.txt b/examples/bme280-i2c/CMakeLists.txt
new file mode 100644
index 0000000..0d3a8e8
--- /dev/null
+++ b/examples/bme280-i2c/CMakeLists.txt
@@ -0,0 +1 @@
+arduino_sketch(bme280-i2c bme280-i2c.ino LIBRARIES SparkFunBME280)
diff --git a/examples/bme280-i2c/bme280-i2c.ino b/examples/bme280-i2c/bme280-i2c.ino
new file mode 100644
index 0000000..e1d431f
--- /dev/null
+++ b/examples/bme280-i2c/bme280-i2c.ino
@@ -0,0 +1,32 @@
+// Example sketch for the BME280 combined humidity and pressure sensor
+// Using I2C communication with the SparkFun BME280 Arduino Library
+
+#include <Arduino.h>
+#include <Wire.h>
+#include "SparkFunBME280.h"
+
+BME280 mySensor;
+
+void setup() {
+	Serial.begin(115200);
+	Serial.println("Reading basic values from BME280");
+	// Begin communication over I2C
+	Wire.begin();
+	if (!mySensor.beginI2C(Wire)) {
+		Serial.println("The sensor did not respond. Please check wiring.");
+		while (1);  // Freeze
+	}
+}
+
+void loop() {
+	Serial.print("Humidity: ");
+	Serial.print(mySensor.readFloatHumidity(), 0);
+	Serial.print(" Pressure: ");
+	Serial.print(mySensor.readFloatPressure(), 0);
+	Serial.print(" Alt: ");
+	Serial.print(mySensor.readFloatAltitudeMeters(), 1);
+	Serial.print(" Temp: ");
+	Serial.println(mySensor.readTempC(), 2);
+
+	delay(1000);
+}
diff --git a/examples/bme280-spi/CMakeLists.txt b/examples/bme280-spi/CMakeLists.txt
new file mode 100644
index 0000000..2082640
--- /dev/null
+++ b/examples/bme280-spi/CMakeLists.txt
@@ -0,0 +1 @@
+arduino_sketch(bme280-spi bme280-spi.ino LIBRARIES SparkFunBME280)
diff --git a/examples/bme280-spi/bme280-spi.ino b/examples/bme280-spi/bme280-spi.ino
new file mode 100644
index 0000000..4755f89
--- /dev/null
+++ b/examples/bme280-spi/bme280-spi.ino
@@ -0,0 +1,32 @@
+// Example sketch for the BME280 combined humidity and pressure sensor
+// Using SPI communication with the SparkFun BME280 Arduino Library
+
+#include <Arduino.h>
+#include <SPI.h>
+#include "SparkFunBME280.h"
+
+const int csPin = 13; // Chip select pin for SPI
+BME280 mySensor;
+
+void setup() {
+	Serial.begin(9600);
+	Serial.println("Reading basic values from BME280");
+	// Begin communication over SPI. Use pin 13 as CS.
+	if (!mySensor.beginSPI(csPin)) {
+		Serial.println("The sensor did not respond. Please check wiring.");
+		while (1);  // Freeze
+	}
+}
+
+void loop() {
+	Serial.print("Humidity: ");
+	Serial.print(mySensor.readFloatHumidity(), 0);
+	Serial.print(" Pressure: ");
+	Serial.print(mySensor.readFloatPressure(), 0);
+	Serial.print(" Alt: ");
+	Serial.print(mySensor.readFloatAltitudeMeters(), 1);
+	Serial.print(" Temp: ");
+	Serial.println(mySensor.readTempC(), 2);
+
+	delay(1000);
+}
diff --git a/examples/serial2/serial2.ino b/examples/serial2/serial2.ino
index b8865c0..30196f0 100644
--- a/examples/serial2/serial2.ino
+++ b/examples/serial2/serial2.ino
@@ -7,6 +7,7 @@ void setup() {
 }
 
 void loop() {
+  Serial.println("Hallo world from Serial");
   Serial2.println("Hallo world from Serial2");
   delay(1000); // Wait for 1 second
 }
\ No newline at end of file
diff --git a/examples/using-arduino-library/CMakeLists.txt b/examples/using-arduino-library/CMakeLists.txt
index 5f6f11d..2122218 100644
--- a/examples/using-arduino-library/CMakeLists.txt
+++ b/examples/using-arduino-library/CMakeLists.txt
@@ -4,3 +4,4 @@ arduino_library(sam "https://github.com/pschatzmann/arduino-SAM")
 
 # Use the arduino_sketch function to build the example with additional libraries
 arduino_sketch(using-arduino-library using-arduino-library.ino LIBRARIES sam)
+