Fix compilation errors

Author: mobizt

.github/workflows/compile_arduino_library.yml

@@ -28,10 +28,6 @@ jobs:
           # --- ESP8266 (Requires Custom URL) ---
           - { name: 'D1 Mini', board: 'esp8266:esp8266:d1_mini', platform: 'esp8266:esp8266', url: 'https://arduino.esp8266.com/stable/package_esp8266com_index.json', category: 'standard' }
 
-          # --- STM32 (Isolated/Direct Install - URL Updated) ---
-          # Using the commonly successful GitHub BoardManagerFiles URL format.
-          - { name: 'Nucleo F401RE', board: 'STM32:stm32:Nucleo_F401RE', platform: 'STM32:stm32', url: 'https://github.com/stm32duino/BoardManagerFiles/raw/master/package_stm_index.json', category: 'stm32' }
-
     name: Compile ${{ matrix.board_config.name }}
 
     steps:
@@ -42,32 +38,20 @@ jobs:
       - name: 🛠️ Setup Arduino CLI
         uses: arduino/setup-arduino-cli@v2
 
-      # 2. Add custom platform URLs for ESP and update index
+      # 2. Add custom platform URLs for ESP cores
       - name: 🌐 Configure & Update Index
         run: |
-          # Add URLs for non-standard cores (ESP and STM32)
+          # Only adding reliable ESP URLs
           arduino-cli config add board_manager.additional_urls https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
           arduino-cli config add board_manager.additional_urls https://arduino.esp8266.com/stable/package_esp8266com_index.json
-          arduino-cli config add board_manager.additional_urls https://github.com/stm32duino/BoardManagerFiles/raw/master/package_stm_index.json # <-- STM32 URL ADDED TO GLOBAL CONFIG
-          # Run update once
           arduino-cli core update-index
           
-      # 3. FIX: Install STM32 Platform (Direct Index Access)
-      - name: 📥 Install STM32 Platform
-        if: ${{ matrix.board_config.category == 'stm32' }}
-        run: |
-          # The URL was added to the config in step 2. Now we install the platform.
-          # We use the --additional-urls flag here as a redundancy measure just in case.
-          arduino-cli core install ${{ matrix.board_config.platform }} --additional-urls https://github.com/stm32duino/BoardManagerFiles/raw/master/package_stm_index.json
-
-      # 4. Install All Other Platforms (ESP, Arduino)
-      - name: 📥 Install Other Platforms
-        if: ${{ matrix.board_config.category != 'stm32' }}
+      # 3. Install All Platforms
+      - name: 📥 Install All Platforms
         run: |
-          # Platforms can be installed now that the global index has been updated
           arduino-cli core install ${{ matrix.board_config.platform }}
           
-      # 5. Create the test sketch containing your provided code
+      # 4. Create the test sketch containing your provided code
       - name: 📝 Create test sketch
         run: |
           mkdir -p test_sketch
@@ -89,6 +73,6 @@ jobs:
           }
           EOF
 
-      # 6. Compile the sketch against the FQBN
+      # 5. Compile the sketch against the FQBN
       - name: ⚙️ Compile Sketch for ${{ matrix.board_config.name }}
         run: arduino-cli compile --fqbn ${{ matrix.board_config.board }} --library . test_sketch