Create main.yml

Author: DevEclipse1

.github/workflows/main.yml

@@ -0,0 +1,33 @@
+name: PlatformIO CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+
+      - name: Install PlatformIO
+        run: pip install platformio
+
+      - name: Build firmware
+        run: pio run
+
+      # Optional: If you have multiple environments (e.g., esp32, esp32-s3, etc.)
+      # you can specify one like:
+      # run: pio run -e esp32dev
+
+      - name: Show firmware size
+        run: pio run -t size