Merge remote-tracking branch 'upstream/main'

Author: ShaTie

.github/workflows/build.yml

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+name: PlatformIO CI
+on:
+  workflow_dispatch:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        env: [esp8266-arduino, esp32-arduino, esp32-idf]
+
+    steps:
+      - uses: actions/checkout@v6
+      
+      - name: Cache PlatformIO
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/pip
+            ~/.platformio/.cache
+          key: ${{ runner.os }}-pio
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+
+      - name: Install PlatformIO
+        run: pip install --upgrade platformio
+
+      - name: Run PlatformIO Build
+        run: pio run -e ${{ matrix.env }}

.gitignore

@@ -1 +1,2 @@
 .vscode
+.pio

platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[platformio]
+name = MideaUART
+description = A library for controlling Midea home appliances using the UART protocol.
+default_envs = 
+	esp8266-arduino
+	esp32-arduino
+	esp32-idf
+	native
+
+[env]
+test_build_src = yes
+lib_deps = 
+; Enable C++20. ESPHome supports C++20 since 2025.7.0 release.
+; https://esphome.io/changelog/2025.7.0/#memory-and-performance-optimizations
+build_unflags =
+    -std=gnu++11
+    -std=gnu++14
+    -std=gnu++17
+    -std=gnu++23
+    -std=gnu++2b
+    -std=gnu++2c
+build_flags =
+    -std=gnu++2a
+    -Os
+
+[env:esp8266-arduino]
+platform = espressif8266
+framework = arduino
+board = esp12e
+build_src_filter = +<../test/entry_arduino.cpp>
+
+[env:esp32-arduino]
+platform = espressif32
+framework = arduino
+board = esp32dev
+build_src_filter = +<../test/entry_arduino.cpp>
+
+[env:esp32-idf]
+platform = espressif32
+framework = espidf
+board = esp32dev
+build_src_filter = +<../test/entry_idf.cpp>
+
+[env:native]
+platform = native
+build_src_filter = +<../test/entry_native.cpp>

test/entry_arduino.cpp

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+#include <Arduino.h>
+void setup() {}
+void loop() {}

test/entry_idf.cpp

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+extern "C" void app_main() {}

test/entry_native.cpp

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+extern "C" int main() {}