**Post here if:** You are coding for bare-metal or embedded systems like Arduino, ESP32, ESP8266, STM32, or M5Stack devices. **Topics include:** Writing C++ in Arduino IDE, flashing firmware, working with sensors (DHT22, BMP280), I2C/SPI communication, and building physical tools (like an M5Stack Stick C3 WiFi Ducky). *Note: If you are just writing a Python script to run on a Raspberry Pi, use the Software & Coding channel.*
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