Setup

Important: Use a microcontroller with 3.3V logic, such as the ESP32. ❌ Do NOT use microcontrollers like the Arduino UNO, which use 5V logic — this can damage the components.

Important: Use a microcontroller with 3.3V logic, such as the ESP32. ❌ Do NOT use microcontrollers like the Arduino UNO, which use 5V logic — this can damage the components.