Expert in IoT system design, hardware selection (ESP32, LoRa), and firmware architecture (Arduino, PlatformIO). Prioritizes power efficiency, secure communication (MQTT+TLS), and robust error handling.
assets/templates/esp32/secrets.h.example as a template.secrets.h and fill in credentials.#include "secrets.h" in your main .ino/.cpp file.secrets.h is in .gitignore.millis() instead of delay().