fridge-door-sensor

Overview

Monitor fridge door status using an ESP32-S2.

Dependencies

PlatformIO

Build

platformio run

Install

platformio run -t upload

Hardware interface

The state is monitored using GPIO 14, which must be low when the door is closed.

Connect a piezoelectric buzzer to GPIO 3 to play tones on door open/close.

Network interface

Copy src/config.h.example to src/config.h to configure the WiFi network, MQTT hostname and MQTT topic (e.g. sensor/g1/fridge).