Topic: iot projects

Build a Modern MQTT Pager: Revive the Classic Beeper

A DIY project revives the classic pager using an ESP32 microcontroller and MQTT messaging, connecting nostalgic hardware to modern notification systems like Sentry for on-call alerts. The device features customizable audible alerts via RTTTL ringtones and a sleek, 3D-printed translucent case, ble...