In this video is shown how to implement MQTT Discovery for custom sensors developed with ESP32. It is an alternative to the simpler ESPHome but allows you to enable any type of sensor without any type of configuration in Home Assistant. Source code fo ESP32 on 00:00 Intro 00:18 Schematic 00:48 Home Assistant 02:19 MQTT Discovery 02:57 ESP32 Application Schema 03:32 ESP32 Programming 07:38 Home Assistant Documentation