Works with MQTT brokers (Mosquitto), paho-mqtt Python library, and Home Assistant MQTT integration.

Home Assistant MQTT Auto-Discovery

Automatically register IoT devices and sensors with Home Assistant by publishing MQTT discovery configurations.

Overview

MQTT auto-discovery allows devices to automatically appear in Home Assistant without manual YAML configuration. Publish a JSON config to the discovery topic and HA creates the entity automatically.

Discovery Topic Pattern:

homeassistant/{component}/{node_id}/{object_id}/config

State Topic Pattern:

{node_id}/{sensor_type}/state