Home, building and industrial automation with MQTT: Home Assistant, Tasmota, Zigbee2MQTT, smart energy and agriculture projects on ConnectMQ.
Install Zigbee2MQTT with Docker, configure the coordinator and MQTT connection, pair and rename devices, control them over MQTT and view their states on a dashboard, testing first on a free public broker.
Set up Tasmota's MQTT host, client, topic and full topic from the web UI or console, then switch a smart plug and read its telemetry through broker.connectmq.com.
Configure Z-Wave JS UI's MQTT gateway to publish device values, write them back with /set topics, and reach a cloud broker securely through a small local bridge.
Read your water meter with a reed, inductive or optical sensor and an ESP32, store the meter total safely across reboots, publish litres and flow rate over MQTT, and detect leaks from continuous flow.
Wire an SCD41 CO2 sensor and a PMS5003 particulate sensor to an ESP32, publish readings as JSON over MQTT, and set ventilation alerts when the air gets stale or dusty.
Two proven ways to use a home assistant external MQTT broker: connect the integration straight to a cloud broker over TLS, or bridge the local Mosquitto add-on so devices keep working offline.
How to choose between PIR, mmWave and CO2 sensing, design MQTT topics for rooms and desks, and turn occupancy data into utilization reports and HVAC savings.
Configure the Home Assistant MQTT integration, define sensors and switches in YAML, test the whole flow against broker.connectmq.com and then switch to a private, authenticated broker.
Point Zigbee2MQTT at a TLS-secured cloud MQTT broker so your Zigbee lights, sensors and plugs can be monitored and switched from anywhere, without opening ports on your home router.
Wire an anemometer, rain gauge and BME280 to an ESP32, publish wind, rain, temperature, humidity and pressure as MQTT JSON, then log and chart the data with a short Python script.
Wire a capacitive soil moisture probe to an ESP32, calibrate dry and wet points, publish percent moisture over MQTT with deep sleep, and raise debounced watering alerts.
Build ESP32 leak sensors that publish retained MQTT alarms, and a valve controller that shuts off the water supply automatically and stays latched until someone resets it.
Automate a greenhouse with MQTT: sensors publish climate data, a Node-RED flow decides when to vent, heat or mist using hysteresis, and relay nodes act with local failsafes.
OCPP connects chargers to back-office systems, while MQTT connects them to the rest of your home. Learn how the two fit together, which integration path suits your wallbox, and how to build solar-aware charging on top of MQTT.
A practical architecture for livestock monitoring with IoT sensors: LoRaWAN collars, water trough and barn climate sensors, a clean MQTT topic tree and alerts that reach the farmer before a problem becomes a loss.
Control LED strips and dimmers over MQTT with an ESP32, use JSON commands with smooth transitions, store scenes as retained messages and run schedules from a small Python service.
Build a two-way KNX MQTT bridge with xknx and paho-mqtt that decodes KNX telegrams into JSON, publishes them to a broker and turns MQTT commands back into group writes.
Matter and MQTT are often compared, but they solve different problems. Learn what each does, where they overlap, and how a Home Assistant setup can use Matter for devices and MQTT for everything that needs to travel.
Switch an ESPHome device from the native API to MQTT so Node-RED, Python scripts, dashboards and Home Assistant can all read and control it through one broker.
A practical blueprint for smart parking with IoT: choose bay sensors, design MQTT topics, aggregate free spaces per zone and drive a live browser map over secure WebSocket.
Turn on MQTT in Shelly Gen2 and Gen3 devices, learn exactly which topics they publish and accept, control relays with simple commands or JSON-RPC, and connect them securely to a cloud broker.
How IoT automation works in homes, buildings, farms and energy systems, with a reusable sensor-broker-rules architecture, working Home Assistant and Python examples, and the pitfalls to avoid.
Subscribe to The Things Network's MQTT server, decode LoRaWAN uplinks with a payload formatter, and republish clean sensor JSON into your own topic tree with a short Python bridge.
Connect openHAB to an external MQTT broker, model sensors and switches as generic MQTT things, parse JSON payloads and publish from rules, with a TLS setup ready for production.
Use ChirpStack's built-in MQTT integration to publish decoded LoRaWAN uplinks, then forward them to a cloud MQTT broker with either a Mosquitto bridge or a small Node.js forwarder.
Turn a cheap SDR dongle into a 433 MHz receiver with rtl_433, publish weather stations and door contacts over MQTT, and relay only your own sensors to a private broker over TLS.
Which HVAC signals are worth measuring, how to publish them over MQTT, and how to turn delta-T, filter pressure and runtime into early fault alerts with a cloud broker.
Combine soil moisture readings, a rain forecast and MQTT-controlled valves into an automatic irrigation system that waters only when needed and always shuts off safely.
Zigbee, Z-Wave and Wi-Fi each have a place in a smart home. Compare power, range, mesh behaviour and cost, and see exactly how each radio gets its data onto an MQTT broker.
A practical reference to Tasmota's cmnd, stat and tele topics and the commands you will actually use, with ready-to-send examples for any MQTT client or the ConnectMQ web client.
Create an account, get your broker credentials and connect your first device — no servers to install, patch or scale.
