What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Climate | local_temperature, occupied_heating_setpoint, local_temperature_calibration, system_mode, running_state | room temperature, heating setpoint, local_temperature_calibration, mode, running state | settable |
| Child lock | child_lock | — | settable |
| On / off | state | — | settable |
| Power | power | W | read only |
| Current | current | A | read only |
| Energy | energy | kWh | read only |
| Away mode | away_mode | — | settable |
| Window open check | window_open_check | — | settable |
| Window open | window_open | — | read only |
| Backlight level | backlight_level | % · 0…100 | settable |
| Backlight onoff | backlight_onoff | — | settable |
| Sensor mode | sensor_mode | air, floor, both, percent | settable |
| Pi heating demand | pi_heating_demand | % · 0…100 | settable |
| Regulator cycle | regulator_cycle | min · 1…30 | settable |
MQTT: state and commands
Zigbee2MQTT publishes the device state to zigbee2mqtt/my_device (my_device is the name you give the device). An example message:
{
"local_temperature": 20.5,
"occupied_heating_setpoint": 21,
"system_mode": "heat",
"child_lock": false,
"state": "ON",
"power": 12.4,
"current": 0.06,
"energy": 3.21,
"away_mode": false,
"window_open_check": false,
"window_open": false,
"backlight_level": 50,
"backlight_onoff": false,
"sensor_mode": "air",
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"occupied_heating_setpoint":21.5}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"system_mode":"heat"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state":"TOGGLE"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"child_lock":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"away_mode":true}'
Watch the topics live from the browser: MQTT client.
Home Assistant automation example
Zigbee2MQTT creates Home Assistant entities from the device name. If it is called my_device, an automation in automations.yaml can look like this:
- alias: "Cooler at night"
mode: single
triggers:
- trigger: time
at: "23:00:00"
actions:
- action: climate.set_temperature
target:
entity_id: climate.my_device
data:
temperature: 18
Check the YAML: YAML checker.
How to pair it
- In Zigbee2MQTT click Permit join.
- Put the device in pairing mode: usually a long press of the reset button (5–10 s) until the LED blinks; bulbs: switch the power off and on 5–6 times.
- Keep the device close to the coordinator or a router while pairing.
- Give it a clear name: MQTT topics and Home Assistant entities are built from it.
Exact procedure and model notes: the device page in the Zigbee2MQTT docs. No coordinator yet: coordinator picker.