What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| On / off | state | — | settable |
| Operating mode | operating_mode | schedule, manual, pause | settable |
| Climate | local_temperature, local_temperature_calibration, occupied_heating_setpoint, occupied_cooling_setpoint, system_mode, running_state | room temperature, local_temperature_calibration, heating setpoint, occupied_cooling_setpoint, mode, running state, control_sequence_of_operation, schedule | settable |
| Setpoint change source | setpoint_change_source | manual, schedule, externally | read only |
| Humidity | humidity | % | read only |
| Heater type | heater_type | underfloor_heating, radiator, central_heating, manual_control | settable |
| Valve type | valve_type | normally_closed, normally_open | settable |
| Cable sensor mode | cable_sensor_mode | not_used, cable_sensor_without_regulation, cable_sensor_with_regulation | settable |
| Cable sensor temperature | cable_sensor_temperature | °C | read only |
| Open window detection | window_detection | — | settable |
| Activate boost heating | boost_heating | — | settable |
| Child lock | child_lock | — | settable |
| Display brightness | display_brightness | % · 0…100 | settable |
| Display switch-on duration | display_switch_on_duration | s · 5…30 | settable |
| Activity LED state | activity_led | off, auto, on | settable |
| Error state | error_state | — | read only |
| Humidity alarm led | humidity_alarm_led | — | 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:
{
"state": "ON",
"operating_mode": "schedule",
"local_temperature": 20.5,
"occupied_heating_setpoint": 21,
"system_mode": "heat",
"setpoint_change_source": "manual",
"humidity": 46.2,
"heater_type": "underfloor_heating",
"valve_type": "normally_closed",
"cable_sensor_mode": "not_used",
"cable_sensor_temperature": 0,
"window_detection": false,
"boost_heating": false,
"child_lock": false,
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state":"TOGGLE"}'
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 '{"operating_mode":"manual"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"heater_type":"radiator"}'
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.