What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Low battery | battery_low | — | read only |
| Child lock | child_lock | — | settable |
| Open window | open_window | — | settable |
| Open window temperature | open_window_temperature | °C · 5…30 | settable |
| Comfort temperature | comfort_temperature | °C · 5…30 | settable |
| Eco temperature | eco_temperature | °C · 5…30 | settable |
| Climate | preset, local_temperature_calibration, local_temperature, current_heating_setpoint, system_mode | preset, local_temperature_calibration, room temperature, heating setpoint, mode | settable |
| Heating stop | heating_stop | — | settable |
| Frost protection | frost_protection | — | settable |
| Boost timeset countdown | boost_timeset_countdown | s · 0…465 | settable |
| Holiday temperature | holiday_temperature | °C · 5…30 | settable |
| Holiday start stop | holiday_start_stop | — | settable |
| Working day | working_day | mon_sun, mon_fri+sat+sun, separate | settable |
| Schedule | schedule | — | read only |
| Online | online | — | settable |
| Error status | error_status | — | read only |
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:
{
"battery_low": false,
"child_lock": false,
"open_window": false,
"open_window_temperature": 18,
"comfort_temperature": 18,
"eco_temperature": 18,
"local_temperature": 20.5,
"current_heating_setpoint": 21,
"system_mode": "heat",
"heating_stop": false,
"frost_protection": false,
"boost_timeset_countdown": 233,
"holiday_temperature": 18,
"working_day": "mon_sun",
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"current_heating_setpoint":21.5}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"system_mode":"heat"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"child_lock":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"open_window":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"heating_stop":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.