What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Climate | system_mode, current_heating_setpoint, local_temperature | mode, heating setpoint, room temperature | settable |
| Sensor mode | sensor_mode | room_temperature, floor_temperature, room_with_floor_limit | settable |
| Adaptive start | adaptive_start | — | settable |
| Max temperature limit | max_temperature_limit | °C · 5…35 | settable |
| Min temperature limit | min_temperature_limit | °C · 1…5 | settable |
| Boost | boost | ON, OFF | settable |
| Display brightness | display_brightness | 0…100 | settable |
| Holiday start stop | holiday_start_stop | 0…99 | settable |
| Holiday temperature | holiday_temperature | °C · 5…35 | settable |
| Frost protection | frost_protection | — | settable |
| Switch delay | switch_delay | s · 10…90 | settable |
| Power rating | power_rating | W · 0…4500 | settable |
| Open window active | open_window_active | — | settable |
| Open window sensing time | open_window_sensing_time | minutes · 1…30 | settable |
| Open window drop limit | open_window_drop_limit | C · 2…4 | settable |
| Open window off time | open_window_off_time | minutes · 10…60 | 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:
{
"current_heating_setpoint": 21,
"local_temperature": 20.5,
"system_mode": "heat",
"sensor_mode": "room_temperature",
"adaptive_start": false,
"max_temperature_limit": 20,
"min_temperature_limit": 3,
"boost": "ON",
"display_brightness": 50,
"holiday_start_stop": 50,
"holiday_temperature": 20,
"frost_protection": false,
"switch_delay": 50,
"power_rating": 2250,
"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 '{"sensor_mode":"floor_temperature"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"adaptive_start":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"boost":"OFF"}'
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.