What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Child lock | child_lock | — | settable |
| Mode | system_mode | off, heat | settable |
| Climate | preset, running_state, system_mode, current_heating_setpoint, local_temperature, local_temperature_calibration | preset, running state, mode, heating setpoint, room temperature, local_temperature_calibration | settable |
| Floor temperature | floor_temperature | °C | read only |
| Valve state | valve_state | — | read only |
| Fault alarm | fault_alarm | none, e1, e2, e3, e1_e2, e1_e3, e2_e3, e1_e2_e3 | read only |
| Sensor | sensor | internal, external, both | settable |
| Temperature scale | temperature_scale | celsius, fahrenheit | settable |
| Backlight brightness | backlight_brightness | off, low, medium, high | settable |
| Antifreeze | antifreeze | — | settable |
| Min temperature limit | min_temperature_limit | °C · 5…20 | settable |
| Max temperature limit | max_temperature_limit | °C · 30…70 | settable |
| Deadzone temperature | deadzone_temperature | °C · 0.5…3 | settable |
| Eco temperature | eco_temperature | °C · 5…35 | settable |
| Program mode | program_mode | off, weekend, single_break, no_day_off | settable |
| Factory reset | factory_reset | — | settable |
| Weekday 1 hour | weekday_1_hour | 0…23 | settable |
| Weekday 1 minute | weekday_1_minute | 0…59 | settable |
| Weekday 1 temp | weekday_1_temp | °C · 5…35 | settable |
| Weekday 2 hour | weekday_2_hour | 0…23 | settable |
| Weekday 2 minute | weekday_2_minute | 0…59 | settable |
| Weekday 2 temp | weekday_2_temp | °C · 5…35 | settable |
| Weekday 3 hour | weekday_3_hour | 0…23 | settable |
| Weekday 3 minute | weekday_3_minute | 0…59 | settable |
| Weekday 3 temp | weekday_3_temp | °C · 5…35 | settable |
| Weekday 4 hour | weekday_4_hour | 0…23 | settable |
| Weekday 4 minute | weekday_4_minute | 0…59 | settable |
| Weekday 4 temp | weekday_4_temp | °C · 5…35 | settable |
| Weekday 5 hour | weekday_5_hour | 0…23 | settable |
| Weekday 5 minute | weekday_5_minute | 0…59 | settable |
| Weekday 5 temp | weekday_5_temp | °C · 5…35 | settable |
| Weekday 6 hour | weekday_6_hour | 0…23 | settable |
| Weekday 6 minute | weekday_6_minute | 0…59 | settable |
| Weekday 6 temp | weekday_6_temp | °C · 5…35 | settable |
| Weekend 1 hour | weekend_1_hour | 0…23 | settable |
| Weekend 1 minute | weekend_1_minute | 0…59 | settable |
| Weekend 1 temp | weekend_1_temp | °C · 5…35 | settable |
| Weekend 2 hour | weekend_2_hour | 0…23 | settable |
| Weekend 2 minute | weekend_2_minute | 0…59 | settable |
| Weekend 2 temp | weekend_2_temp | °C · 5…35 | 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:
{
"child_lock": false,
"system_mode": "heat",
"current_heating_setpoint": 21,
"local_temperature": 20.5,
"floor_temperature": 0,
"valve_state": false,
"fault_alarm": "none",
"sensor": "internal",
"temperature_scale": "celsius",
"backlight_brightness": "off",
"antifreeze": false,
"min_temperature_limit": 13,
"max_temperature_limit": 50,
"deadzone_temperature": 2,
"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 '{"system_mode":"heat"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"sensor":"external"}'
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.