What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Climate | occupied_heating_setpoint, local_temperature, local_temperature_calibration, system_mode, running_state | heating setpoint, room temperature, local_temperature_calibration, mode, running state | settable |
| Battery | battery | % · 0…100 | read only |
| Timer mode target temp | timer_mode_target_temp | °C · 4…35 | settable |
| Temporary mode duration | temporary_mode_duration | minutes · 0…1440 | settable |
| Temporary mode | temporary_mode_select | boost, timer | settable |
| Child lock | child_lock | — | settable |
| Open window | open_window | — | settable |
| Frost protection temperature | frost_protection_temperature | °C · 4…35 | settable |
| Temperature sensor | temperature_sensor_select | local_temperature, remote_temperature, remote_source_offline | settable |
| External temperature | external_temperature_input | °C · 0…99.9 | settable |
| Idle steps | idle_steps | — | read only |
| Closing steps | closing_steps | — | read only |
| Valve opening limit voltage | valve_opening_limit_voltage | mV | read only |
| Valve closing limit voltage | valve_closing_limit_voltage | mV | read only |
| Valve motor running voltage | valve_motor_running_voltage | mV | read only |
| Valve opening degree | valve_opening_degree | % · 0…100 | settable |
| Valve closing degree | valve_closing_degree | % · 0…100 | settable |
| Temperature accuracy | temperature_accuracy | °C · -1…-0.2 | settable |
| Weekly schedule sunday | weekly_schedule_sunday | — | settable |
| Weekly schedule monday | weekly_schedule_monday | — | settable |
| Weekly schedule tuesday | weekly_schedule_tuesday | — | settable |
| Weekly schedule wednesday | weekly_schedule_wednesday | — | settable |
| Weekly schedule thursday | weekly_schedule_thursday | — | settable |
| Weekly schedule friday | weekly_schedule_friday | — | settable |
| Weekly schedule saturday | weekly_schedule_saturday | — | settable |
| Smart temperature control | smart_temperature_control | — | 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:
{
"occupied_heating_setpoint": 21,
"local_temperature": 20.5,
"system_mode": "heat",
"battery": 87,
"timer_mode_target_temp": 20,
"temporary_mode_duration": 720,
"temporary_mode_select": "boost",
"child_lock": false,
"open_window": false,
"frost_protection_temperature": 20,
"temperature_sensor_select": "local_temperature",
"external_temperature_input": 50,
"idle_steps": 0,
"closing_steps": 0,
"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 '{"temporary_mode_select":"timer"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"child_lock":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"open_window":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.