What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| System status code | system_status_code | — | read only |
| Climate | local_temperature, occupied_heating_setpoint, system_mode, pi_heating_demand, running_state | room temperature, heating setpoint, mode, pi_heating_demand, running state | settable |
| Max heat setpoint limit | max_heat_setpoint_limit | °C · 5…35 | settable |
| Min heat setpoint limit | min_heat_setpoint_limit | °C · 5…35 | settable |
| Programming operation mode | programming_operation_mode | setpoint, schedule, schedule_with_preheat, eco | settable |
| Occupied heating setpoint scheduled | occupied_heating_setpoint_scheduled | °C · 5…35 | settable |
| Abs max heat setpoint limit | abs_max_heat_setpoint_limit | °C | read only |
| Abs min heat setpoint limit | abs_min_heat_setpoint_limit | °C | read only |
| Heating system mode | heating_system_mode | auto_system, boiler_heating, default_heating | settable |
| Battery | battery | % · 0…100 | read only |
| Keypad lockout | keypad_lockout | unlock, lock | settable |
| Mounted mode active | mounted_mode_active | — | read only |
| Mounted mode control | mounted_mode_control | — | settable |
| Thermostat orientation | thermostat_orientation | — | settable |
| Viewing direction | viewing_direction | — | settable |
| Heat available | heat_available | — | settable |
| Heat required | heat_required | — | read only |
| Setpoint change source | setpoint_change_source | manual, schedule, externally | read only |
| External measured room sensor | external_measured_room_sensor | -8000…3500 | settable |
| Radiator covered | radiator_covered | — | settable |
| Window open feature | window_open_feature | — | settable |
| Window open internal | window_open_internal | quarantine, closed, hold, open, external_open | read only |
| Window open external | window_open_external | — | settable |
| Day of week | day_of_week | sunday, monday, tuesday, wednesday, thursday, friday, saturday, away_or_vacation | settable |
| Trigger time | trigger_time | — | settable |
| Algorithm scale factor | algorithm_scale_factor | 1…10 | settable |
| Load balancing enable | load_balancing_enable | — | settable |
| Load room mean | load_room_mean | -8000…3600 | settable |
| Load estimate | load_estimate | -8000…3600 | read only |
| Preheat status | preheat_status | — | read only |
| Preheat time | preheat_time | — | read only |
| Adaptation run status | adaptation_run_status | none, in_progress, found, lost, lost_in_progress | read only |
| Adaptation run settings | adaptation_run_settings | — | settable |
| Adaptation run control | adaptation_run_control | idle, initiate_adaptation, cancel_adaptation | settable |
| Regulation setpoint offset | regulation_setpoint_offset | °C · -2.5…2.5 | 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:
{
"local_temperature": 20.5,
"occupied_heating_setpoint": 21,
"system_mode": "heat",
"max_heat_setpoint_limit": 20,
"min_heat_setpoint_limit": 20,
"programming_operation_mode": "setpoint",
"occupied_heating_setpoint_scheduled": 20,
"abs_max_heat_setpoint_limit": 0,
"abs_min_heat_setpoint_limit": 0,
"heating_system_mode": "auto_system",
"battery": 87,
"keypad_lockout": "unlock",
"mounted_mode_active": false,
"mounted_mode_control": false,
"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 '{"programming_operation_mode":"schedule"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"heating_system_mode":"boiler_heating"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"keypad_lockout":"lock"}'
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.