What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Control mode | control_mode | ext_switch, remote, both | settable |
| Wall switch type | switch_type | unknown, toggle, momentary, rotary, auto_config | settable |
| Switch status | switch_status | -10000…10000 | read only |
| Load detection mode | load_detection_mode | none, first_power_on, every_power_on | settable |
| Load type | load_type | unknown, resistive_capacitive, unknown, detecting | read only |
| Load dimmable | load_dimmable | unknown, dimmable, not_dimmable | read only |
| Power supply mode | power_supply_mode | unknown, no_neutral, with_neutral | read only |
| Light | state, brightness | on / off, brightness | settable |
| Light effect | effect | blink, breathe, okay, channel_change, finish_effect, stop_effect | settable |
| After power loss | power_on_behavior | off, on, toggle, previous | settable |
| Action (button press) | action | on, off, brightness_move_down, brightness_move_up, brightness_stop | 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:
{
"control_mode": "ext_switch",
"switch_type": "unknown",
"switch_status": 0,
"load_detection_mode": "none",
"load_type": "unknown",
"load_dimmable": "unknown",
"power_supply_mode": "unknown",
"state": "ON",
"brightness": 180,
"power_on_behavior": "off",
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state":"ON","brightness":180}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state":"OFF","transition":2}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"control_mode":"remote"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"switch_type":"toggle"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"load_detection_mode":"first_power_on"}'
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: "Light at sunset"
mode: single
triggers:
- trigger: sun
event: sunset
offset: "-00:15:00"
actions:
- action: light.turn_on
target:
entity_id: light.my_device
data:
brightness_pct: 70
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.