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Zigbee devices Motion and presence sensors

Tuya ZG-205Z

5.8 GHz human presence sensor. Works with Zigbee2MQTT with no vendor hub or cloud: it pairs with a Zigbee stick and shows up in Home Assistant.

Vendor
Tuya
Model
ZG-205Z
Type
Motion and presence sensors
Power
mains: usually a router that extends the mesh
Firmware updates (OTA)
no

Find it in shops: AliExpress

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What it exposes

FeaturePropertyValuesControl
Presencepresence—read only
Presence statepresence_statenone, presence, peaceful, small_movement, large_movementread only
Target distancetarget_distancem · 0…10read only
Illuminanceilluminancelxread only
Indicatorindicator—settable
None delay timenone_delay_timeSec · 0…28800settable
Move detection maxmove_detection_maxm · 0…10settable
Move detection minmove_detection_minm · 0…10settable
Small move detection maxsmall_move_detection_maxm · 0…6settable
Small move detection minsmall_move_detection_minm · 0…6settable
Breath detection maxbreath_detection_maxm · 0…6settable
Breath detection minbreath_detection_minm · 0…6settable
Move sensitivitymove_sensitivity0…10settable
Breath sensitivitybreath_sensitivity0…10settable
Small move sensitivitysmall_move_sensitivity0…10settable

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:

{
  "presence": false,
  "presence_state": "none",
  "target_distance": 5,
  "illuminance": 120,
  "indicator": false,
  "none_delay_time": 14400,
  "move_detection_max": 5,
  "move_detection_min": 5,
  "small_move_detection_max": 3,
  "small_move_detection_min": 3,
  "breath_detection_max": 3,
  "breath_detection_min": 3,
  "move_sensitivity": 5,
  "breath_sensitivity": 5,
  "linkquality": 120
}

Send commands to zigbee2mqtt/my_device/set:

mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"indicator":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: "Light on motion"
  mode: single
  triggers:
    - trigger: state
      entity_id: binary_sensor.my_device_presence
      to: "on"
  conditions:
    - condition: sun
      after: sunset
  actions:
    - action: light.turn_on
      target:
        entity_id: light.hallway

Check the YAML: YAML checker.

How to pair it

  1. In Zigbee2MQTT click Permit join.
  2. 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.
  3. Keep the device close to the coordinator or a router while pairing.
  4. 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.

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