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Bitron 902010/24 #

Model 902010/24
Vendor Bitron
Description Optical smoke detector (hardware version v1)
Exposes smoke, battery_low, tamper, warning, linkquality
Picture Bitron 902010/24

Pairing #

Pair the Bitron 902010/24 Smoke Detector to Zigbee2MQTT by holding it close to the coordinator and pressing the button for about 10 seconds. The indicator light will flash red once and/or the alarm will beep twice to indicate it is in pairing mode. The Bitron 902010/24 Smoke Detector should now be visible in the Zigbee2MQTT Devices overview.

Notes #

Activating the alert #

Activating the alert is done by sending a JSON

{"warning":{"duration":1,"mode":"burglar","strobe":false,"level":"high"}}

This gives an audible alert with the LED flashing of around 2 seconds duration.

If you set strobe to true it’ll not work. Level “low” does not give a sound, the other valid levels don’t make a difference in loudness. There doesn’t not seem to be a difference between different modes.

The device seems to be a little bit picky about switching off - set both “mode”:”none” and “duration”:1 - but to another value than before.

Exposes #

Smoke (binary) #

Indicates whether the device detected smoke. Value can be found in the published state on the smoke property. It’s not possible to read (/get) or write (/set) this value. If value equals true smoke is ON, if false OFF.

Battery_low (binary) #

Indicates if the battery of this device is almost empty. Value can be found in the published state on the battery_low property. It’s not possible to read (/get) or write (/set) this value. If value equals true battery_low is ON, if false OFF.

Tamper (binary) #

Indicates whether the device is tampered. Value can be found in the published state on the tamper property. It’s not possible to read (/get) or write (/set) this value. If value equals true tamper is ON, if false OFF.

Warning (composite) #

Can be set by publishing to zigbee2mqtt/FRIENDLY_NAME/set with payload {"warning": {"mode": VALUE, "level": VALUE, "strobe": VALUE, "duration": VALUE}}

Linkquality (numeric) #

Link quality (signal strength). Value can be found in the published state on the linkquality property. It’s not possible to read (/get) or write (/set) this value. The minimal value is 0 and the maximum value is 255. The unit of this value is lqi.

Manual Home Assistant configuration #

Although Home Assistant integration through MQTT discovery is preferred, manual integration is possible with the following configuration:

binary_sensor:
  - platform: "mqtt"
    state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
    availability_topic: "zigbee2mqtt/bridge/state"
    value_template: "{{ value_json.smoke }}"
    payload_on: true
    payload_off: false
    device_class: "smoke"

binary_sensor:
  - platform: "mqtt"
    state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
    availability_topic: "zigbee2mqtt/bridge/state"
    value_template: "{{ value_json.battery_low }}"
    payload_on: true
    payload_off: false
    device_class: "battery"

binary_sensor:
  - platform: "mqtt"
    state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
    availability_topic: "zigbee2mqtt/bridge/state"
    value_template: "{{ value_json.tamper }}"
    payload_on: true
    payload_off: false

sensor:
  - platform: "mqtt"
    state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
    availability_topic: "zigbee2mqtt/bridge/state"
    value_template: "{{ value_json.linkquality }}"
    unit_of_measurement: "lqi"
    enabled_by_default: false
    icon: "mdi:signal"
    state_class: "measurement"