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IKEA LED1842G3 #

Model LED1842G3
Vendor IKEA
Description TRADFRI LED bulb E27 WW clear 250 lumen, dimmable
Supports on/off, brightness
Picture IKEA LED1842G3

Notes #

Pairing #

Factory reset the light bulb (video). After resetting the bulb will automatically connect.

While pairing, keep the bulb close to the CC2531 USB sniffer.

What works is to use (very) short “on’s” and a little bit longer “off’s”. Start with bulb on, then off, and then 6 “on’s”, where you kill the light as soon as the bulb shows signs of turning on.

Device type specific configuration #

How to use device type specific configuration

OTA updates #

This device supports OTA updates, for more information see OTA updates.

Manual Home Assistant configuration #

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

light:
  - platform: "mqtt"
    state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
    availability_topic: "zigbee2mqtt/bridge/state"
    brightness: true
    schema: "json"
    command_topic: "zigbee2mqtt/<FRIENDLY_NAME>/set"
    brightness_scale: 254

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

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