Hack: IKEA Trådfri Motion Sensor for presence control

I have a CC2531, and a Tradfri motion sensor.
What I did to notify HA on motion activities is this:

Pressing the pair button (in the middle) 4 times in a row. The red light on the front side should flash a few times and the turn off. After a few seconds it turns back on and pulsate. When connected, the light turns off.

I’ve got the Tradfri as “unsupported” in the zigbee2mqtt map… Partial success so far


After that I followed this:

  1. Forced the device removal
  2. Stopped zigbee2mqtt on hass.io
  3. Removed the coordinator usb pen from the raspberry pi
  4. Reattached the coordinator
  5. Restarted zigbee2mqtt
  6. Re-paired the E1743 again

And now it works!


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