I have been using a P2 window sensor to detect when my post box is opened and closed to trigger a light to flash off and on (or on and off depending on state) so I know when the post arrives.
This device works brilliantly and the battery lasts for ages but I have lost the pairing code and don’t know what to do to pair it to my new HA.
Anyone know what to do in this situation?
Thanks,
Dan