What about using a camera?
[Video] https://storage.googleapis.com/jjchicken-bucket/third_party_camera.mp4
We strongly recommend installing an independent camera near the coop door. It provides an additional way to verify that the door opens and closes as expected, helping cross-check the app's status and improve overall system reliability. If the camera supports alerts and motion detection, enable them to receive warnings and monitor unexpected activity around the coop. Together with the coop door's status notifications, these features provide an extra layer of safety for your birds.