Does anybody found a method to measure reliably door opening event with Ruuvitag?
After many experiments I couldn’t find a way to do this correctly. In practice the changes in ACC X readings are too low to be visible on chart. It is very easy to measure opening roof window where the angle changes a lot and it’s easy to set an alarm.
I can understand how the accelerometer works, and it could be impossible.
But maybe somebody has found a clever way to do it with grafana? RSSI also changes when the doors are closed but it’s not reliable enough in my case.
Or can maybe somebody tell me how to built in a hall sensor using ruuvi gpio and send the data to Influxdb?