Some people use Geofence or Activity triggers but it seems that none of them are accurate.Whats the best trigger to use, i need a trigger once the car start moving to launch an app that then connect with an OBD Bluetooth device
I also have the same problem when I leave the car to enter a shop for instance. When I'm back in the car it won't reconnect by itself.For now im using BT when the radio is turned ON, it connect with the phone an it trigger the app i need, but if i keep the car ON and i leave the car and BT out of range, when im back in car it doesn't auto reconnect, have to do it manually.