We have an app that connects to a Bluetooth scanner (Motorola CS3070), its currently connecting and working fine but when the scanner goes to sleep after a certain amount of time because of inactivity the users are complaining/expecting the app to be able to automatically detect that its available again and just connect to it.
From everything I have seen there is no way to get alerted when a device is in range again aside from a Bluetooth LE device which this is not.
Now I could run a thread in a service trying to connect to the device every (n)seconds but that's obviously going to kill the battery of the device and with doze/OS battery optimizations its not always guaranteed to work because it can be killed.
So my question is; is there really no way that I can get notified when a Bluetooth device is in range to connect to it again?
