Just send a simple command over Bluetooth telling the phone which tracks to start or stop. Up to 128 tracks with start/stop command can be done with a 1-byte command, so you don't even need to do fancy command parsing.
Just send a simple command over Bluetooth telling the phone which tracks to start or stop. Up to 128 tracks with start/stop command can be done with a 1-byte command, so you don't even need to do fancy command parsing.