This is a new Config app for Android 6.0 and greater for use with Mobilinkd TNC3 and TNC4 devices.
This uses Bluetooth Low Energy (Bluetooth LE or just BLE) instead of Bluetooth Classic (BR/EDR).
The TNC3 and TNC4 are dual-mode devices capable of both BLE and BR/EDR connections. Android, however, does not handle switching between the two modes gracefully. It is strongly recommended that you use one and only one mode. For now, that means the older BR/EDR config app is recommended.
This app was created while adding BLE support to APRSdroid. If you are using or testing BLE connections with APRSdroid, you should use this new BLE config app.