Hello,
I played around with the UART demo on the nRF52-DK and the belonging Android apps nRF UART v2.0, nRF Connect and nRF Toolbox. On PC side I used a serial console to see what's going on on the UART. Everything works well.
I also have startet do develop my own Android app. Referring to this the following question did arise:
Is there any official or upstream Nordic UART class for Android?
github.com/.../UartService.java
github.com/.../BluetoothLeUart.java
Or does Nordic only have registered the UART UUIDS and the rest of the Android side implementation is left to the Programmer?
Thanks in advance for your answer.