Writing a mobile app to connect to the Bluetooth dongle

[Jeffrey1]

Hi all,

I am trying to write an android app and (later iOS app) that can connect with the Bluetooth dongle and send data through uart, the Bluetooth dongle has been programmed and I can use nRF Connect and nRF Toolbox to connect to the Bluetooth dongle and send data to it.

I am fairly new to android development and I have only did it in Kotlin instead of Java, I want to write my own app and not to use nRF app that is given, however both the nRF Connect and nRF Toolbox are very complex to me, the two simple functions that I want: connect to the Bluetooth dongle and send data through UART, is wrapped around so many things that I am unable to reverse engineer it.

The nRF UART v2 looks simpler but it is deprecated, is there a simpler app that I can use to learn to program with? Or some documentations that I can look at?

[Hung Bui]

Hi Jeffrey, 

The nRF UART v2 is outdated and most likely won't work on newer Android version. For more simpler easy to understand example app, I would suggest to have a look at the nRF Blinky here.
It's to be used with the ble_app_blinky example in the nRF5 SDK.