Bluetooth Low Energy Serial Communication

[Donald Gordon]

I am using a Sparkfun Pro nRF52840. I wish to  communicate with it serially. I found the UUIDS it exposed : UART Service = 6E400001-B5A3-F393-E0A9-E50E24DCCA9E TX Characteristic = 6E400002-B5A3-F393-E0A9-E50E24DCCA9E RX Characteristic = 6E400003-B5A3-F393-E0A9-E50E24DCCA9E. These I believe are Nordic UART ids. I've written a Bluetooth classic android app using BroadcastReceivers and the SPP uuid. I'm not sure how to communicate serially via BLE. Any Help/tutorial recommendation would be appreciated.

[awneil]

Donald Gordon said:

These I believe are Nordic UART ids

Indeed:

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v14.0.0/ble_sdk_app_nus_eval.html

Donald Gordon said:

Bluetooth classic

Won't work - it must be BLE.

Donald Gordon said:

I'm not sure how to communicate serially via BLE

At the Android end?

[Donald Gordon]

thanks for the response but I'm still at a crossroads. I'm using Arduino to program my board and then using the serial.write() command. The example suggest using either Keil, nRFgo to reflash my softdevice (S140). Is there another way to do serial communication using the Arduino IDE and the serial.write() as I am unfamiliar with the suggested way to do serial. I'm not new at programming (20 years C, C++, C#, html, etc..) but am a neophyte with respect to Bluetooth, ble and android app programming. 

Any suggestions would be appreciated.

[awneil]

For Arduino questions you'd have to ask on the Arduino forums.

Note that nRFGo is long out of date - use nRF Connect instead. Or a J-Link or other programmer directly.

Android App programming is a whole separate ballpark ...

https://devzone.nordicsemi.com/f/nordic-q-a/51932/how-to-program-app-for-phone-for-nrf52-application-communication-is-possible-through-ses/208759#208759