nRF52 DK voltage reading and sending via bluetooth

[KYUBEEN]

Hi, I just started nRF52 DK from scratch and downloaded several things informed from infocenter like SEGGER, Keil and SDK, but have no background about these things.

The thing I want to making is reading analog voltage value from any input pin on the DK and send it to my cell phone or any other devices via bluetooth. I saw a SAADC thing here, but not sure this is exactly what I want to do.

Could you let me know is there any example code for this or recommend.

My final goal is to make my custom board with nRF52832 chip (I already bought) and make it read some sensor values. Now Im trying to do this function with DK before making my own custom board. Any other recommendation for making custom board is welcome.

Thank you

[awneil]

KYUBEEN said:

I just started nRF52 DK from scratch

So do you have prior experience with developing for embedded microcontrollers?

The standard approach is to take it one small step at a time - not trying to bite off more than you can chew!

eg,

1. Learn to use the tools & environment - with an example to just blink an LED;
   Practice using the debugger.
2. Move on to sending "Hello World" from the UART to a terminal;
   Keep practising the debugger.
   
3. Add taking ADC readings, and sending via the UART to a terminal;
4. Look at the Nordic UART Service (NUS) - for sending data over BLE
   https://www.nordicsemi.com/DocLib/Content/SDK_Doc/nRF5_SDK/v15-2-0/ble_sdk_app_nus_eval
5. Incorporate your ADC code to send the readings over BLE

All of the SDK examples are documented here:

https://www.nordicsemi.com/DocLib/Content/SDK_Doc/nRF5_SDK/v15-2-0/examples