nRF52832 custom board voltage output control

[KYUBEEN]

Hi guys, Im now developing my custom board with nRF52832 based on the reference schematic below. And using Keil uvision for a programming my board.

The final objective of my project is to give a current stimulation though one of output port with bluetooth control. 

Having searched this in DevZone, I found that there isn't appropriate function for direct voltage or current output in nRF52832 chip.

I think ble_app_blinky example would be help for me, but have no idea it would work because when I practice with my DK board, LED doesn't seem to be connected to nRF52832 chip directly.

So my question is 

1. Is it possible to give desired valued voltage or current output directly only with nRF52832 chip or I need to add additional components except the above schematic

2. I want to control it with Nordic Toolbox or Nordic Blinky application in my phone, which example should I use? (I am a really novice in programming so I can't make without example)

[Jared]

Hi,

1. Depends on the current that you want. The GPIOs have a maximum output current of 14 mA. 
2. The toolbox application is the more "general" one, and is more fitting for custom applications. 

 

I think ble_app_blinky example would be help for me, but have no idea it would work because when I practice with my DK board, LED doesn't seem to be connected to nRF52832 chip directly.

 The example turns LED2 ON when the DK connects to a central. The LED on the DK IS connected to the IC: