Multichannel ADC readings with nRF52DK

[nerdybee]

I'm trying to implement a really simple script to sample voltage values from 5 different analog pins on my NRF52832 DK (using Segger at the moment). I found the SAADC example, as well as the following discussions:

First post 

Second post  

But it's not quite clear to me still how to implement the code with my device. Eventually, I'll want it to be transmitted over BLE, but I'm new to all of this so trying to build up.

Any help would be greatly appreciated!!!

[Karl Ylvisaker]

Hello,

First, could you tell me which SDK you are working with - the nRF5 SDK, or the nRF Connect SDK?
If you are starting a new project, or completely new to Nordic development I would suggest that you start out with the nRF Connect SDK since this is where out active development is happening.

Additionally, what sampling frequency will you be using?

Best regards,
Karl

[nerdybee]

Hi Karl,

Thank you for your reply! I believe I am using the nRF Connect SDK. I am hoping to only get 1 reading every 5 minutes or so, so the frequency won't be a huge constrain. Do you have any starting point you recommend within the nRF Connect SDK environment?

Thank you again!

[Karl Ylvisaker]

Hello again,

nerdybee said:

Thank you for your reply!

No problem at all, I am happy to help! :) 

nerdybee said:

I believe I am using the nRF Connect SDK. I am hoping to only get 1 reading every 5 minutes or so, so the frequency won't be a huge constrain. Do you have any starting point you recommend within the nRF Connect SDK environment?

You could take a look at this example as a reference, it demonstrates pretty much exactly the functionality you describe. If you are starting out with the nRF Connect SDK I would recommend that you have a look at the DevZone Academy for the nRF Connect Fundamentals course.

Please do not hesitate to ask if you should encounter any issues or questions along the way!

Best regards,
Karl