Simple ADC Code

[parman]

Hello,

    I am want to read Analog value from LDR sensor. I am unable to find ADC Input pin in nrf52840 Dongle datasheet but I got it in nrf52840 chip datasheet (page -576) which is - P0.31. But as a newly bid I don't know how to read analog input. Can you give/provide me the code which having an only analog pin declaration, get read value (Please don't include any interrupt base, timer base or any other properties base function).

                                    waiting for your quick support.

                                            Thank you.

   

[ChrtistophAT]

Hi haakonsh,

can you explain where these SAADC examples are in the new SDK v1.9.1 ? Cant find them through VS code "browse example" and I cant find too the directory and the new SDK. Also not possible to downgrade to the SDK where the SAADC Example is described in

The zephyr/samples/driver/adc example is throwing many build errors when built for nrf5340DK cuapp.

I am using nRF5340DK and would like to adc some analog signal from my opamp pcb circuit , so at the end everything is decoupled from any noise (50Hz) causing device.

Many thanks for any help,

Christoph

[haakonsh]

nrfx_saadc.zip

Try this sample. You'll need to create a new build config for the nRF5340DK, but the code should work for both nRF52 and 53 series devices.

[ChrtistophAT]

Thank you haakonsh!