RE: SAADC configuration

Marjeris Romero — Thu, 03 Jun 2021 11:10:12 GMT

Hi Tim,

The resistors in the voltage deviders must be big enough so the voltage on the analog input pin is lower than VDD. Also make sure you scale the input so you get the highest possible resolution on the input range, so 1/3 gain if you are using the internal voltage reference.

For firmware and conversion you can take a look at the SAADC example on the nRF5 SDK: https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/nrf_dev_saadc_example.html

Best regards,

Marjeris