I'm currently using the thunderboard-react board with a sensor wired up to PWR, GND and PD14. I need to read the voltage on PD14. Is there a simple example demonstrating how to do this?
I think AN0021 is a good application note on how to use the ADC peripheral. But the application note was written for EFM32 MCU and I don't know how to port to your project with stack.
Maybe wireless team could help and already has some example. I moved this post to wireless forum.
Look for examples for the Pearl Gecko MCU, it has the same ADC as the EFR32 so it should be easy to port.