GPIO vs GPIOTE usage

[huaminhtuan]

Hi everyone,

I am developing a remote control using nRF52832 chip. My prototype is currently developed in PC10040 board. The IDE is Eclipse Oxygen, and the SDK is S132 v5.0.0.

In my system, there are LED indicators, user buttons and a wake-up button which is used to put system into low-power mode or wake up it. I have a question: As far as I know, the GPIOTE consumes more power than GPIO but GPIO does not support interrupt.

So, with LED indicators, I should use GPIO and with buttons, I should use GPIOTE, isn't it?

[endnode]

Basically YES. GPIO registers allow you to do input/output but if you need to get asynchronous (= unexpected) trigger like button press (resulting in GPIO level LOW/HIGH change) then you need to use GPIOTE.

[huaminhtuan]

Thanks endnode :D