Using a GPIO as a power LED indicator

[ahemberger]

Hi, I'm working on designing a PCB using an ESP32s3 SOC (not a module), and would like an power indicator LED on my board. I could place one near my LDO and be done with it, but it seems nice to have one on a GPIO that would light to show power by default, but could also be used for software functions (e.g. a blink example). I came across this project of yours trying to find a suitable GPIO for this (I think I want one that's pulled up by default when the chip is powered on).

It looks like - in the video shared in the Readme for the project - that you are doing exactly this on one of the PCBs you show, is that right? Can I ask which GPIO you're using (or, more broadly, which would be useful for this purpose)?