Hey,
I created a library to simplify working with the Faces Encoder Module.
https://github.com/LennartHennigs/M5FacesEncoder.
You might find it helpful.

Cheers

Hey,
I am using the faces encoder in a project and the I’d like to disable the led ring feedback when you click the encoder. I found the firmware of the encoder on github so there must be a way to flash new code to it.
Do I use the pin header on the inside and an Arduino as an ISP?
Could you provide some more information on the process please?

Cheers.