Waveshare ESP32-S3-SIM7670G Support for CircuitPython

[wraetz-dev]

Waveshare has a ESP32-S3R2 based board that has a SIM7670G-4G Cellular modem. It seems to share many elements with Waveshare's ESP32-S3-Pico board. They both have 2MB PSRAM and 16MB of flash memory. Wiki page for the ESP32-S3-SIM7670G is here.
The pin mapping appears different from ESP32-S3-Pico but I can't identify the relevant pins from the pinout diagram and schematic provided by Waveshare.

This is a similar request to 8063, and I have read the CircuitPython guide on adding a board--I just can't sort out which pins are which.

I am not affiliated with Waveshare in any way, just a hobbyist trying to make the board work with CircuitPython.

Can anyone point me in the right direction on adding the board?

[tannewt]

The board addition guide is the right place to start. Discord is a good place to ask for help implementing it.