The M5 Stack uses ESP 32, and there is an existing library and sample applications to do this, e.g. https://docs.espressif.com/projects/esp-matter/en/latest/esp32/. I have M5 Stack devices, a Core S3 and and a Core 2 AWS. Both have the Gateway H2 module. I'd like to set up a simple demo running on the devices that acts as a light.

• Runs on the M5 Stack Core S3
• With Matter Gateway H2
• Written for the ESP32 chip
• Use the sample at https://github.com/espressif/esp-matter/blob/78d3def6/examples/light/README.md
• Use the guide from https://docs.espressif.com/projects/esp-matter/en/latest/esp32/
• Written using ESP-IDF toolkit
• Create a new branch for the work
• Put it in the folder m5stack/matter/light
• The S3 doesn't have fancy lights, so just draw a rectangle on the screen. Light grey for off. Blue for on.
• Only needs to be an On/Off light, i.e. device type 0x100 On/Off Light (but use whatever is in the light example if it is easier).
• Needs to be able to commission via Bluetooth to join my Matter + Thread network (this should be standard functionality)
• Use the M5Stack H2 Gateway for the network functions, i.e. to join the Thread network
• Use the ESP Matter library for the Matter functions
• Need to be able to connect it to my Matter network -- I use both Google and Home Assistant. Normally I commission to Google first, and once that is work I share it to HA.
• When I commission to Google Home, I should be able to send it on/off commands, and the rectangle on the M5 S3 change accordingly.