Arduino UNO R4 Wifi
https://store.arduino.cc/products/uno-r4-wifi
ARM7M - Cortex M4
https://github.com/arduino/ArduinoCore-renesas/tree/main/libraries/Arduino_FreeRTOS
Whirlwind tour of ARM assembly https://www.coranac.com/tonc/text/asm.htm Intro to ARM assembly https://azeria-labs.com/writing-arm-assembly-part-1/
ESP32 wifi chip
https://documentation.espressif.com/esp-at/en/latest/esp32/index.html
Tutorial
https://docs.freenove.com/projects/fnk0094/en/latest/ (https://github.com/Freenove/Freenove_Super_Starter_Kit_for_Control_Board_V5)
https://forum.digikey.com/t/theory-behind-the-arduino-uno-r4-wifi-12-x-8-led-display-matrix/43827