ItsyBitsy M4 Express
The central component at the heart of your projects. It runs code, reads and processes sensor data, and controls outputs (lights, motors, speakers, etc.)
The ItsyBitsy M4 Express is a powerful and versatile development board powered by a 32-bit Cortex M4 microcontroller.
For detailed information on the ItsyBitsy M4 Express, refer to Adafruit’s documentation:
This includes information on how to re-install or update CircuitPython, as well as how to switch between Arduino and CircuitPython modes.