The chip inside is an Atmel SAMD21E18A-U, and is apparently running Adafruit’s CircuitPython platform. This discovery led to further digging, of course.

CircuitPython 8.0.0-rc.1 is now available via the official GitHub release page by following the link below and brings with it a wealth of functionality.

Making CircuitPython Yours With the existential debate over with, the conversation then moved on towards bringing new boards into the CircuitPython family.