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

Until recently, however, it simply wasn’t a viable choice in the embedded space. That’s begun to change with projects like CircuitPython, and now it’s available on the Teensy 4.0!

“The SAMD21 can run CircuitPython or Arduino very nicely – with existing NeoPixel and our FreeTouch libraries for the capacitive touch input.

Following on from the recent release of CircuitPython 6.1.0-rc.1, Adafruit has today announced the availability of CircuitPython 6.1.0, the latest major revision of CircuitPython, and a new stable ...