Datasheet

The brains of the operation here is the ATSAMD21G18 a

Cortex M0 microcontroller. This chip is much more

powerful than the original Circuit Playground. It sits in

the top center, and is what you use to run MakeCode,

CircuitPython or Arduino!

New in Circuit Playground Express, we have added a

new storage chip, called SPI Flash. This is a very, very

small disk drive, only 2 MB large. You can use this in

Arduino or CircuitPython to store files. In CircuitPython

this is where all your code lives, and what you see when

you use the CIRCUITPY drive on your computer

LEDs