Datasheet

Classic vs. Express
Circuit Playground started its life as a board with simple requirements - just work with Arduino IDE and Code.org. But
since it's initial launch in 2015 we've learned a lot and improved the board greatly!
There are TWO Circuit Playgrounds - one Classic and one Express.
The Classic version can run Arduino and Code.org
The Express version can run MakeCode, CircuitPython, Arduino, and Code.org CS Discoveries.
How to tell if you have a Classic
Current Circuit Playground Classic boards have Classic
written on the back lower half
Older Circuit Playground Classics didn't have the word
Classic on the back, but they do have text that says the
chip type, ATmega32U4
How to tell if you have an Express
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