Circuit Playground Classic

Circuit Playground Classic Fritzing board illustration — ladyada / Adafruit Industries. Breadboard SVG rasterized from the original Fritzing part and converted to WebP. CC-BY-SA-3.0. Library subparts art credit: MicroSD Card holder, ESP-12E module, and Bluefruit LE (MDBT40) art by PigHixx. Source · CC-BY-SA-3.0

Specifications

Price	19.95 USD
MCU	ATmega32u4
Clock	8 MHz
USB	Micro-USB B
Logic voltage	3.3 V
GPIO	8
ADC	4
PWM	4
Interfaces	I2C, UART, USB
Form factor	Other
Dimensions	~50.6 mm outer diameter
Ecosystems	Arduino

Resources

Sources