5V via Micro-USB / AAA battery pack / 3.7V LiPo

2 devices

Circuit Playground Classic

Dev Board
Circuit Playground Classic

All-in-one ATmega32u4 learning board with 10 NeoPixels, LIS3DH accelerometer, microphone, speaker, light and temperature sensors, and 8 capacitive touch pads in a circular 2-inch form factor.

ATmega32u4 @ 8 MHz2.5KB SRAM32KB
Educational PlatformwearableprototypingStem Education
~$20View

Circuit Playground Express

Dev Board
Circuit Playground Express

All-in-one ATSAMD21 learning board with 10 NeoPixels, LIS3DH accelerometer, MEMS microphone, speaker with class D amp, IR transmit/receive, 7 capacitive touch pads, and 2MB SPI flash for CircuitPython

ATSAMD21G18 ARM Cortex-M0+ @ 48 MHz32KB SRAM256KB + 2MB SPI Flash
Educational PlatformwearableprototypingStem Education
~$25View

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More to explore — popular traits shared by devices with Power: 5V via Micro-USB / AAA battery pack / 3.7V LiPo.

STEM EducationEducational PlatformWearablePrototypingDevelopment Board