Adafruit Feather M0 Basic Proto - ATSAMD21 Cortex M0 _RPI_ARC_BUTTON There's a few extras as

There's a few extras as well

You can set the color/brightness of each LED to 24-bit color (8 bits each red green and blue)

the Feather M0 Adalogger includes a JST connector for 3

Mounted on PCB assembly with 16-pin DIP footprint

Adafruit Feather M0 Basic Proto - ATSAMD21 Cortex M0 _RPI_ARC_BUTTON There's a few extras asAdafruit Feather M0 Basic Proto pairs a powerful 48 MHz ARM Cortex M0 with built in battery charging and onboard prototyping space, making it ideal for portable and breadboard free Arduino projects. Feather is Adafruits portable development board familythin, lightweight, and designed to go wherever your projects take you. Built to be a new standard for mobile microcontroller platforms, Feather combines power, flexibility, and battery support in a