Datasheet

Overview

Feather is the new development board from Adafruit, and like it's namesake it is thin, light, and lets you fly! We

designed Feather to be a new standard for portable microcontroller cores.

At the Feather M0's heart is an ATSAMD21G18 ARM Cortex M0 processor, clocked at 48 MHz and at 3.3V logic, the

same one used in the new Arduino Zero. This chip has a whopping 256K of FLASH (8x more than the Atmega328 or

32u4) and 32K of RAM (16x as much)! This chip comes with built in USB so it has USB-to-Serial program & debug

capability built in with no need for an FTDI-like chip.