3857: Adafruit Feather M4 Express - ATSAMD51 Cortex M4


It's what you've been waiting for, the Feather M4 Express featuring ATSAMD51. This Feather is fast like a swift, smart like an owl, strong like a ox-bird (it's half ox, half bird, OK?) This feather is powered by our new favorite chip, the ATSAMD51J19 - with its 120MHz Cortex M4 with floating point support and 512KB Flash and 192KB RAM. Your code will zig and zag and zoom, and with a bunch of extra peripherals for support, this will for sure be your favorite new chipset.

And best of all, it's a Feather - so you know it will work with all our FeatherWings! What a great way to quickly get up and running.

The most exciting part of the Feather M4 is that while you can use it with the Arduino IDE - and it's bonkers fast when you do, we are shipping it with CircuitPython on board. When you plug it in, it will show up as a very small disk drive with main.py on it. Edit main.py with your favorite text editor to build your project using Python, the most popular programming language. No installs, IDE or compiler needed, so you can use it on any computer, even ChromeBooks or computers you can't install software on. When you're done, unplug the Feather and your code will go with you.


Manufacturer Adafruit Industries LLC
Category Open Source MCU Platforms
Eval Board Part Number 1528-2648-ND
Eval Board Supplier Adafruit Industries LLC
IDE Arduino IDE, with Software Add-on
Speed 120 MHz
Bits 32 Bit
Memory, Flash/RAM 512 kB + 2MB / 192 kB
Digital I/O 21 I/O, 16 PWM
Interface I²C x1
I²S x1
SPI x1
USB Device
Analog Outputs (DACs) 2 x 12 Bit
Analog Inputs (ADCs) 6 x 12 Bit
DMA Channels 32
Features 1 x NeoPixel Output
Battery Charger, LiPo
CRC Computation Unit
Cryptographic Acceleration Unit
Feather Compatible
Power/Enable Pin
True Random Number Generator
Watch Dog Timers
Radio -
Interrupt Pins 21
I/O Voltage 3.3 V
Voltage In 3.3 ~ 5 V
Touch Sensing Pins 0
Program/Debug Interface USB Type-Micro B
Area 1161² mm, 1.8² In
Main I.C. Base Part ATSAMD51
Design Author Adafruit
Date Created By Author 2018-07
Date Added To Library 2019-11

Eval Board

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Quantity Available: 665