3727: Itsy Bitsy M0 Express - ATSAMD21 Cortex M0

Summary

What's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy M0 Express! Small, powerful, with a rockin' ATSAMD21 Cortex M0 processor running at 48 MHz - this microcontroller board is perfect when you want something very compact, but still with a bunch of pins.

ItsyBitsy M0 Express is only 1.4" long by 0.7" wide, but has 6 power pins, 23 digital GPIO pins (12 of which can be analog in, 1x analog out, and 13x PWM out). It's the same chip as the Arduino Zero and packs much of the same capability as an Adafruit Metro M0 Express or Feather M0 Express but really really small. So it's great once you've finished up a prototype on a Metro M0 or Feather M0, and want to make the project much smaller. It even comes with 2MB of SPI Flash built in, for data logging, file storage, or CircuitPython code.

The most exciting part of the ItsyBitsy M0 is that while you can use it with the Arduino IDE, 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 Itsy' and your code will go with you.

Specifications

Manufacturer	Adafruit Industries LLC
Category	Open Source MCU Platforms
Eval Board Part Number	1528-2554-ND
Eval Board Supplier	Adafruit Industries LLC
IDE	Arduino IDE, with Software Add-on CircuitPython MakeCode
Speed	48 MHz
Bits	32 Bit
Memory, Flash/RAM	256 kB + 2 MB / 32 kB
Digital I/O	23 I/O, 18 PWM
Interface	I²C x1 SPI x1 UART x1 USB Device
Analog Outputs (DACs)	1 x 10 Bit
Analog Inputs (ADCs)	11 x 12 Bit
DMA Channels	12
Features	1 x NeoPixel Output Power/Enable Pin Real Time Clock Timers Watch Dog Timers
Radio	-
Interrupt Pins	22
I/O Voltage	3.3 V
Voltage In	3.5 ~ 6 V
Touch Sensing Pins	6
Program/Debug Interface	USB Type-Micro B
Area	632² mm, 0.98² In
Main I.C. Base Part	ATSAMD21
Design Author	Adafruit
Date Created By Author	2018-03
Date Added To Library	2019-11