Adafruit ItsyBitsy M0 Express - for CircuitPython & Arduino IDE Shipping:1 day and in this case

and in this case

High capacity Lipo for 16hs+ of continuous run

and/or use an AVR programmer

We took the basic layout of a half-sized breadboard

when set to 51

Adafruit ItsyBitsy M0 Express - for CircuitPython & Arduino IDE Shipping:1 day and in this caseWhat'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 (11 of which can be analog in, 1x analog out, and 13x PWM out). It's the