Looking for a super small microcontroller to use with the Qwiic eco-system? The SparkFun Qwiic Micro is moulded to fit our standard 1″x1″ Qwiic standard size which makes it one of our smallest micro-controller offerings to date. At it’s core is the powerful and versatile ATSAMD21E18, which is an ARM Cortex M0+, 32-bit microcontroller, with 256KB of flash memory that can run at up to 48MHz! It has 12 digital pins which include 5 analogue pins, SPI, IC, and an additional UART data bus as well as a Qwiic connector for easy integration into the Qwiic ecosystem and IC prototyping.

On the underside of the Qwiic Micro, we’ve left open pads for a LiPo Battery connector that you can add yourself if you wish you can make the micro-controller portable. We’ve also provided pads on the underside for a flash memory chip to maximize the board’s memory capacity. The SparkFun Qwiic Micro comes programmed with a UF2 Bootloader making it easy to program with easy driver installation! If you need a tiny but mighty micro-controller for your next project check out the SparkFun Qwiic Micro.

Get Started with the Sparkfun Qwiic Micro Guide

Features

• Dimensions: 1in x 1in
• Optional LiPo Charging Port
• Expandable Flash Memory
• Qwiic Connector

ATSAMD21E

• 48 MHz
• 256KB
• 32K SRAM
• UF2 Bootloader

Resources

• Schematic
• Eagle Files
• Board Dimensions
• Datasheet (SAMD21E)
• Graphical Datasheet
• Hookup Guide
• UF2 Bootloader
• Qwiic Info Page
• GitHub Hardware Repo
• Arduino Board Definitions
• Circuit Python Firmware
• SAMD Windows 7 Installer