SKU: 42650442715

SparkFun Qwiic Micro - SAMD21 Development Board

Sale price$18.87 Regular price$20.97
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Description

SparkFun Qwiic Micro - SAMD21 Development BoardLooking for a super small microcontroller to use with the Qwiic eco system? The SparkFun Qwiic Micro is molded 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 analog pins, SPI, IC,

Looking for a super small microcontroller to use with the Qwiic eco-system? The SparkFun Qwiic Micro is molded 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 analog pins, SPI, I²C, and an additional UART data bus as well as a Qwiic connector for easy integration into the Qwiic ecosystem and I²C 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 you next project check out the SparkFun Qwiic Micro.

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Features

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

ATSAMD21E

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

Documents

Shipping Notes
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Exchange/Return Notes
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SKU: 42650442715

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Jason
Lake Worth, US
★★★★★ 5
Looks nice, easy to install
Color: Rustic Brown, Number Of Shelves: 2, Size: 22in
This shelf is lightweight, looks nice, and was easy to install. It comes with a little level to help you install it properly. There are plenty of mounting holes to choose from, so it is easy to screw it directly into a stud, or to just use holes that are convenient for you. It comes with a plethora of mounting hardware. I mounted mine a bit high up and chose to mount it upside down so that I wouldn't see the three screws that hold the shelf to the mounting bracket.
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Reviewed in the United States on April 8, 2026
C
Verified Purchase
Christina Walter
Boise, US
★★★★★ 5
End table
Color: Black, Item Package Quantity: 2
We did not keep these due to size. Advertised correctly but we miss read. Were shipped in a timely fashion. Product look good.
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Reviewed in the United States on March 12, 2026
C
Verified Purchase
Carlisha
Massapequa, US
★★★★★ 1
You have to push hard for the plug
Color: Black, Item Package Quantity: 2
Smaller than I thought
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Reviewed in the United States on March 16, 2026
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Excelente calidad
Color: White, Item Package Quantity: 1
Ermosa bella y buena calidad
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Reviewed in the United States on April 23, 2026
L
Verified Purchase
Leeann Cooper
Boise, US
★★★★★ 4
Cute but slightly flawed.
Color: Black, Item Package Quantity: 1
Easy to assemble. USB works great. Couldn’t get a plug in the plug holes.
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Reviewed in the United States on October 16, 2025

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