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Single-unit price: $24.99 + shipping

Not available / campaign end date: Wed, 30 Sep 2020 12:00:00 PDT

Backers icon

Backers: 83

Target icon campaign show

Target: 100

Funded icon show

Funded: 108

  • Campaign Created
  • Campaign Reached Goal
  • Campaign Closed
  • Product Being Manufactured
  • Shipping to GroupGets
  • GroupGets Received
  • Shipping to Customers

Product Details



Brand / Manufacturer

Eddie Espinal (4hackrr)

Manufacturer Part #


Product Description


ATMegaZero Logo

The ATMegaZero is a microcontroller board based on the ATMega32U4 microchip, the same chip used in the Arduino Leonardo and Arduino Micro. It was modeled after the Raspberry PI Zero to take advantage of its sleek design and form factor but in the form of a microcontroller board.

Similar to the Raspberry Pi Zero the ATMegaZero comes with 40 GPIO pins that can be used as input or output for interfacing devices and can be programmed using the Arduino IDE software.

Because the ATMegaZero was modeled after the Raspberry Pi Zero it will fit perfectly on any existing Raspberry Pi Zero cases.



The ATMegaZero was designed with makers in mind and here are some of the key specs that make this a great microcontroller board:

  • Core: ATmega32U4 microcontroller running at 16MHz
  • Memory: 32KB Flash, 2.5KB SRAM, 1KB EEPROM
  • GPIO: 40 pins header
  • Digital I/O: 17
  • Analog Input: 6
  • GND pins: 8
  • +3V3 pins: 2
  • +5V pins: 2
  • ESP-01 GPIO pins: 2 (direct access to these two pins)
  • Communication: UART/SPI/I2C
  • Micro SD Card module for reading/writing data (Micro SD card not included)
  • 32 pins OLED Display port (compatible with 30 pins SSD1306​ & ​SSD1331)
  • Pinout for connecting an ESP-01 WIFI Module
  • Operating Voltage: 5V
  • Dimensions: 2.6"x1.2" (65mmx30mm)
  • Weight: 0.5oz
  • Software: Works out of the box with the Arduino IDE (Win/OSX/Linux)


ATMegaZero Pinout Diagram

ATMegaZero Pinout Diagram

Main Components

ATMegaZero Photos

ATMegaZero WIFI Module



Designed by

* Full documentation can be found here:


This campaign is brought to you by Hackster Launch, a collaboration between and GroupGets to bring high quality hardware to market.

Why GroupGets?

In order to get the unit costs low enough, the manufacturer requires at least an order of 100 units. Help make this GroupGet a reality by supporting today!

External Links

Manufacturer product page

Purchase Information

Unit Deliverable

One ATMegaZero Board (2x20 Dual Male Header Not Included)

Unit Price


Campaign Part #



Not available / campaign funded, end date: Wed, 30 Sep 2020 12:00:00 PDT

Factory Lead Time

45 Days

Options and Add-Ons

2.54mm 2x20 Dual Male Header GPIO Pins (Black)


This 2x20-pin strip male header is a great way to add pins to the ATMegaZero board.  

2x20 Dual Male Header Pins

ATMegaZero Protoboard


The ATMegaZero Protoboard allows you to attach custom circuitry and makes it easy to prototype on top of the ATMegaZero board. It has a prototyping grid with soldering holes for attaching chips, resistors, LED, potentiometers, and more.

2x20 Dual Male Header Pins

Campaign discussion forums are intended for questions about the product such as specifications or to share ideas about applications. The campaign initiator or GroupGets may also send out important one-to-many updates on this channel. This is not the place for individual technical support inquiries. For help or questions about an order, please log a ticket here: Support

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    Do you know which country are the manufactured? I tried to looks information online but I got nothing.

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    The board was designed in the United State and will be assembled in Shenzhen, China. Thanks for asking.

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    The preview photo for the video on the project page shows a color-coded 2x20 header - are those available? The ones available as a add-on (and the ones actually in the video) are just black...

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    @CatFood, great question. The colorful ones are not included and I wasn't able to get them in bulk to include it as an Addon. The only one available was black. I'm planning to find a manufacturer that can do them in bulk and will have them available for sale from my website after the campaign ends. Thanks for the question.

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    Interesting project! I'd also be interested in the colored headers for the single board I backed.

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    Thank you @dan_begallie, I'm glad you like it too. Unfortunately, we don't have the colored header pins as part of the campaign, but you will be able to get them from the ATMegaZero Online Store after the campaign is over. The manufacturer didn't have them available on time for the campaign. Sorry about that. But thank you for backing the project!!

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    Thanks! If you are able to make the headers available, it would be great if the pinout documentation matched the colors on the header pins!

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    Thanks, Jose those are not the same one I'm using. The one I will have on my store has other color-coded pins for UART, SPI, etc.. They will be available once the store launches.

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    Hey! Just received my at mega zero and noticed some defects in the SMD placement. A number of components are not even aligned to their pads, or touching other components. Please advise on a remedy :) prefer not to see magic smoke and I dont have the dexterity to redo smd.

  • Aoh14ginjfnrum4ozx11hughrja2uxxphtur9rc hrz56wa=s50
    Robert Borzellieri

    @carsten.corazza I think that I might have a similar issue.
    I did not think to look over the board before powering it on, but I was able to upload a simple blink sketch to it. Afterwards I uploaded the SD card demo ( and not only does that fail, it fails and I can no longer write to the board. The bootloader is still working, and I was going to write to the board via the ICSP, but after the previous post I did notice some solder pads are joined and some components are connected. Most obvious is C24 is connected to D2, but there are several others.

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    Hi @carsten.corazza and Robert. The SMD that are touching are decoupling capacitors and won't affect the board. The reasons they are not aligned is because they are very closed to each other, and during the melting process in production they got shifted, they will not affect the board and it won't burn as each of those boards was tested prior to shipping them to GroupGets.

    Robert, in regards to the SD card, please make sure that you press and hold the reset button when you press the upload sketch and release once you see the uploading status on the Arduino IDE. If you like please ping me directly so that I can help you out. I'll be happy to replace it if there is any problems. Thanks.

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