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No wires, no fuss: Expand your microcontroller's memory with ease.

The amomii SD microSD card module is a game-changer for expanding storage capabilities on microcontrollers. It can be used in a conventional way with any 5V microcontroller, but requires no jumper wires when used with an Arduino UNO style board, making it the first of its kind. It is the most user-friendly and efficient solution yet.
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Memory expansion just got easier.

The amomii SD microSD card module is a versatile and compact reader that helps you store and use large amounts of data with ease. It can be used with any 5V microcontroller in standard mode, but with its innovative design, it eliminates the need for jumper wires when used in UNO mode. This makes it the most user-friendly and efficient solution yet for expanding your storage capabilities.

When used in UNO mode, the amomii SD module connects directly to the bottom of any Arduino UNO style board, covering only the ICSP pins and digital pins D0-D2, leaving the rest of the board open for use in your project. This mini shield forms a tight connection with your UNO, ensuring reliable connectivity without any hassle.

Whether you're working on a GPS logger, a weather recorder, or any other type of data-intensive project, the amomii SD module is the perfect solution for expanding your storage capabilities. So why settle for traditional modules with unreliable and messy jumper wires all over the place when you can upgrade to the amomii SD and take your projects to the next level?

What's in the Box?
Everything needed to expand your microcontroller’s memory.

Collapsible content

See what's Inside

1 x amomii SD microSD module
2 x Jumper Connectors

Making Connections

Standard Mode

Connect the mode pins with the provided jumpers, and wire it to your favorite 5V microcontroller.

UNO Mode

When used in UNO Mode, remove the jumpers, and connect it directly to your amomii UNO or any other Arduino UNO configured control board.

Code It

With example codes, guides, and videos, writing code for the amomii SD couldn’t be easier. Start with an example, and adapt it for your use case.

Get Creative

Get inspired and recreate some of our example projects, or build your own. But don't forget to share your creation and inspire us!

Your Gadget, Your Style
To 3D print, or not to 3D print, that is the question.
Expose It
The amomii SD is a thing of beauty and needs no covering at all. Connect it, code it, and expand your controller's memory in its naked glory.
3D Print It
For those with access to a 3D printer, why not personalize your module with this stylish 3D printable case!
Ready to Expand?
Projects & Hacks
Don’t let us hold you back!

Log the temperature change in your home over a week and plot it on a graph; record the position changes of your robot arm and play back the movement; if it's memory intensive, the amomii SD’s got your back.

To get started with the amomii SD, you'll need a few things:


The amomii SD is compatible with most 5V microcontrollers, but works best with the amomii UNO or any other Arduino UNO style board.
Download Software


You'll need a computer with the Arduino IDE or another coding environment installed to upload code to your microcontroller. Don't worry if you're not familiar with coding, we provide detailed instructions on how to install the free software and use it.

microSD card

The amomii SD is compatible with microSD cards up to 32GB, formatted as FAT32. If you're not sure what that means, don’t worry, most microSD cards have this formatting anyway, and if yours doesn’t, our Getting Started manual will show you how to fix that (it's easy).
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