Spark your curiosity with a new project every three months

We’ve created STEM toys that:
Anyone can build at home. Anyone can play with. Teach hi-tech topics. Are actually fun!

Learn about cutting-edge tech
in a fun way

Empowering kids and adults through
a hands-on STEM experience

Synthia

Release date
Right now

Learn about:

Digital sound production, Digital-to-Analog conversion, what are sound waves and how digital sound samplers work

CircuitPet

Release date
August 2022

Learn about:

The technology behind Tamagotchi, low-power elctronics, always-on devices, RTCs (real time clock)

Clockstar

Release date
November 2022

Learn about:

Wearable Technology, Machine Learning, Motion Detection, Bluetooth and Microcomputers

Armstrong

Release date
February 2022

Learn about:

How Robotic armss, degrees of freedom, servo motors, industrial automation, digital motion control

Mystery box

Release date
May 2022

Subscribe and be the first one to find out

Mystery box

Release date
August 2022

Subscribe and be the first one to find out

Synthia

Release date
Right now

Learn about:

Digital sound production, Digital-to-Analog conversion, sound waves, and digital sound samplers

CircuitPet

Release date
August 2022

Learn about:

The technology behind Tamagotchi, low-power elctronics, always-on devices, RTCs (real time clock)

Clockstar

Release date
November 2022

Learn about:

Wearable Technology, Machine Learning, Motion Detection, Bluetooth and Microcomputers

Armstrong

Release date
February 2022

Learn about:

How Robotic armss, degrees of freedom, servo motors, industrial automation, digital motion control

Mystery box

Release date
May 2022

Subscribe and be the first one to find out

How does it work?

Subscribe

Get a new project every 3 months

Learn the skills of the future

Learn & have serious fun!

Learn the skills of the future

Each Box is centered around specific tech topics

Coding

Microcomputers

Internet of Things

Autonomous Driving

Cybersecurity

Artificial Intelligence

Electronics

Machine Learning

Soldering

What’s in the STEM Box?

Every STEM Box is an exciting set of DIY electronics designed to help you understand the basics of new technologies everyone’s talking about

A unique DIY electronics project

Each Box contains all the necessary components for building your own device

A quick–start instruction booklet

Learn about the technologies behind your DIY gadget

Online step by step tutorials

Learn how to build, code and tinker with your device

Choose your billing period

Boxes ship every three months (quarterly)

1 Box

Pay $99.99 per box

Sold out

Billed every 3 months

Most popular

4 Boxes

Pay $79.99 per box

Get a free Tools pack

Sold out

Billed $319.99 Annualy

8 Boxes

Pay $69.99 per box

Get a free Tools pack

Get one STEM Box free

Sold out

Billed $489.99 every 2 years

5-10 days free shipping worldwide

Cancel subscription anytime you want

Lifetime support & Made in the EU

Secure checkout
via PayPal or credit card

Perfect for kids, parents & experienced makers!

The best way to encourage creativity for kids and adults! Level of difficulty goes up with each box, but it's all well written down and easy to follow so 10/10

Daniel Robert, NL

We have recently started subscribing to circuitmess stem boxes to replace another known brand. The difference is night and day. Circuitmess provides fun projects for kids to enjoy. We have completed two projects and are looking forward to the next one. Albert and the team are always on hand to support and provide help if you need it. Well done team.

Daniel, GB

Excellent kit for introducing children to electronics. It lets them understand that technology can be crafted and not only consumed.

Paul, IE

Begin here and end up anywhere!

Only 1% of people have the knowledge and skills to create new technology.

Autonomous cars, AI robots, mobile phones…you name it. You’ll have an edge in just about everything.

Endless possibilities

Every project you’ll get was playfully designed just for you.
Each unique kit will teach you about new tech topics of the future.

Get excited about building every new box just as we are excited about creating them for you!

Drag and drop to code!

Our beginner–friendly coding interface will help you code your own apps and games.

Simply drag and drop colorful blocks to code and expand your device’s functionalities.

Join the adventure

Get up to 40% off as a first-time subscriber

FAQ

Here are our most asked questions. Can’t find what you’re looking for?

How does the subscription work?

You will get a new DIY STEM project every three months with the STEM box subscription.

To subscribe, choose how many boxes you want to prepay.

The more boxes you pay for right now, the lower the price per STEM box is.

If you ever decide to cancel your subscription, you can do so anytime in your account.

Please note that you can cancel only the upcoming boxes you have not paid for yet.

If you do not cancel your subscription, your bank card will be billed quarterly, annually or every two years, depending on your subscription plan.

Can I skip a STEM Box?

You can not skip STEM boxes.

Where can I find additional information and learning materials?

You can find all build, code & usage guides on our learning platform CircuitMess Resources in the section Guides.

CircuitMess Community forum is a place for additional discussions and valuable tips and chat with our team and hundreds of users.

All other free additional resources (games, apps, schematics etc.) can be found in the Creations section.

Everything we do is open-sourced, and more information about all the products is available on our GitHub.

If you still can’t find the answer you’re looking for, you can always reach out to us at contact@circuitmess.com, and we’ll be happy to help!

Is this for beginners or experienced makers?

Both!

All our kits are completely tailored to beginners and no previous knowledge is needed to assemble them. Visit our online build guide library for a hassle-free experience.

If you’re already an experienced maker, you’ll find that our kits are completely customizable with endless tinkering and modification options in both hardware and software. To get inspired & share your creations, visit our Community forum or Discord server.

Where can I suggest an improvement

If you think you have something that would make any of our products better in any way, shoot us an email at contact@circuitmess.com or visit our Community forum.

We always accept suggestions and if your idea is a good one, you can expect some rewards!