Master STEM skills like an astronaut with our Space–O STEM kits

Become a space explorer and build your STEM armada of innovative spaceships, satellites, and rovers.

How does Space-O subscription work?

1. Choose the length of your subscription

You can cancel anytime

2. Start building your Space fleet

Master life–changing STEM skills

Explore the world of space engineering

Learn about challenges and limitations of humanity's space exploration missions

1. Choose the length of your subscription

You can cancel anytime

2. Start building your Space fleet

Master life–changing STEM skills

Explore the world of space engineering

Learn about challenges and limitations of humanity's space exploration missions

The Skills Of The Future For Less Than $1 USD / Day

Perfect subscription for all space enthusiasts

You've been dreaming of launching your own space exploration mission? With our innovative space–themed STEM kits, you can now build, code, and launch your space fleet from the comfort of your home.

Even though they pose greater challenge than our previous subscriptions, the satisfaction from a finished build is even greater.

What's included in the Space-O STEM kit?

Electric components

Electric components

PCB panels & other parts

PCB panels & other parts

Build guide

Build guide

Educational manual

Educational manual

Perfect subscription for all space enthusiasts

You will learn about electrical engineering and robotics in the most exciting way possible. Your newly–gained skills will help you solve real–life problems faster, with a touch of creativity.

Every 3 months, you'll get a new unique Space–themed STEM project that will help you master your STEM skills and learn about space exploration.

Unique space kits are waiting for you

Box #1

JAMES WEBB SPACE TELESCOPE + APOLLO 11
JAMES WEBB SPACE TELESCOPE + APOLLO 11
Build the most powerful telescope ever created and launch the classic Apollo 11 spacecraft all the way to the Moon in your first Space–O mission.
YOU'LL LEARN ABOUT:
  • IoT & Artificial intelligence
  • Voice recognition & speech synthesis

Box #2

SOLAR ORBITER + CUBESAT
SOLAR ORBITER + CUBESAT
Build the most powerful telescope ever created and launch the classic Apollo 11 spacecraft all the way to the Moon in your first Space–O mission.
YOU'LL LEARN ABOUT:
  • Computer graphics
  • Programming in Python & video-game creation

Box #3

INTERNATIONAL SPACE STATION
INTERNATIONAL SPACE STATION
Build the most powerful telescope ever created and launch the classic Apollo 11 spacecraft all the way to the Moon in your first Space–O mission.
YOU'LL LEARN ABOUT:
  • Digital sound production
  • Digital sound samplers

Box #4

NASA PERSEVERANCE MARS ROVER
NASA PERSEVERANCE MARS ROVER
Build the most powerful telescope ever created and launch the classic Apollo 11 spacecraft all the way to the Moon in your first Space–O mission.
YOU'LL LEARN ABOUT:
  • Autonomous navigation & driving
  • Object recognition

Box #5

JUNO, DISCOVERY & VOYAGER
JUNO, DISCOVERY & VOYAGER
Build the most powerful telescope ever created and launch the classic Apollo 11 spacecraft all the way to the Moon in your first Space–O mission.
YOU'LL LEARN ABOUT:
  • How to code your own games
  • Microcomputers & microprocessors

Box #6

ARTEMIS WATCH + MARS ROVER ADDONS
ARTEMIS WATCH + MARS ROVER ADDONS
Build the most powerful telescope ever created and launch the classic Apollo 11 spacecraft all the way to the Moon in your first Space–O mission.
YOU'LL LEARN ABOUT:
  • Wireless systems & LoRa
  • End-to-end encryption & decryption

Seriously Enriching

Your kids will learn about AI, machine learning, autonomous driving, and other skills that will help them solve real-life problems.

Every three months, you'll get a unique project based on a specific STEM topic

Take a Peek at What’s Expecting You With STEM Box Subscription

stem products showcase

Combine the Power of Our STEM Gadgets

Our STEM toys work best when put to work together! Unlock completely new scenarios and use cases by combining our assembled STEM gadgets.
Attach Armstrong to Wheelson and form a super-smart robotic car that does all the house errands for you. Or connect it to Byteboi and use it as a controller for Armstrong. The choice is yours!
wheelson & armstrong

Raise an Innovator of the Future

Your kids will explore the engineering principles behind everyday objects with our immersive STEM projects

What’s in the STEM Box?

A UNIQUE DIY ELECTRONICS PROJECT

Get all the components you need to build, tinker & explore

A QUICK-START INSTRUCTION BOOKLET

Learn about the engineering, science and history behind your DIY gadget

ONLINE STEP-BY STEP TUTORIALS

Easy-to-follow instructions for a unique building, coding & tinkering experience

“Would recommend this to any parent looking to help their kids learn and grow”

Richard G., father

"This was super easy and fun for my 9-year-old"

"My 9 year old daughter is loving this. Super easy and fun to build."
Joshua B.
Father, Canada

"My daughter feels so confident soldering and connecting circuits"

"My daughter looks forward to each project and has enjoyed every hour of her builds. She has used her brains and hands, made mistakes and fixed them, and now feels so confident soldering and connecting circuits. Even liked the after care when we needed additional pieces."
Kevin H.
Father, England

"As a Brazilian in a Slovak family, this kit was the perfect icebreaker"

Carolina S.
Aunt, Canada

"My daughter and I had so much fun"

"My daughter and I had a great time building our first robot!"
Maren S.
Mother, Washington

"How I Was Able To Engage The Children And Get Them Away From The Tablets"

Milan K.
Father, Croatia

"I recommend it to children AND adults who are interested in tinkering"

"This subscription has been so amazing for me and my daughters. The kits are challenging and engaging, and the components that come with the kits are very high quality. We haven’t hade one issue with ours yet. The subscription is totally worth it and I would recommend it to children AND adults who are interested in electronics, tinkering, and coding!"
Jeremy G.
Father, Arkansas

“Would recommend this to any parent looking to help their kids learn and grow”

Richard G., father

"So Much Fun!"

"My 9 year old daughter is loving this. Super easy and fun to build."
JB
Joshua B.
Canada, Father

"How I Was Able To Engage The Children And Get Them Away From The Tablets"

My children loved building kits like lego, etc., but during last years I saw more and more how they are spending a lot of their free time on mobiles. I tried CircuitMess stem boxes to see if they will be interested. And I was really surprised that yes - although we are still in initial phase, all of my 4 children have plans for STEM boxes to build and use them. What is great, is that some of them are working together - so when my son decided to start with wheelson, then he to continued with byteboi which is also usable as remote control for wheelson, and finally build the armstrong that can work standalone or also mounted to wheelson. This is really great on these sets.
Milan K.
Croatia, Father

"So Much Fun!"

"My daughter and I had a great time build"
MS
Maren S.
US, Mother

"Totally satisfied and impressed"

"My daughter looks forward to each project and has enjoyed every hour of her builds. She has used her brains and hands, made mistakes and fixed them, and now feels so confident soldering and connecting circuits. Even liked the after care when we needed additional pieces."

KH
Kevin H.
US, Father

"These Kits are Incredible"

"This subscription has been so amazing for me and my daughters. The kits are challenging and engaging, and the components that come with the kits are very high quality. We haven’t hade one issue with ours yet. The subscription is totally worth it and I would recommend it to children AND adults who are interested in electronics, tinkering, and coding!"

JG
Jeremy G.
US, Father

"The Best Gift I Have Ever Given"

Carolina S.
Canada, Aunt

“Would recommend this to any parent looking to help their kids learn and grow”

Richard G., father

"This was super easy and fun for my 9-year-old"

"My 9 year old daughter is loving this. Super easy and fun to build."
Joshua B.
Father, Canada

"My daughter feels so confident soldering and connecting circuits"

"My daughter looks forward to each project and has enjoyed every hour of her builds. She has used her brains and hands, made mistakes and fixed them, and now feels so confident soldering and connecting circuits. Even liked the after care when we needed additional pieces."

Kevin H.
Father, England

"As a Brazilian in a Slovak family, this kit was the perfect icebreaker"

"I am thrilled to say that the Wacky Robots set was the best gift I have ever given. I was looking for something unique to surprise my brother-in-law and his amazing family, which includes three curious and creative children of different ages. I also wanted a single piece gift that could delight the entire family and serve as an icebreaker for me, since I'm new to their environment as a Brazilian in a Slovak family. The Wacky Robots set perfectly fulfilled all my requirements. The set contains five different robots, each one teaching a different electronic component, and after giving the gift, we all selected one to build together as a fun family activity. Each learning achievement was celebrated, and we were thrilled when the robots came to life. I must mention the exceptional package, clear instructions, and unique visual details included in each set. They truly set this product apart. I would highly recommend these products to anyone looking for an educational and engaging activity for the whole family."

Carolina S.
Aunt, Canada

"How I Was Able To Engage The Children And Get Them Away From The Tablets"

"My children loved building kits like lego, etc.. but during last years I saw more and more how they are spending a lot of their free time on mobiles. I tried CircuitMess stem boxes to see if they will be interested. And I was really surprised that yes - although we are still in initial phase, all of my 4 children have plans for STEM boxes to build and use them. What is great, is that some of them are working together - so when my son decided to start with wheelson, then he to continued with byteboi which is also usable as remote control for wheelson, and finally build the armstrong that can work standalone or also mounted to wheelson. This is really great on these sets."

Milan K.
Father, Croatia

"I recommend it to children AND adults who are interested in tinkering"

"This subscription has been so amazing for me and my daughters. The kits are challenging and engaging, and the components that come with the kits are very high quality. We haven’t hade one issue with ours yet. The subscription is totally worth it and I would recommend it to children AND adults who are interested in electronics, tinkering, and coding!"

Jeremy G.
Father, Arkansas

"My daughter and I had so much fun"

"My daughter and I had a great time building our first robot!"

Maren S.
Mother, Washington

4.8 based on 80,000+ projects delivered

Easy-to-Follow Instructions

Micro controller

Anatomy guide

Learn about the parts that make your device work

Soldering

Build guide

Step–by–step guide with 100+ photos

Jay-D

Usage guide

Tips & tricks on how to use your device

Coding

Coding guide

Beginner–friendly with detailed instructions

Over 82,463 Boxes Delivered to Future Engineers Worldwide

Check out #CircuitMess to see more makers

Makers 1 Makers 2 Makers 3 Makers 4 Makers 5 Makers 6 Makers 7 Makers 8 Makers 9 Makers 10 Makers 11 Makers 12

Drag and Drop to Code

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

They'll only need to drag and drop colorful blocks to code and expand their device's functionalities.

STEM BOX | ages 11-99

Let Your Kids Acquire Skills of the Future by Assembling Fun Engineering STEM Projects - One DIY Kit at a Time

Hardware assembly

Machine learning

Microcomputers

Autonomous driving

AI

Block coding

Resistors

Python

Motors

Soldering

Electronics

Robotics

Our DIY kits have helped thousands of kids build self–confidence and master STEM all while playing.
Choose between subscription plans below and get unique STEM project delivered every 3 months.

Hardware assembly

Machine learning

Microcomputers

Autonomous driving

AI

Block coding

Resistors

Python

Motors

Soldering

Electronics

Robotics

Our DIY kits have helped thousands of kids build self–confidence and master STEM all while playing.
Choose between subscription plans below and get unique STEM project delivered every 3 months.
3 MONTHS SUBSCRIPTiON
STEM APPRENTICE
When you’re not fully sure and want to get a taste first. Billed per project as you go.
$99/box
GET STARTED TODAY
how it works
New box every 3 months
Pay per box
Cancel anytime
Instructions manual
Free tools included

Most popular

1 YEAR SUBSCRIPTiON
STEM HERO
A year-long program consisted of 4 boxes shipped quarterly. Raise a little STEM hero with deep understanding of electronics.
$87/box
GET STARTED TODAY
how it works
New box every 3 months
Includes 4 boxes
Billed $348 annually
Cancel anytime
Instructions manual
Free tools included
2 YEARS SUBSCRIPTiON
STEM LEGEND
Raise a STEM superhero with this full set of 8 boxes shipped over 2 year period.
$79/box
GET STARTED TODAY
how it works
New box every 3 months
Includes 8 boxes
Billed $632 every 2 years
Cancel anytime
Instructions manual
Free tools included
  • 3 MONTHS SUBSCRIPTiON
    STEM APPRENTICE
    When you’re not fully sure and want to get a taste first. Billed per project as you go.
    $99/box
    GET STARTED TODAY
    how it works
    New box every 3 months
    Pay per box
    Cancel anytime
    Instructions manual
    Free tools included
  • Most popular

    1 YEAR SUBSCRIPTiON
    STEM HERO
    A year-long program consisted of 4 boxes shipped quarterly. Raise a little STEM hero with deep understanding of electronics.
    $87/box
    GET STARTED TODAY
    how it works
    New box every 3 months
    Includes 4 boxes
    Billed $348 annually
    Cancel anytime
    Instructions manual
    Free tools included
  • 2 YEARS SUBSCRIPTiON
    STEM LEGEND
    Raise a STEM superhero with this full set of 8 boxes shipped over 2 year period.
    $79/box
    GET STARTED TODAY
    how it works
    New box every 3 months
    Includes 8 boxes
    Billed $632 every 2 years
    Cancel anytime
    Instructions manual
    Free tools included
Free worldwide delivery. Subscriptions renews automatically, cancel anytime. Rated 4.8/5 by 80,000+ satisfied customers.

FAQ

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

Which subscription line should I choose?

We currently offer two different subscription lines - Wacky Robots & STEM Box.
Here are the main differences between the two:

Wacky Robots subscription:
Ages 9+
• Projects delivered quarterly
• You can choose from 1 box, 1 year or 2 years of pure STEM fun
• Projects teach about electronics
• All the projects are completely tailored to beginners

STEM Box subscription:
• Ages 11+
• Projects delivered every 3 months
• You can choose from 1 month, 1 year or 2 years of pure STEM fun
• Projects teach about electronics & coding
• The projects are of medium complexity but totally beginner-friendly

Can I skip a Box or choose the Box I want to get?

Once you subscribe, you cannot skip a Box.

However; you can cancel your subscription at any time. That way you can cancel your subscription before we start shipping the Box you do not want to get and re-activate your subscription prior to us shipping the Box you do want to get.

You can check the shipping schedule of each Box on the STEM Box or Wacky Robots page.

How much does it cost?

The pricing is different depending on the line you choose. The more months you subscribe to, the better price you’re getting.

STEM Box subscription (projects shipped every 3 months):
• 3 months: $99/Box
• 1 year: $87/Box + a free tools pack
• 2 years: $79/Box + a free tools pack

Wacky Robots subscription (projects shipped every month):
• 1 box: $99
• 1 year: $87/Box
• 2 years: $79/Box

Can I get a Box without subscribing?

Yes, you can purchase STEM Box projects in a form of a bundle in our gift shop.

Find the best STEM project for you, and become an explorer today.

Where do you ship?

We ship worldwide - you can get a Box no matter where you are in the world.

The estimated shipping time is 4 to 6 days, and the best part is that we offer free tracked shipping!

Is this for beginners or experienced makers?

Both!

If you're a beginner, choose our Wacky Robots subscription line and easily enter the exciting world of electronics.

With Wacky Robots, you'll learn about the basics of electronics topics like LEDs, Ohm's law, resistors, capacitors and much more.

Choose our STEM Box subscription line if you're a more experienced maker.

With STEM Box, you'll learn about topics like Artificial Intelligence, Machine learning, and other skills of the future. You’ll also 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 find additional information & learning materials?

You can find all anatomy, 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!

What is your cancellation policy?

We understand that sometimes plans change, and you may need to cancel your subscription or order.

When you purchase a subscription, you'll receive repeat deliveries. These are based on the subscription duration and frequency that you select.

Our subscriptions auto-renew at the end of their duration. If you don't want to renew a subscription, you can cancel it in your account at any time.

Please note that you can not cancel your subscription for the boxes you’ve already purchased; you can only cancel your subscription for the upcoming boxes you have not paid for yet.    

If you have any further questions about canceling your purchase, contact us at contact@circuitmess.com, and we'll assist you.