The Ultimate STEM Bundle is the complete CircuitMess collection! It includes Orion Watch, Butter Bot with its expansion modules, Rimac Nevera, Wheelson 2.0, ByteBoi 2.0, Chatter 2.0, Synthia 2.0, Jay-D 2.0, Clockstar 2.0, Codee 2.0, Skitter, Dashy, and Bit 2.0 with all 9 Wacky Robots Bit Expansions. You also get a free Tools Pack 2.0 and Silicone Work Mat. It is basically every product we sell.
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Over 300.000 STEM kits sold
Full-on STEM Experience
STEM for Teens & Adults
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Advanced Builds
Butter Bot
Meet Rick and Morty's Butter Bot, an AI-powered desktop companion that sees, listens, and talks back. It arrives ready to run: swap in 6 DIY expansion modules, drive it with the remote controller, and dive into AI and machine learning.
Orion Watch
Our newest smartwatch goes together with no soldering, and then the coding begins. Describe a game in plain English in VibeBoy, our AI-assisted coding studio, and send it to your wrist over USB. Then open the code and learn to change it.
ByteBoi 2.0
Get hands-on with retro gaming and coding! Build the ByteBoi 8-bit console, play classic-style games, and then learn to program your own. Plus, you can transform your ByteBoi into a controller for the Wheelson robot car.
Wheelson 2.0
Assemble a self-driving car and explore the world of AI! Wheelson teaches you about autonomous navigation, robotics, and electronics. You can also take manual control using the CircuitMess ByteBoi game console.
Chatter 2.0
Build, connect, and communicate securely with Chatter. This DIY kit lets you assemble two long-range, encrypted text messaging devices that operate without Wi-Fi or cellular networks. Learn about LoRa technology and radio communication.
Synthia 2.0
Build your own all-in-one music creation station: synthesizer, drum machine, sequencer, and sampler. Synthia includes pre-loaded sounds, a built-in microphone for recording, and a range of sound effects to experiment with.
Jay-D 2.0
Dive into the world of DJing and electronics with Jay-D! Build your own mixtable, learn about digital audio and DACs along the way, and then start crafting your own mixes using the jog wheels, crossfader, and built-in effects.
Rimac Nevera
Build a fully functional 1:18 scale replica of the Rimac Nevera hypercar and race it with your custom Time Attack controller. Learn how electric vehicles work, then code your own driving rules and light shows.
Starter Builds
Bit 2.0
Build your own retro handheld console and start playing its pre-loaded games right away. Then code your own games in CircuitBlocks, and unlock 9 exclusive games with the Wacky Robots Bit Expansions included in this bundle.
Skitter
Build a walking robot bug on four real legs, with no soldering needed. Learn how robots walk, then steer Skitter anywhere with the universal controller you build yourself.
Dashy
Build your own RC race car with no soldering, learn how radio control works, and race it around the living room. The same universal controller also drives Skitter.
Codee 2.0
Go beyond just playing – create your own virtual pet experience. With Codee, you'll build the hardware, then learn to code its behavior, personalize its interactions, and even design your own mini-games.
Clockstar 2.0
Discover wearable tech and build your own customizable smartwatch! The Clockstar kit teaches you about electronics, Bluetooth, and gyroscopes, all while you create a unique timepiece you can proudly wear.
Wacky Robots Bit Expansions
Robby
Insert the Robby token into Bit to unlock an exclusive game, and add 14 Wacky Robots trading cards to your collection.
Resistron
Unlock a brand-new Bit game with the Resistron token, plus 14 cards for the Wacky Robots Trading Card Game.
Buttons
Plug in the Buttons token to unlock an exclusive Bit game, and grow your deck with 14 new trading cards.
Capacitron
The Capacitron pack unlocks a new game on your Bit and adds 14 collectible cards to your Wacky Robots set.
Bob
Unlock Bob's exclusive Bit game and collect 14 more cards for the Wacky Robots Trading Card Game.
Mr. Bee
Insert the Mr. Bee token into Bit for a brand-new game, plus 14 trading cards to play with friends.
Marv
Marv's token unlocks an exclusive Bit game, and his 14 trading cards bring you closer to the full set.
Hertz
Unlock a new Bit game with the Hertz token and add 14 Wacky Robots trading cards to your deck.
Artemis
Complete the collection with Artemis: an exclusive Bit game token plus 14 trading cards to finish the full Wacky Robots set.
What's in your free tools pack?
1
Sponge
2
Cutter pliers
3
Glasses
4
USB cable
5
Screwdriver
6
Lead-free solder
7
Soldering tip
8
Soldering iron
9
Soldering stand
1
Sponge
2
Cutter pliers
3
Glasses
4
USB cable
5
Screwdriver
6
Lead-free solder
7
Soldering tip
8
Soldering iron
9
Soldering stand
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x5$399.00
$527.97-24%
Estimated ship date: September 2027
%
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$884.00-30%
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exclusive
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Butter Bot
Sentient, AI-powered robot inspired by Rick and Morty with extra modules
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free tools$349.00
Code your CircuitMess devices with ease
CircuitBlocks puts the power of coding in your hands. This visual, block-based programming environment is designed for beginners but powerful enough for experienced coders. Generate Arduino-compatible code and unlock the full potential of your CircuitMess devices.
Have questions?
Check out our FAQs!
The Ultimate STEM Bundle has such a wide range of projects that it offers something for ages 7 and up. Kits like Bit, Skitter, and Dashy are great for younger builders (with supervision), while others, like Butter Bot and Wheelson, are better suited for teens and adults.
No prior experience is needed! All CircuitMess kits, including those in the Ultimate STEM Bundle, are designed to be beginner-friendly. Each kit comes with detailed instructions, and we offer plenty of online resources and support if you need help.
You'll learn a ton! This bundle covers a huge range of STEM topics: electronics, coding (with CircuitBlocks, Python, and AI-assisted coding in VibeBoy), robotics, AI and machine learning, computer vision, wireless communication, electric vehicle tech, sound synthesis, digital audio, and more. It's a complete STEM curriculum in a box!
Building everything in the Ultimate STEM Bundle would likely take 30+ hours, spread out over weeks or even months. It's an ongoing learning adventure, not a single weekend project.
Yes, all the kits included in the Ultimate STEM Bundle are also available for purchase individually. However, the bundle offers the most comprehensive CircuitMess experience – and significant savings!
You can check our cancellation policy on this link.
We ship worldwide, so you can get a kit no matter where you are.
You get free tracked shipping on orders over $96 (€96 in the EU, to a pickup point). On orders below $96 (€96), shipping is $15, or €7 to an EU pickup point and €10 to an EU home address.
Saudi Arabia, the UAE, Qatar and Kuwait are the exception: orders there ship by express only, at $40, or $20 on orders over $96.
We ship from seven regional warehouses: in the EU, the US, Canada, Saudi Arabia, the UK, China and Australia. Your order goes out from whichever one is nearest to you. If you have any questions about import charges, please check this article.
Like all our products, the Ultimate STEM Bundle comes with clear instructions and a build guide. You can follow the provided resources no matter how fluent you are in electronics and robotics. For additional support, check Circuitmess resources. If you're stuck, feel free to contact us on this link and we'll help you as soon as possible.