What CircuitMess does

CircuitMess is a privately held direct-to-consumer hardware company that designs, manufactures, and sells do-it-yourself STEM electronics kits targeted at children (ages 7+), teenagers, and adult hobbyists. The company was founded in 2017 by CEO Albert Gajšak, is headquartered in Lucko, Croatia with a corporate entity (CircuitMess, Inc.) incorporated in Delaware, and employs 11–50 people. Its product line includes programmable smartwatches (NASA Artemis Watch 2.0, Clockstar 2.0), retro game consoles (ByteBoi 2.0, Bit 2.0), AI-powered robots (Wheelson 2.0, NASA Mars Perseverance Rover, Butter Bot), music devices (Jay-D 2.0, Synthia 2.0), communicators (Chatter 2.0), virtual pets (Codee 2.0, Beep Boop series), the MAKERphone 2.0 modular phone, and a range of themed bundles and accessories, all built around ESP32 microcontrollers with open-source firmware. Companion software includes the proprietary CircuitBlocks visual programming platform (code.circuitmess.com), GitHub-hosted open-source project files, build guides, and a community forum.

The company monetizes through one-time purchases on its Shopify-hosted storefront at prices ranging from $8.99 for add-on modules to $349 for the NASA Mars Perseverance Rover, with most kits priced between $89 and $149. Bundles (Bestsellers, Mars Exploration, Ultimate STEM, Coding 2.0, Music 2.0, etc.) offer 13–30% discounts and drive higher average order values. Free worldwide shipping is offered on orders over $96, and educational institutions can purchase through the ClassWallet marketplace using education funds. The company has sold over 300,000 kits globally and reports being recommended by STEM educators, with earned media coverage in Forbes, TechCrunch, Wired, The Verge, Mashable, and BBC. A 2023 funding round was led by Day One Capital.

The business is a hardware-pure-play DTC retailer with horizontal segmentation across kids, teens, and adults, and a vertical push into education via ClassWallet. Revenue is transactional rather than recurring, there are no disclosed enterprise contracts, and the company does not sell through third-party retail channels, concentrating all demand generation on its own storefront and earned media.

Name

CircuitMess

Legal name

CircuitMess, Inc.

Website

https://circuitmess.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

CircuitMess designs, manufactures, and sells direct-to-consumer DIY STEM electronics kits (smartwatches, robots, game consoles, AI cars) for kids, teens, adults, and STEM educators globally, powered by ESP32 microcontrollers, open-source firmware, and its CircuitBlocks visual programming platform.

Ownership category

akta.pro rank

Product category

Educational Electronics Kits

NAICS

Hobby, Toy, and Game Retailers (45912), Electronics and Appliance Retailers (44921), Computer Terminal and Other Computer Peripheral Equipment Manufacturing (334118)

SIC

Electronic Components & Accessories (3670), Games, Toys & Children's Vehicles (No Dolls & Bicycles) (3944), Retail-Computer & Computer Software Stores (5734)

akta.pro primary industry

Maker / DIY Electronics & Physical Computing Platforms (EDAFANAC)

Keywords

• DIY electronics kits
• STEM education products
• Educational robotics kits
• DIY coding kits
• STEM learning toys

Headquarters

HQ city

Lucko

HQ country

Croatia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. DIY STEM Kit Sales: One-time purchase revenue from selling physical DIY electronics kits. Individual kits range from $8.99 to $349, with bundled products offering discounts of 13-30% off individual prices. Products include robots, game consoles, smartwatches, audio equipment, and expansion packs. Free worldwide shipping on orders over $96.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

CircuitMess designs, manufactures, and sells hands-on DIY electronics kits that let users build, code, and customize programmable devices such as smartwatches, game consoles, AI-powered robots, audio equipment, and phones. Products are built around ESP32 microcontrollers with open-source firmware and the proprietary CircuitBlocks visual programming platform, targeting kids (ages 7+), teens, and adults worldwide through a direct-to-consumer Shopify storefront and an educational channel via ClassWallet.

Product overview

CircuitMess offers a portfolio of hands-on DIY STEM kits for kids, teens, and adults, combining physical electronics assembly with programming education. The core product line spans single-item electronics and robotics kits (NASA Artemis Watch 2.0, Wheelson 2.0, ByteBoi 2.0, Bit 2.0, Clockstar 2.0, Chatter 2.0, Jay-D 2.0, Synthia 2.0, Codee 2.0, Butter Bot, Rimac Nevera), themed bundles (Mars Exploration Bundle, Ultimate STEM Bundle, Coding Bundle 2.0, Music Bundle 2.0, Gaming Bundles, Virtual Pet Bundle), educational curriculum (Fractions & Decimals Curriculum), and accessories (Tools Pack, work mats, protective gear). Products like Wheelson 2.0 feature AI-powered autonomous driving, while others like the NASA Mars Perseverance Rover incorporate AI navigation. The portfolio also includes add-on expansion packs (Bit Expansion Series with collectible cards, Wacky Expansion packs) and wearables accessories (Artemis Watch straps).

Differentiator

Problem solved

Functional benefit

Products and services

• NASA Artemis Watch 2.0 A $129 NASA-themed programmable smartwatch featuring a transparent design, ESP32 microcontroller, activity tracking, and open-source firmware that enables users to customize watch faces and apps.
• Wheelson 2.0 A buildable, AI-powered robot car with autonomous self-driving navigation using computer vision to perceive and interpret its environment.
• NASA Mars Perseverance Rover A NASA-themed, build-your-own AI-powered Mars rover kit priced at $349, combining electronics assembly with rover navigation programming.
• ByteBoi 2.0 A retro DIY handheld console kit that lets users assemble the hardware, play pre-loaded games, and code their own games.
• Bit 2.0 A $89 DIY retro console kit for learning electronics and programming fundamentals through hands-on assembly and coding.
• Clockstar 2.0 A $99 build-your-own DIY smartwatch kit that connects to the user's phone, teaching electronics assembly and coding.
• Chatter 2.0 A $149 build-and-code encrypted communicator kit that teaches wireless communication and security concepts.
• Jay-D 2.0 A build-your-own DIY DJ mixer kit that teaches digital sound production through assembly and programming.
• Synthia 2.0 A build-and-code all-in-one sampler, drum machine, sequencer, and synthesizer kit for music production education.
• Codee 2.0 A $89 build, code, and care virtual pet kit including six unique games for hands-on STEM learning.
• Butter Bot A sentient AI-powered robot kit inspired by Rick and Morty, bundled with extra modules for advanced robotics learning.
• Rimac Nevera A fully functional limited-edition buildable replica of the Rimac Nevera hypercar, combining engineering education with collectible design.
• MAKERphone 2.0 The world's first modular DIY phone kit, available via Kickstarter reservation, combining phone hardware assembly with programming education.
• Fractions & Decimals Curriculum An educational curriculum that teaches fractions and decimals through motion-based activities, designed so no parent instruction is required.
• Tools Pack A standalone tools pack including lead-free solder and essential electronics tools for CircuitMess DIY projects.
• Silicone Work Mat A heat-resistant silicone work mat measuring 9.33 x 7.79 inches for workspace protection during electronics projects.
• Protective Goggles Safety goggles designed for working with electronics projects, sold as a standalone accessory.
• Gift Card A CircuitMess gift card offered as a STEM gift option for curious minds to purchase any product from the catalog.
• Beep Boop Kirin The Inventor Beep Boop digital pet for techy mini-games, part of the Beep Boop collectible digital pet series.
• Beep Boop Miao Miao The Stealthy Beep Boop digital pet for tricky mini-games, part of the Beep Boop collectible digital pet series.
• Beep Boop Mochi The Artistic Beep Boop digital pet for creative mini-games, part of the Beep Boop collectible digital pet series.
• Beep Boop Tochi The Adventurous Beep Boop digital pet for exciting mini-games, part of the Beep Boop collectible digital pet series.

Quantifiable outcome

• 300,000+ kits sold globally
• +1 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature2 records

Partnerships

One partnership is on record.

• ClassWalletcoreChannel Partner/ Reseller/ DistributorClassWallet is an educational marketplace that enables schools and educators to purchase CircuitMess products using education funds and grants. CircuitMess has created a dedicated ClassWallet purchasing process allowing educators to submit quotes and process payments through the platform, making their STEM kits more accessible to educational institutions.

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Makeblock: STEM education robotics and coding platform selling programmable robot kits to schools and consumers globally. Comparable as a maker/STEM hardware brand with both consumer and education channels.
• Arduino: Open-source microcontroller platform with a massive DIY/maker community and educational ecosystem. Directly comparable as a STEM/DIY electronics learning brand targeting students and hobbyists with programmable hardware kits.
• Adafruit: DIY electronics retailer selling components, kits, and learning resources to makers and educators. Comparable through its STEM kit retail motion and educational content ecosystem.
• micro:bit Educational Foundation: STEM-focused microcontroller designed for classroom coding education with widespread school adoption. Directly comparable as a programmable DIY hardware platform for younger learners.
• Kano Computing: DIY computer/electronics kits aimed at kids and families for hands-on coding and hardware learning. Directly comparable in target audience (kids/families) and build-your-own-device positioning.
• SparkFun Electronics: Open-source electronics retailer offering kits, components, and tutorials for makers and STEM classrooms. Directly comparable DIY electronics kit business with strong education focus.
• Raspberry Pi Foundation: Maker computing platform with strong education channel (PicassoTiles, code clubs, school deployment). Highly comparable to CircuitMess in targeting kids/teens learning electronics and coding via affordable hardware.

Broad incumbents

• LEGO Education: Established STEM education brand under LEGO, offering programmable kits (SPIKE, Mindstorms) sold through schools and retail. Comparable in K-12 STEM kit market but with much larger distribution and parent brand strength.
• Sphero (incl. littleBits): STEM robotics and programming toys for education and consumer markets, including the acquired littleBits electronics platform. Comparable in programmable STEM hardware for kids with broader product portfolio.

Emerging players

• Piper: DIY computer kit that teaches kids STEM through building a Minecraft-based wooden case computer. Comparable niche overlap in build-your-own STEM hardware for kids, though smaller scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/circuitmess
• GitHubgithub.com/CircuitMess
• LinkedInlinkedin.com/company/circuitmess
• Facebookfacebook.com/circuitmess

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CircuitMess