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Discovery Set

Better thinking through play.

The Cubelets Discovery Set is the perfect introduction to the world of Cubelets® robot blocks. Open a box of little robots that will intrigue, fascinate, and inspire builders for hours on end. A unique blend of hardware and software, Cubelets make it easier than ever to explore robotics, coding, and other big ideas.

Check out these tips for using the Discovery Set in the classroom in our #CubeletsChat blog post!


Watch to discover more.

Award-winning play.

The Cubelets Discovery Set is the winner of the Parents’ Choice Foundation Parents’ Choice Recommended Award® and The National Parenting Center’s Seal of Approval.

Discover more about Cubelets.


Little robots for building big imaginations.

Cubelets robot blocks make it easy for builders of nearly any age to imagine, craft, and invent countless robot constructions.


Just like building blocks, only smarter.

Cubelets are little blocks of software inside little blocks of hardware. Each Cubelet has a special function, so how you assemble your robot changes its behavior. Every combination is a new creation.


Tactile coding.

Cubelets make the principles of programming easy to learn and practice. Cubelets’ special combination of software and hardware means that as you build a robot you build a program. It’s hands-on coding!

How Cubelets work.


Each Cubelet has a special function and belongs to one of three categories: SENSE Cubelets take in information from the robot’s environment. THINK Cubelets compute and change that information, and ACT Cubelets turn that information into a physical action.

Cubelets’ magnetic faces make them simple to snap together and pull apart. Connect at least one SENSE, THINK, and ACT Cubelet to create a robot construction.

Build loads of simple robot constructions with the Cubelets Discovery Set. Visit the Create with Cubelets page for tutorials, sample, robots, and more!

The yellow Brick Adapters connect to LEGO® and other brick building- block toys.

robot play.

Introducing the Bluetooth® Hat.

The Bluetooth® Hat pairs robot constructions with mobile devices. Simple, proximity-based pairing makes connecting easy. Cap your creations with the Bluetooth® Hat to add new abilities using the free Cubelets app.

Remote Control.

The Cubelets app is your portal to the software blocks inside each Cubelet. Remote Control manipulates individual Cubelets to change the behavior of an entire robot construction.

Personality Swap.

Easily switch and swap the software blocks inside your Cubelets. Use Personality Swap to change a Cubelet’s code with the touch of a button. Switch a Drive Cubelet to spin backwards, or turn a Flashlight Cubelet into a disco-blinking wonder. Reinvent your robot play with Personality Swap.

Invent new Personalities with Blocky.

Expand your robot-building horizons when you code your own Cubelets Personalities. Cubelets Blockly is a visual, drag-and-drop programming language that gives beginners all the tools they need to create new and exciting robot behaviors. With Blockly, the robot-building possibilities are endless!

Little robots,
big lessons.

Discover big ideas.

Cubelets are a great introduction to computational thinking. Computational thinking is a fancy term for the process computer scientists take to tackle challenges. It helps break down complex problems, and find repeatable solutions. Computational Thinking is just one of the many skills that educators love to teach with Cubelets.

Loved by educators from Vermont to Vietnam.

In the classroom or in the living room, Cubelets foster vital skills, all while kids play with robots. Fascinating and fun, they nurture your child’s imagination, creativity, and inventive spirit. Cubelets are the building blocks of better thinkers.

Block by block, robot by robot, Cubelets help develop skills such as:
Ages 4+

Robotics Basics

Cause and Effect

Gross Motor Skills

Speaking and Questioning



Ages 7+

Computational Thinking

Critical Thinking

Design and Engineering Basics

Network Basics

Collaboration Skills

Pattern Recognition

Ages 10+

Computer Science Basics

Coding Smarter

Parallel Programming

Systems Thinking

Complexity Basics

Design Thinking



Technical Details.

What’s Included:

Battery (x1)

Provide the energy needed to power robot constructions.

Brightness (x1)

Enable a construction to detect and respond to light.

Drive (x1)

Build robot constructions that navigate their world.

Distance (x1)

Enable a construction to detect and respond to nearby objects.

Flashlight (x1)

Create constructions that shine a dimmable LED light.

Bluetooth Hat (x1)

Pair robot constructions with free companion apps.

Brick Adapter (x2)

Add style and expand building capabilities with LEGO® or other brick building toys.

Discovery Guide (x1)

A helpful printed Discovery Guide and downloadable Parents’ Play Guide.

Micro-USB Charging Cable (x1)


Cubelets are recommended for builders ages 4 and up. Cubelets are intuitive enough for preschoolers to start building robots, but they scale in complexity, teaching new skills as kids grow. Cubelets are even loved and used in university computer science programs!

Battery Info.

The key to every Cubelets construction is the Battery Cubelet. A fully charged Battery Cubelet can power up to 6 hours of playtime. Recharge the Battery using the included Micro-USB cable. When fully charged, the amber light on the Battery Cubelet will turn off.

Warranty Info.

All Cubelets come with a one-year warranty from date of purchase*. This warranty covers unfortunate accidents — for instance, if your little robots end up in the bottom of the aquarium — and general hardware or software malfunction. If you are having an issue with your Cubelets, please visit our help page.

*See the warranty and returns page for terms and conditions.

Cubelets Size.

Bluetooth Hat Size.

Brick Adapter Size.

Discovery Set

The building blocks of better thinkers.

The Cubelets Discovery Set is the perfect introduction to the world of Cubelets® robot blocks. Open a box of little robots that will intrigue, fascinate, and inspire builders for hours on end. A unique blend of hardware and software, Cubelets make it easier than ever to explore robotics, coding, and other big ideas.