Build-a-Bot Workshop

Build your own 4‑wheel robot, one step at a time.

10 easy steps with 3D models you can spin around, a helper tip for grown-ups, and a quiz at the end. Ready, builder?

Who's building?

My builder name:

My robot's name:

Robot color:

Experience:

🤖 Who am I? Tap me! 4 motors · 1 brain · 0 fear

⟲ drag me to spin

Before you start

🧑‍🔧 Get a helper Ask a grown-up to build with you. Screws and wires are team jobs!

🧲 Small parts Screws and pins stay on the table — never near mouths. Keep them in a little cup.

🔩 Make a workshop A clear table, a small screwdriver, and your robot kit. That's all you need.

📈 My progress — for builders and their grown-ups

🏅 My badges

Step 0 — Know your kit

Meet the parts

Tip out your kit gently and find each of these. Drag every part to spin it around in 3D!

Assembly garage

Build it with your own hands!

Drag every part onto its glowing spot — then wire it all up, connection by connection.

part 1

⟲ drag empty space to spin the view

Test track

Drive your robot!

Drive onto the gold star pad to earn stars. The robot's eyes auto-stop it before a crash!

👀 -- cm

⟲ drag to move camera

Keyboard works too: arrows or WASD to drive, Space for the horn.

🎯 Missions

Helper zone

The wiring map

Tap any wire in the picture (or a button below) to light it up and see what it does.

Tap a wire in the picture (or a button below) to light it up.

⚠️ Every kit is a little different — always check your kit's own chart first. The driver's ENA/ENB jumpers usually stay on.

Robot doctor

Is your robot feeling funny?

Find your problem below — almost everything has an easy fix. Grab your grown-up helper!

🌀 A wheel spins the WRONG way

Easy one! That motor's two wires are swapped. Ask your helper to swap that one motor's red and black wires on the driver board — done!

😴 Nothing turns on at all

Check three things: Is the switch ON? Are the batteries fresh and facing the right way (flat end on the spring)? Are the battery box wires screwed in tight at the driver?

💡 Lights are on, but the robot won't move

The brain might be empty! Ask your helper to upload the kit's code (the “sketch”) over USB. Also check the driver's IN1–IN4 jumper wires — one may have popped out.

🔄 It spins in circles instead of going straight

One side's motors are wired backward, or left and right got mixed up. Make sure both LEFT motors go to one side of the driver and both RIGHT motors to the other — then swap wires on the side that runs backward.

🙈 The eyes never see anything (it keeps crashing)

Check the sensor's 4 pins are snug, and that TRIG and ECHO aren't swapped — that's the #1 mix-up. The eyes must face forward and sit level, not pointing at the floor.

🐢 It moves, but super slowly

Tired batteries! Motors are hungry — even half-empty batteries make a very sleepy robot. Try a fresh set before changing anything else.

Robot brain check

The Builder's Quiz

One star for every right answer — good luck, builder!