sparklabTHE LITTLE ELECTRONICS LAB
BIG IDEAS. LITTLE COMPONENTS.

What will you bring to life?

A light, a sound, a little discovery. Build it. Connect it. Try it.

My first bright ideaReady to experiment
Tap a component to edit, rotate or reverse it.
◎ Tap a terminal, then another to connect a wire.
START WITH A SPARK

Small circuits. Big discoveries.

UNDERSTAND THE SPARK

Big ideas, step by step.

Explore circuit theory with pictures, worked examples and experiments you can build.

GET TO KNOW THE LITTLE THINGS

Every part has a superpower.

Discover what components do, which way they go and how to read their values.

Read a resistor’s colourful code

For a four-band resistor, the first two colours give digits, the third is a multiplier and the fourth is tolerance.

Gold = ±5%

Example: orange · orange · brown · gold = 33 × 10 = 330 Ω, ±5%.

The three ideas behind a circuit

Voltage · V

The electrical push supplied by a battery.

Current · A

How much electric charge flows each second. 1,000 mA = 1 A.

Resistance · Ω

How much a component resists the flow. Ohm’s law: current = voltage ÷ resistance.

LEARN ONE DISCOVERY AT A TIME

Your next lightbulb moment.

Try a mission, make a prediction, then test your idea.

BUILD · LEARN · EXPERIMENT

Circuits with a story.

Illustrated lessons you can load and explore in the lab.

FROM VIRTUAL TO PHYSICAL

Make your idea real.

Parts lists, a physical PCB preview and fabrication exports for the circuit currently in your lab.

YOUR SPARK LAB ACCOUNT

Three days of discovery.

YOUR IDEAS LIVE HERE

Made by you.

Circuits are saved on this device and browser.