Visual firstSee it, then read about it.
Every idea starts with something you can look at and move: current flowing round a loop, a servo turning to an angle, a byte travelling down two wires. The words come after the picture.
Make electronics make sense,
before you buy a single part.
Our mission is to make the foundations of electronics, IoT and mechatronics understandable to anyone. You should be able to see how a sensor, a motor or a small computer works, and try it yourself, with nothing but a browser.
Most people stop at the parts list.
We want them to start with a question.
A first circuit usually begins with a shopping list: a board, a breadboard, resistors, LEDs, jumper wires. Then software to install, a driver, an error message. Plenty of curious people give up there, before they ever see why the LED lights up.
We put understanding first. Once you know what each part does and how the code talks to it, buying the parts is a small step, and your first real build is much more likely to work.
Five principles.
The rules we write lessons by.
HonestSay what it is, and what it is not.
Simulations are teaching models and boards are stylised. When something behaves differently on real hardware, we say so. We do not invent numbers, reviews or results.
TransparencyFree to startOpen a lesson and begin.
There is nothing to sign up for and nothing to pay before you start. You do not need a kit either: every lesson works on screen first.
Private by defaultYour progress stays on your device.
No accounts, no analytics, no ads and no tracking pixels. Progress, settings and code drafts are kept in your own browser and never sent to us.
Privacy policyAccessibleFor more people, on more devices.
Keyboard controls, reduced-motion support, readable type and layouts that work down to phone width. If something gets in your way, tell us and we will work on it.
What that means in a lesson.
A blinking LED is a small thing. Understanding why it blinks is where robots, weather stations and cameras that recognise birds begin.