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Glossary

About this course

This is a small, friendly course made for one person: you. Each lesson teaches one new idea. We do not expect you to know anything before you start.

How to use it

What you will need

Three rules

Safety
Never connect the red wire (5V) directly to the black wire (GND) on the Arduino. That is called a short circuit. It can damage the board.
Care
Always unplug the USB cable before changing wires on the breadboard. Plug it back in only when you have checked your circuit.
Mindset
If something does not work, do not worry. Read the "Common mistakes" box. Most problems are tiny — one wire in the wrong hole, a missing semicolon, a backwards LED.

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