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What is it?
Light Emitting Diode — a special diode that produces light when current flows through it. In your Robotik kit you have four colors. They're the first thing you'll bring to life.
The Simple Analogy
“A diode that glows! Connect it the right way and it lights up.”
All Concepts
What is Electricity?What is Voltage?What is Current?What is Resistance?What is a Resistor?What is a Diode?What is an LED?What is a Capacitor?What is a Transistor?What is a Microcontroller?What is an Electron?What is a Conductor?What is an Insulator?What is Electrical Isolation?What is a Battery?What is an Arduino Board?What is a Switch?What is a Circuit?What is Transconductance?What is Frequency?What is a Signal?