This is one of the simplest circuits to build. It's just a resistor that controls the current through an LED. When you power it on, the LED lights up.
The Circuit
The size of the resistor sets the current for the circuit. The more current, the brigther the LED.
Parts List
| Reference | Value |
|---|---|
| Battery | 9V |
| LED | Red Light-Emitting Diode |
| Resistor | 470 Ω |
The Layout
Here's an example of how you can connect this on a breadboard.
