
The Light-Emitting Diode (LED) is a really fun component that creates light. When you know how it works and how to use it you can create your own flashlight, model train indicators, toys with lights, party lights, Christmas tree lights, and much much more. Every project becomes better with LEDs!
In this course, you'll learn the basics of LEDs so that you can choose resistors for LEDs with confidence, power up a LED strip, and much more. You'll play with LED brightness, color mixing, and even build your own USB LED light.








Components
To build the experiments in this course, you're going to need:
- Breadboard
- 9V battery
- 9V battery clip
- Jumper wires
- Normal LED (Ex: 5mm Red, Green, or Yellow)
- RGB LED (Common Cathode)
- White LED x5
- 180 Ω resistor x8
- 330 Ω resistor x1
- 680 Ω resistors x3
- 1 kΩ resistor x 1
- 10 kΩ resistor x 1
- Pushbuttons x3
- Thermistor 10 kΩ
- Arduino UNO
- An old USB charging cable
- Prototype board for soldering
Members Only Section
Hey there! To get access to this and all the other resources to learn electronics with Ohmify, you need to be a member.
Lessons in this Course:
- The Basics of LEDs
- LED Forward Voltage
- Choosing a Resistor for Your LED
- Types of LEDs
- Experiment: LED Brightness
- Connecting Multiple LEDs
- Experiment: USB LED Lamp
- Using PWM for LED Brightness
- RGB LEDs – Whatever Color You Want
- Experiment: Testing an RGB LED
- Experiment: Arduino Thermometer
- LED Strips
- Power LEDs
- More LED Projects