Sending Bytes to an 8x8 LED Matrix.

This example demonstrates how to use LDR as a switch; each time you cover the LDR, the LED is turned on (if it's off), and off (if it's on).

LED cube 4x4x4, 64 LED diode, 16 forms of work.

Use Arduino to run a spectacular Christmas light show. (Both in English and Spanish, en Ingles y Español.)

Now, you can control your light system in your home using your voice , by talking to your systems which to turn on and which to turn off

Simulate a traffic light using an Arduino and LEDs! This project is super cool to watch and easy to make!

Using the microphone of your mobile phone to control the led cube according to the loudness (decibels).

Portable LED panels let you dress us like your favorite 8-bit video game characters.

By controlling the LED strip from a computer, you can do almost anything! I used it to create a dancing light show for music.

IKEA PS 2014 Pendant Lamp Modification

You just bought a RGB LED strip kit and you would like to get rid of that cheap hand-held IR remote and to have REAL control.

Uses a photo resistor to determine whether a room is bright, average or dark. It shows this using 3 LEDs and/or the serial monitor.

Build a convincing artificial fire effect for the holiday season using NeoPixel LEDs, an Arduino UNO, and a cool mist module.

A simple Arduino assembly that checks temperature and sets an RGB LED from blue to red.

Set up your Arduino and Raspberry Pi to control lighting and animation on an RGB LED strip from your smartphone or PC.

Because LED are fun - but addressable rocks. :)

I taught a class on Communication Systems using programming, machines and Morse code.

In this project, we will print out Morse Code of a sentence typed in Serial Monitor by flashing LED for each word and space between them.

A little tidbit on how to make smooth, step based colour transitions for RGB LEDs in Johnny-Five!

Learn to use Bluetooth wireless to control all kinds of AC devices from your smartphone.

This project will let you have some fun playing with colors using Arduino analog input / output. Change colors with just a twist.

Receive the signal and control an LED.

Using the power of motion, swipe in 4 directions to change the color of an LED!

Control your LED on Arduino UNO using Blynk App.