This Instructable lays out how to construct and code an ambient LED light using an Arduino board and some common circuit components. This project mixes a red, green, and blue LED to get a wide range of colors, and the Arduino cycles through them. The paper cover is used to diffuse the light from the discrete LEDs into a more uniform hue. This project is ideal to add some mood lighting to a dark room using the Arduino and some common, cheap materials.
The Arduino is a useful, versatile board for the electrical hobbyist, but it takes practice to master. This tutorial is accessible to anyone starting to work with or interested in using an Arduino board for electrical or art hobby projects. No prior electrical or coding experience is necessary to complete or tweak this project. However, some knowledge on the C programming language and basic circuitry will be useful to expand on the design. The project takes about 15 minutes to assemble.
Step 1: Gather the Materials
- Arduino Uno board (older boards should be compatible)
- USB A to USB B connector cable
- Computer with Arduino IDE software
- Arduino solder-less breadboard shield
- 3 resistors (330 ohm)
- Red LED
- Green LED
- Blue LED
- breadboard connector wire
- white paper
The Arduino Software (compiler and IDE) can be found here: http://www.arduino.cc/en/Main/software
Some of these materials can be substituted if they are not readily available:
- A regular breadboard can be used instead of the breadboard shield.
- Other resistors can be used, just try to find three identical resistors between 330 and 1000 ohms.
- Any different color LEDs can be used in this project.