- Try putting a ping-pong ball over the LED
- Try changing the delays to speed up or slow down the color changing
There are lots of things you can do with RGB LEDs. Check out some of the projects on the Internet using RGB LEDs and you will find multi-color persistence of vision devices, as well as all sorts of lighting effects.
About the Author
Simon Monk is author of a number of books relating to Open Source Hardware. The following books written by Simon are available from Adafruit: Programming Arduino, 30 Arduino Projects for the Evil Genius and Programming the Raspberry Pi.