Beginning Arduino Programming

Project 2: 7-Color Blink

If you’ll remember the RGB color wheel in Figure 2-1 of the last chapter, we can mix red, green, and blue light to create millions of different colors. For our next project, we will take the simple three-color sketch from the last chapter and improve upon it by introducing simple color mixing to get seven colors, while pausing for a little longer on white for effect. This will give us an opportunity to introduce working with variables and demonstrate some basic operations, as well.

Hooking It Up

This project uses the very same hardware from the last chapter, as shown in Figures 3-1 and 3-2, which only make a repeat appearance here for convenience sake.

Figure 3-1. 7-Color Blink schematic

Figure 3-2. 7-Color ...