You must first complete RGB Animation: Part I – Breathing Animation before viewing this Lesson
RGB Animation: Part 2 - Color Cycle
Introduction
We will now apply what we learned on Part 1 to create a color cycle that fades across all the colors in the neopixel.
Components Needed
- Little Python Brain
- A tablet/phone/laptop
Steps
1
Inversely proportional relationships
For the colors to cycle through red, green, and blue, we want to make a code that utilizes a basic inversely proportional relation.
Simply put, as one goes higher (i), the other one decreases (255-i).
This means that when i = 0,
Red is 255 and Green is 0
And when i = 255,
Red is 0 and Green is 255.
2
More for loops
Simply copy the for loop above a couple of times and do one that changes from red to green, from green to blue, and finally from blue to off.
The Complete Code
Try changing around the sleep duration to observe different speeds