“Create a simple color mixer which can display up to 16 million colors!
This is a tutorial on how to create my version of a color mixer.
A joystick is the main form of control in this project. It controls the strip’s RGB values, which determine the intensity of color of the LEDs on the strip. An OLED displays these values.
You can optionally include buttons of your own and code them to display certain patterns (you can find some neat patterns in the NeoPixel library examples folder).”