Test program for my Multi_WS2811 library that started out as a fork of heroic/WS2811. My library uses hardware DMA on the FRDM-KL25Z to drive up to 16 strings of WS2811 or WS2812 LEDs in parallel.
Dependencies: Multi_WS2811 mbed MMA8451Q
Fork of WS2811 by
NOTE: I have accidentally pushed changes for another fork of this program that I used in the recent Georgetown Carnival Power Tool Races. When I get some time, I will restore the test program to its original glory.
You can see my power tool racer (Nevermore's Revenge) here

This tests my FRDM-KL25Z multi-string WS2811/WS2812 library. It uses the accelerometer to change the rainbow phase on two strings of LEDs as well as the touch sense to change brightness.
A video of this program in operation is here.
Here is the library that I developed to run the LEDs:
Import libraryMulti_WS2811
Library allowing up to 16 strings of 60 WS2811 or WS2812 LEDs to be driven from a single FRDM-KL25Z board. Uses hardware DMA to do a full 800 KHz rate without much CPU burden.
Colors.h@19:600deef36348, 2013-12-06 (annotated)
- Committer:
- bikeNomad
- Date:
- Fri Dec 06 06:58:12 2013 +0000
- Revision:
- 19:600deef36348
added HSB/RGB conversions; removed unnecessary virtuals
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| bikeNomad | 19:600deef36348 | 1 | #include <mbed.h> |
| bikeNomad | 19:600deef36348 | 2 | |
| bikeNomad | 19:600deef36348 | 3 | #ifndef __included_colors_h |
| bikeNomad | 19:600deef36348 | 4 | #define __included_colors_h |
| bikeNomad | 19:600deef36348 | 5 | |
| bikeNomad | 19:600deef36348 | 6 | /** |
| bikeNomad | 19:600deef36348 | 7 | * Converts the components of a color, as specified by the HSB |
| bikeNomad | 19:600deef36348 | 8 | * model, to an equivalent set of values for the default RGB model. |
| bikeNomad | 19:600deef36348 | 9 | * <p> |
| bikeNomad | 19:600deef36348 | 10 | * The <code>saturation</code> and <code>brightness</code> components |
| bikeNomad | 19:600deef36348 | 11 | * should be floating-point values between zero and one |
| bikeNomad | 19:600deef36348 | 12 | * (numbers in the range 0.0-1.0). The <code>hue</code> component |
| bikeNomad | 19:600deef36348 | 13 | * can be any floating-point number. The floor of this number is |
| bikeNomad | 19:600deef36348 | 14 | * subtracted from it to create a fraction between 0 and 1. This |
| bikeNomad | 19:600deef36348 | 15 | * fractional number is then multiplied by 360 to produce the hue |
| bikeNomad | 19:600deef36348 | 16 | * angle in the HSB color model. |
| bikeNomad | 19:600deef36348 | 17 | * <p> |
| bikeNomad | 19:600deef36348 | 18 | * The integer that is returned by <code>HSBtoRGB</code> encodes the |
| bikeNomad | 19:600deef36348 | 19 | * value of a color in bits 0-23 of an integer value that is the same |
| bikeNomad | 19:600deef36348 | 20 | * format used by the method {@link #getRGB() <code>getRGB</code>}. |
| bikeNomad | 19:600deef36348 | 21 | * This integer can be supplied as an argument to the |
| bikeNomad | 19:600deef36348 | 22 | * <code>Color</code> constructor that takes a single integer argument. |
| bikeNomad | 19:600deef36348 | 23 | * @param hue the hue component of the color |
| bikeNomad | 19:600deef36348 | 24 | * @param saturation the saturation of the color |
| bikeNomad | 19:600deef36348 | 25 | * @param brightness the brightness of the color |
| bikeNomad | 19:600deef36348 | 26 | * @return the RGB value of the color with the indicated hue, |
| bikeNomad | 19:600deef36348 | 27 | * saturation, and brightness. |
| bikeNomad | 19:600deef36348 | 28 | */ |
| bikeNomad | 19:600deef36348 | 29 | void HSBtoRGB(float hue, float saturation, float brightness, uint8_t *pr, uint8_t *pg, uint8_t *pb); |
| bikeNomad | 19:600deef36348 | 30 | |
| bikeNomad | 19:600deef36348 | 31 | /** |
| bikeNomad | 19:600deef36348 | 32 | * Converts the components of a color, as specified by the default RGB |
| bikeNomad | 19:600deef36348 | 33 | * model, to an equivalent set of values for hue, saturation, and |
| bikeNomad | 19:600deef36348 | 34 | * brightness that are the three components of the HSB model. |
| bikeNomad | 19:600deef36348 | 35 | * <p> |
| bikeNomad | 19:600deef36348 | 36 | * If the <code>hsbvals</code> argument is <code>null</code>, then a |
| bikeNomad | 19:600deef36348 | 37 | * new array is allocated to return the result. Otherwise, the method |
| bikeNomad | 19:600deef36348 | 38 | * returns the array <code>hsbvals</code>, with the values put into |
| bikeNomad | 19:600deef36348 | 39 | * that array. |
| bikeNomad | 19:600deef36348 | 40 | * @param r the red component of the color |
| bikeNomad | 19:600deef36348 | 41 | * @param g the green component of the color |
| bikeNomad | 19:600deef36348 | 42 | * @param b the blue component of the color |
| bikeNomad | 19:600deef36348 | 43 | * @param hsbvals the array used to return the |
| bikeNomad | 19:600deef36348 | 44 | * three HSB values, or <code>null</code> |
| bikeNomad | 19:600deef36348 | 45 | * @return an array of three elements containing the hue, saturation, |
| bikeNomad | 19:600deef36348 | 46 | * and brightness (in that order), of the color with |
| bikeNomad | 19:600deef36348 | 47 | * the indicated red, green, and blue components. |
| bikeNomad | 19:600deef36348 | 48 | */ |
| bikeNomad | 19:600deef36348 | 49 | float* RGBtoHSB(uint8_t r, uint8_t g, uint8_t b, float* hsbvals); |
| bikeNomad | 19:600deef36348 | 50 | |
| bikeNomad | 19:600deef36348 | 51 | #endif |
Ned Konz


Generic WS2811/WS2812