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.
LedStrip.h
- Committer:
- bikeNomad
- Date:
- 2013-12-05
- Revision:
- 17:b4e9d8f4baa9
- Parent:
- 12:7ebd51549c04
- Child:
- 19:600deef36348
File content as of revision 17:b4e9d8f4baa9:
// Parent class for all addressable LED strips.
// Partially based on work by and (c) 2011 Jelmer Tiete
// whose library is ported from the Arduino implementation of Adafruit Industries
// found at: http://github.com/adafruit/LPD8806
// and their strips: http://www.adafruit.com/products/306
// Released under the MIT License: http://mbed.org/license/mit
// This is a pure virtual parent class for all LED strips, so that different types
// of strip may be used in a single array or container.
#include "mbed.h"
#ifndef LEDSTRIP_H
#define LEDSTRIP_H
class LedStrip
{
public:
LedStrip(int n);
~LedStrip();
virtual void begin(void)=0;
virtual void show(void)=0;
virtual void blank(void)=0;
uint16_t numPixels(void) { return numLEDs; }
uint16_t numPixelBytes(void) { return numLEDs * 3; }
virtual uint32_t Color(uint8_t, uint8_t, uint8_t);
virtual uint32_t total_luminance(void);
virtual void setPixelB(uint16_t n, uint8_t b);
virtual void setPixelG(uint16_t n, uint8_t g);
virtual void setPixelR(uint16_t n, uint8_t r);
virtual void setPixelColor(uint16_t n, uint32_t c);
virtual void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b);
virtual void setPackedPixels(uint8_t * buffer, uint32_t n);
protected:
uint8_t *pixels; // Holds LED color values
uint16_t numLEDs; // Number of RGB LEDs in strand
};
#endif
Ned Konz


Generic WS2811/WS2812