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 Heroic Robotics

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

/media/uploads/bikeNomad/img_0482.jpg

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.

LPD8806.h

Committer:
heroic
Date:
2012-09-16
Revision:
2:af5af64e114d
Parent:
1:6ebd3ac910b6
Child:
3:a415f73507c9

File content as of revision 2:af5af64e114d:

// Mbed library to control LPD8806-based RGB LED Strips
// (c) 2011 Jelmer Tiete
// This 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
//
// standard connected to 1st hardware SPI
// LPD8806  <> MBED
// DATA     -> P5
// CLOCK    -> p7
/*****************************************************************************/

#include "mbed.h"
#ifndef MBED_LPD8806_H
#define MBED_LPD8806_H

class LPD8806 {

 public:

  LPD8806(PinName dataPin, PinName clockPin, int n);
  void
    begin(void),
    show(void),
    blank(void),
    setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b),
    setPixelGB(uint16_t n, uint8_t g, uint8_t b),
    setPixelB(uint16_t n, uint8_t b),
    setPixelG(uint16_t n, uint8_t g),
    setPixelR(uint16_t n, uint8_t r),
    
    setPixelColor(uint16_t n, uint32_t c);
  uint16_t
    numPixels(void);
  uint32_t
    Color(uint8_t, uint8_t, uint8_t);

 private:
  DigitalOut dat;
  DigitalOut clk;
  void write(uint8_t byte);
  uint8_t
    *pixels;     // Holds LED color values
  uint16_t
    numLEDs;     // Number of RGB LEDs in strand
    
  void
    writezeros(uint16_t n);
};
#endif