Ned Konz / Mbed 2 deprecated Multi_WS2811_test

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.

Last commit 13 Jun 2015 by Ned Konz

WS2811.h

Committer:
heroic
Date:
2013-04-11
Revision:
12:7ebd51549c04
Parent:
8:e3249c2b7607
Child:
13:1f65330abe92

File content as of revision 12:7ebd51549c04:

// Mbed library to control WS2801-based RGB LED Strips
// some portions (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
//
/*****************************************************************************/

// Heavily modified by Jas Strong, 2012-10-04
// Changed to use a virtual base class and to use software SPI.

#include "mbed.h"
#include "LedStrip.h"
#ifndef MBED_WS2811_H
#define MBED_WS2811_H


class WS2811 : public LedStrip {

 public:

  WS2811(PinName dataPin, PinName clockPin, int n);
  virtual void begin(void);
  virtual void show(void);
  virtual void blank(void);
  virtual void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b);
  virtual void setPackedPixels(uint8_t * buffer, uint32_t n);
  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 uint16_t numPixels(void);
  virtual uint32_t Color(uint8_t, uint8_t, uint8_t);
  virtual uint32_t total_luminance(void);

 private:
  DigitalOut dat;
  DigitalOut clk;
  void write(uint8_t byte);
  void writebit(bool bit);
  void celldelay(void);
  uint8_t *pixels;     // Holds LED color values
  uint16_t numLEDs;     // Number of RGB LEDs in strand
  Timer guardtime;
  uint32_t bogocal;
    
};
#endif