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.

Revision:
31:c9eee3a33826
Parent:
30:52e9205a8059
Child:
32:115032de785f
--- a/WS2811.h	Sat Jan 04 00:32:16 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,63 +0,0 @@
-// 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.
-//
-// Modified by Ned Konz, December 2013.
-// Using three-phase DMA ala Paul Stoffegren's version.
-
-#ifndef MBED_WS2811_H
-#define MBED_WS2811_H
-
-#include "mbed.h"
-#include "LedStrip.h"
-
-#define MAX_LEDS_PER_STRIP 60
-
-extern "C" void DMA0_IRQHandler();
-extern "C" void TPM0_IRQHandler();
-
-class WS2811 : public LedStrip
-{
-public:
-    WS2811(unsigned n, unsigned pinNumber);
-
-    virtual void begin();
-    virtual void show();
-    virtual void blank();
-
-    static void startDMA();
-
-private:
-    uint32_t pinMask;
-
-    void writePixel(unsigned n, uint8_t *p);
-
-    // Class Static:
-
-    static bool initialized;
-    static uint32_t enabledPins;
-    static volatile bool dma_done;
-    static void wait_for_dma_done() { while (!dma_done) __WFI(); }
-
-    static void writeByte(uint8_t byte, uint32_t mask, uint32_t *dest);
-
-    static void hw_init();
-        static void io_init();
-        static void clock_init();
-        static void dma_init();
-        static void tpm_init();
-        static void dma_data_init();
-        
-    friend void TPM0_IRQHandler();
-};
-
-#endif
-