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

Diff: WS2812.h

Revision:
15:331e139672b5
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WS2812.h	Thu Dec 05 15:12:47 2013 +0000
@@ -0,0 +1,42 @@
+// 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
+
+#ifdef TARGET_KL25Z
+#define MOSI_DEFAULT PTD2
+#define SCLK_DEFAULT PTC5
+#else
+#endif
+
+class WS2812 : public LedStrip
+{
+public:
+    WS2812(int n, PinName mosi = MOSI_DEFAULT, PinName sclk = SCLK_DEFAULT);
+    virtual void begin(void);
+    virtual void show(void);
+    virtual void blank(void);
+
+private:
+    SPI spi;            // to do actual communication
+
+    Timer guardtime;
+    uint32_t bogocal;
+
+    void write(uint8_t byte);
+    void writebit(bool bit);
+    void celldelay(void);
+};
+#endif
\ No newline at end of file