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.
Diff: WS2811.h
- Revision:
- 22:abfed71656bd
- Parent:
- 21:4541da183397
- Child:
- 23:33df42ff2541
--- a/WS2811.h Thu Jan 02 00:50:09 2014 +0000
+++ b/WS2811.h Thu Jan 02 02:31:24 2014 +0000
@@ -1,58 +1,58 @@
-// 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 40
-
-class WS2811 : public LedStrip
-{
-public:
- WS2811(unsigned n, unsigned pinNumber);
-
- virtual void begin();
- virtual void show();
- virtual void blank();
-
-private:
- Timer guardtime;
- uint32_t pinMask;
-
- void writePixel(unsigned n, uint8_t *p);
-
- // Class Static:
-
- static bool initialized;
- static uint32_t enabledPins;
-
- static void writeByte(uint8_t byte, uint32_t mask, uint32_t *dest);
- static void startDMA();
-
- static bool is_dma_done();
-
- 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();
-};
-
-#endif
+// 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
+
+class WS2811 : public LedStrip
+{
+public:
+ WS2811(unsigned n, unsigned pinNumber);
+ virtual void begin();
+ virtual void show();
+ virtual void blank();
+
+private:
+ Timer guardtime;
+ uint32_t pinMask;
+
+ void writePixel(unsigned n, uint8_t *p);
+
+ // Class Static:
+
+ static bool initialized;
+ static uint32_t enabledPins;
+
+ static void writeByte(uint8_t byte, uint32_t mask, uint32_t *dest);
+ static void startDMA();
+
+ static bool is_dma_done();
+
+ 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();
+};
+
+#endif
+
Ned Konz


Generic WS2811/WS2812