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.

Committer:
bikeNomad
Date:
Thu Dec 05 15:12:47 2013 +0000
Revision:
15:331e139672b5
Parent:
12:7ebd51549c04
Child:
19:600deef36348
inlined bit writes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
heroic 4:0b75eb84a6d2 1 // Parent class for all addressable LED strips.
heroic 4:0b75eb84a6d2 2 // Partially based on work by and (c) 2011 Jelmer Tiete
heroic 4:0b75eb84a6d2 3 // whose library is ported from the Arduino implementation of Adafruit Industries
heroic 4:0b75eb84a6d2 4 // found at: http://github.com/adafruit/LPD8806
heroic 4:0b75eb84a6d2 5 // and their strips: http://www.adafruit.com/products/306
heroic 4:0b75eb84a6d2 6 // Released under the MIT License: http://mbed.org/license/mit
heroic 4:0b75eb84a6d2 7
heroic 4:0b75eb84a6d2 8 // This is a pure virtual parent class for all LED strips, so that different types
heroic 4:0b75eb84a6d2 9 // of strip may be used in a single array or container.
heroic 4:0b75eb84a6d2 10
heroic 4:0b75eb84a6d2 11 #include "mbed.h"
bikeNomad 15:331e139672b5 12
heroic 4:0b75eb84a6d2 13 #ifndef LEDSTRIP_H
heroic 4:0b75eb84a6d2 14 #define LEDSTRIP_H
heroic 4:0b75eb84a6d2 15
bikeNomad 15:331e139672b5 16 class LedStrip
bikeNomad 15:331e139672b5 17 {
bikeNomad 15:331e139672b5 18 public:
bikeNomad 15:331e139672b5 19 LedStrip(int n);
bikeNomad 15:331e139672b5 20 ~LedStrip();
bikeNomad 15:331e139672b5 21
bikeNomad 15:331e139672b5 22 virtual void begin(void)=0;
bikeNomad 15:331e139672b5 23 virtual void show(void)=0;
bikeNomad 15:331e139672b5 24 virtual void blank(void)=0;
bikeNomad 15:331e139672b5 25
bikeNomad 15:331e139672b5 26 uint16_t numPixels(void) { return numLEDs; }
bikeNomad 15:331e139672b5 27 uint16_t numPixelBytes(void) { return numLEDs * 3; }
bikeNomad 15:331e139672b5 28 virtual uint32_t Color(uint8_t, uint8_t, uint8_t);
bikeNomad 15:331e139672b5 29 virtual uint32_t total_luminance(void);
bikeNomad 15:331e139672b5 30 virtual void setPixelB(uint16_t n, uint8_t b);
bikeNomad 15:331e139672b5 31 virtual void setPixelG(uint16_t n, uint8_t g);
bikeNomad 15:331e139672b5 32 virtual void setPixelR(uint16_t n, uint8_t r);
bikeNomad 15:331e139672b5 33 virtual void setPixelColor(uint16_t n, uint32_t c);
bikeNomad 15:331e139672b5 34 virtual void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b);
bikeNomad 15:331e139672b5 35 virtual void setPackedPixels(uint8_t * buffer, uint32_t n);
bikeNomad 15:331e139672b5 36
bikeNomad 15:331e139672b5 37 protected:
bikeNomad 15:331e139672b5 38 uint8_t *pixels; // Holds LED color values
bikeNomad 15:331e139672b5 39 uint16_t numLEDs; // Number of RGB LEDs in strand
heroic 4:0b75eb84a6d2 40 };
heroic 4:0b75eb84a6d2 41 #endif