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 Jan 02 00:50:09 2014 +0000
Revision:
21:4541da183397
Parent:
19:600deef36348
Got parallel mode working!

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 17:b4e9d8f4baa9 12
heroic 4:0b75eb84a6d2 13 #ifndef LEDSTRIP_H
heroic 4:0b75eb84a6d2 14 #define LEDSTRIP_H
heroic 4:0b75eb84a6d2 15
bikeNomad 17:b4e9d8f4baa9 16 class LedStrip
bikeNomad 17:b4e9d8f4baa9 17 {
bikeNomad 17:b4e9d8f4baa9 18 public:
bikeNomad 17:b4e9d8f4baa9 19 LedStrip(int n);
bikeNomad 17:b4e9d8f4baa9 20 ~LedStrip();
bikeNomad 17:b4e9d8f4baa9 21
bikeNomad 17:b4e9d8f4baa9 22 virtual void begin(void)=0;
bikeNomad 17:b4e9d8f4baa9 23 virtual void show(void)=0;
bikeNomad 17:b4e9d8f4baa9 24 virtual void blank(void)=0;
bikeNomad 17:b4e9d8f4baa9 25
bikeNomad 19:600deef36348 26 static uint32_t Color(uint8_t r, uint8_t g, uint8_t b);
bikeNomad 19:600deef36348 27
bikeNomad 17:b4e9d8f4baa9 28 uint16_t numPixels(void) { return numLEDs; }
bikeNomad 17:b4e9d8f4baa9 29 uint16_t numPixelBytes(void) { return numLEDs * 3; }
bikeNomad 19:600deef36348 30 uint32_t total_luminance(void);
bikeNomad 19:600deef36348 31
bikeNomad 19:600deef36348 32 void setPixelB(uint16_t n, uint8_t b);
bikeNomad 19:600deef36348 33 void setPixelG(uint16_t n, uint8_t g);
bikeNomad 19:600deef36348 34 void setPixelR(uint16_t n, uint8_t r);
bikeNomad 19:600deef36348 35
bikeNomad 19:600deef36348 36 void setPixelColor(uint16_t n, uint32_t c);
bikeNomad 19:600deef36348 37 void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b);
bikeNomad 19:600deef36348 38 void setPackedPixels(uint8_t * buffer, uint32_t n);
bikeNomad 17:b4e9d8f4baa9 39
bikeNomad 17:b4e9d8f4baa9 40 protected:
bikeNomad 17:b4e9d8f4baa9 41 uint8_t *pixels; // Holds LED color values
bikeNomad 17:b4e9d8f4baa9 42 uint16_t numLEDs; // Number of RGB LEDs in strand
heroic 4:0b75eb84a6d2 43 };
bikeNomad 21:4541da183397 44 #endif