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

WS2812.h@15:331e139672b5, 2013-12-05 (annotated)

Committer:
bikeNomad
Date:
Thu Dec 05 15:12:47 2013 +0000
Revision:
15:331e139672b5
inlined bit writes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bikeNomad 15:331e139672b5 1 // Mbed library to control WS2801-based RGB LED Strips
bikeNomad 15:331e139672b5 2 // some portions (c) 2011 Jelmer Tiete
bikeNomad 15:331e139672b5 3 // This library is ported from the Arduino implementation of Adafruit Industries
bikeNomad 15:331e139672b5 4 // found at: http://github.com/adafruit/LPD8806
bikeNomad 15:331e139672b5 5 // and their strips: http://www.adafruit.com/products/306
bikeNomad 15:331e139672b5 6 // Released under the MIT License: http://mbed.org/license/mit
bikeNomad 15:331e139672b5 7 //
bikeNomad 15:331e139672b5 8 /*****************************************************************************/
bikeNomad 15:331e139672b5 9
bikeNomad 15:331e139672b5 10 // Heavily modified by Jas Strong, 2012-10-04
bikeNomad 15:331e139672b5 11 // Changed to use a virtual base class and to use software SPI.
bikeNomad 15:331e139672b5 12
bikeNomad 15:331e139672b5 13 #include "mbed.h"
bikeNomad 15:331e139672b5 14 #include "LedStrip.h"
bikeNomad 15:331e139672b5 15 #ifndef MBED_WS2811_H
bikeNomad 15:331e139672b5 16 #define MBED_WS2811_H
bikeNomad 15:331e139672b5 17
bikeNomad 15:331e139672b5 18 #ifdef TARGET_KL25Z
bikeNomad 15:331e139672b5 19 #define MOSI_DEFAULT PTD2
bikeNomad 15:331e139672b5 20 #define SCLK_DEFAULT PTC5
bikeNomad 15:331e139672b5 21 #else
bikeNomad 15:331e139672b5 22 #endif
bikeNomad 15:331e139672b5 23
bikeNomad 15:331e139672b5 24 class WS2812 : public LedStrip
bikeNomad 15:331e139672b5 25 {
bikeNomad 15:331e139672b5 26 public:
bikeNomad 15:331e139672b5 27 WS2812(int n, PinName mosi = MOSI_DEFAULT, PinName sclk = SCLK_DEFAULT);
bikeNomad 15:331e139672b5 28 virtual void begin(void);
bikeNomad 15:331e139672b5 29 virtual void show(void);
bikeNomad 15:331e139672b5 30 virtual void blank(void);
bikeNomad 15:331e139672b5 31
bikeNomad 15:331e139672b5 32 private:
bikeNomad 15:331e139672b5 33 SPI spi; // to do actual communication
bikeNomad 15:331e139672b5 34
bikeNomad 15:331e139672b5 35 Timer guardtime;
bikeNomad 15:331e139672b5 36 uint32_t bogocal;
bikeNomad 15:331e139672b5 37
bikeNomad 15:331e139672b5 38 void write(uint8_t byte);
bikeNomad 15:331e139672b5 39 void writebit(bool bit);
bikeNomad 15:331e139672b5 40 void celldelay(void);
bikeNomad 15:331e139672b5 41 };
bikeNomad 15:331e139672b5 42 #endif