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.
LPD8806.h@4:0b75eb84a6d2, 2012-10-05 (annotated)
- Committer:
- heroic
- Date:
- Fri Oct 05 05:41:39 2012 +0000
- Revision:
- 4:0b75eb84a6d2
- Parent:
- 3:a415f73507c9
Change to use virtual base class
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| ehbmbed2 | 0:12e734116fea | 1 | // Mbed library to control LPD8806-based RGB LED Strips |
| ehbmbed2 | 0:12e734116fea | 2 | // (c) 2011 Jelmer Tiete |
| ehbmbed2 | 0:12e734116fea | 3 | // This library is ported from the Arduino implementation of Adafruit Industries |
| ehbmbed2 | 0:12e734116fea | 4 | // found at: http://github.com/adafruit/LPD8806 |
| ehbmbed2 | 0:12e734116fea | 5 | // and their strips: http://www.adafruit.com/products/306 |
| ehbmbed2 | 0:12e734116fea | 6 | // Released under the MIT License: http://mbed.org/license/mit |
| ehbmbed2 | 1:6ebd3ac910b6 | 7 | // |
| ehbmbed2 | 0:12e734116fea | 8 | /*****************************************************************************/ |
| ehbmbed2 | 0:12e734116fea | 9 | |
| heroic | 4:0b75eb84a6d2 | 10 | // Heavily modified by Jas Strong, 2012-10-04 |
| heroic | 4:0b75eb84a6d2 | 11 | // Changed to use a virtual base class and to use software SPI. |
| heroic | 4:0b75eb84a6d2 | 12 | |
| ehbmbed2 | 0:12e734116fea | 13 | #include "mbed.h" |
| heroic | 4:0b75eb84a6d2 | 14 | #include "LedStrip.h" |
| ehbmbed2 | 0:12e734116fea | 15 | #ifndef MBED_LPD8806_H |
| ehbmbed2 | 0:12e734116fea | 16 | #define MBED_LPD8806_H |
| ehbmbed2 | 0:12e734116fea | 17 | |
| heroic | 4:0b75eb84a6d2 | 18 | class LPD8806 : public LedStrip { |
| ehbmbed2 | 0:12e734116fea | 19 | |
| ehbmbed2 | 0:12e734116fea | 20 | public: |
| ehbmbed2 | 0:12e734116fea | 21 | |
| heroic | 2:af5af64e114d | 22 | LPD8806(PinName dataPin, PinName clockPin, int n); |
| heroic | 4:0b75eb84a6d2 | 23 | virtual void begin(void); |
| heroic | 4:0b75eb84a6d2 | 24 | virtual void show(void); |
| heroic | 4:0b75eb84a6d2 | 25 | virtual void blank(void); |
| heroic | 4:0b75eb84a6d2 | 26 | virtual void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b); |
| heroic | 4:0b75eb84a6d2 | 27 | virtual void setPixelB(uint16_t n, uint8_t b); |
| heroic | 4:0b75eb84a6d2 | 28 | virtual void setPixelG(uint16_t n, uint8_t g); |
| heroic | 4:0b75eb84a6d2 | 29 | virtual void setPixelR(uint16_t n, uint8_t r); |
| heroic | 4:0b75eb84a6d2 | 30 | virtual void setPixelColor(uint16_t n, uint32_t c); |
| heroic | 4:0b75eb84a6d2 | 31 | virtual uint16_t numPixels(void); |
| heroic | 4:0b75eb84a6d2 | 32 | virtual uint32_t Color(uint8_t, uint8_t, uint8_t); |
| ehbmbed2 | 0:12e734116fea | 33 | |
| ehbmbed2 | 0:12e734116fea | 34 | private: |
| heroic | 2:af5af64e114d | 35 | DigitalOut dat; |
| heroic | 2:af5af64e114d | 36 | DigitalOut clk; |
| heroic | 2:af5af64e114d | 37 | void write(uint8_t byte); |
| heroic | 4:0b75eb84a6d2 | 38 | uint8_t *pixels; // Holds LED color values |
| heroic | 4:0b75eb84a6d2 | 39 | uint16_t numLEDs; // Number of RGB LEDs in strand |
| ehbmbed2 | 0:12e734116fea | 40 | |
| ehbmbed2 | 0:12e734116fea | 41 | void |
| ehbmbed2 | 0:12e734116fea | 42 | writezeros(uint16_t n); |
| ehbmbed2 | 0:12e734116fea | 43 | }; |
| ehbmbed2 | 0:12e734116fea | 44 | #endif |
Ned Konz


Generic WS2811/WS2812