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.
LedStrip.h@17:b4e9d8f4baa9, 2013-12-05 (annotated)
- Committer:
- bikeNomad
- Date:
- Thu Dec 05 15:25:16 2013 +0000
- Revision:
- 17:b4e9d8f4baa9
- Parent:
- 12:7ebd51549c04
- Child:
- 19:600deef36348
renamed ws2812.* to ws2811.*
Who changed what in which revision?
| User | Revision | Line number | New 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 | 17:b4e9d8f4baa9 | 26 | uint16_t numPixels(void) { return numLEDs; } |
| bikeNomad | 17:b4e9d8f4baa9 | 27 | uint16_t numPixelBytes(void) { return numLEDs * 3; } |
| bikeNomad | 17:b4e9d8f4baa9 | 28 | virtual uint32_t Color(uint8_t, uint8_t, uint8_t); |
| bikeNomad | 17:b4e9d8f4baa9 | 29 | virtual uint32_t total_luminance(void); |
| bikeNomad | 17:b4e9d8f4baa9 | 30 | virtual void setPixelB(uint16_t n, uint8_t b); |
| bikeNomad | 17:b4e9d8f4baa9 | 31 | virtual void setPixelG(uint16_t n, uint8_t g); |
| bikeNomad | 17:b4e9d8f4baa9 | 32 | virtual void setPixelR(uint16_t n, uint8_t r); |
| bikeNomad | 17:b4e9d8f4baa9 | 33 | virtual void setPixelColor(uint16_t n, uint32_t c); |
| bikeNomad | 17:b4e9d8f4baa9 | 34 | virtual void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b); |
| bikeNomad | 17:b4e9d8f4baa9 | 35 | virtual void setPackedPixels(uint8_t * buffer, uint32_t n); |
| bikeNomad | 17:b4e9d8f4baa9 | 36 | |
| bikeNomad | 17:b4e9d8f4baa9 | 37 | protected: |
| bikeNomad | 17:b4e9d8f4baa9 | 38 | uint8_t *pixels; // Holds LED color values |
| bikeNomad | 17:b4e9d8f4baa9 | 39 | uint16_t numLEDs; // Number of RGB LEDs in strand |
| heroic | 4:0b75eb84a6d2 | 40 | }; |
| heroic | 4:0b75eb84a6d2 | 41 | #endif |
Ned Konz


Generic WS2811/WS2812