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.
Diff: main.cpp
- Revision:
- 19:600deef36348
- Parent:
- 18:d98353e8c61c
- Child:
- 20:b9d76e567637
diff -r d98353e8c61c -r 600deef36348 main.cpp --- a/main.cpp Thu Dec 05 15:39:39 2013 +0000 +++ b/main.cpp Fri Dec 06 06:58:12 2013 +0000 @@ -1,7 +1,24 @@ #include "mbed.h" #include "WS2811.h" +#include "Colors.h" int main(void) { - WS2811 lightStrip(60*4, PTD2, PTD3); + const unsigned nLEDs = 60*4; + + // NLEDs MOSI SCK + WS2811 lightStrip(nLEDs, PTD2, PTD3); + + float sat = 1.0; + float brite = 0.25; + for (float hueShift = 0.0; hueShift < 10.0; hueShift += 1.0 / 20) { + for (unsigned i = 0; i < nLEDs; i++) { + uint8_t r, g, b; + float hue = ((float)i / (float)nLEDs) + hueShift; + HSBtoRGB(hue, sat, brite, &r, &g, &b); + lightStrip.setPixelColor(i, LedStrip::Color(r, g, b)); + } + lightStrip.begin(); + wait(0.5); + } } \ No newline at end of file