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:
- 33:43b504e417e3
- Parent:
- 32:115032de785f
- Child:
- 34:cd56c00ed910
diff -r 115032de785f -r 43b504e417e3 main.cpp
--- a/main.cpp Thu Jun 11 15:24:57 2015 +0000
+++ b/main.cpp Thu Jun 11 15:33:47 2015 +0000
@@ -127,11 +127,11 @@
for (;;) {
acc.getAccAllAxis(xyz);
- rled = 1.0 - abs(xyz[0]);
- gled = 1.0 - abs(xyz[1]);
+ rled = 1.0 - fabs(xyz[0]);
+ gled = 1.0 - fabs(xyz[1]);
readTouchSensor();
- showRainbow(lightStrip1, sat, brite, abs(xyz[0]));
- showRainbow(lightStrip2, sat, brite, abs(xyz[1]));
+ showRainbow(lightStrip1, sat, brite, fabs(xyz[0]));
+ showRainbow(lightStrip2, sat, brite, fabs(xyz[1]));
MyWS2811::startDMA();
frames ++;
Ned Konz


Generic WS2811/WS2812