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

Files at this revision

API Documentation at this revision

Revision 14:c97261a9a282, committed 2013-07-28

Comitter:
heroic
Date:
Sun Jul 28 08:38:18 2013 +0000
Parent:
13:1f65330abe92
Child:
15:331e139672b5
Child:
16:5f75ea93f15d
Commit message:
Cleanup.

Changed in this revision

WS2811.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/WS2811.cpp	Tue Jul 23 22:32:14 2013 +0000
+++ b/WS2811.cpp	Sun Jul 28 08:38:18 2013 +0000
@@ -15,7 +15,8 @@
     clk(clockPin) {
     // Allocate 3 bytes per pixel:
     numLEDs = n;
-    if ((pixels = (uint8_t *)malloc(numLEDs * 3))) {
+    pixels = (uint8_t *)malloc(numLEDs * 3);
+    if (pixels) {
         memset(pixels, 0x00, numLEDs * 3); // Init to RGB 'off' state
     }
     // calibrate delay loops for NRZ