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 11:d127f93be182, committed 2013-02-20

Comitter:
heroic
Date:
Wed Feb 20 03:38:25 2013 +0000
Parent:
10:62368b801d16
Child:
12:7ebd51549c04
Commit message:
Fix timing on ws2811.

Changed in this revision

WS2811.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/WS2811.cpp	Tue Feb 19 08:39:39 2013 +0000
+++ b/WS2811.cpp	Wed Feb 20 03:38:25 2013 +0000
@@ -25,7 +25,7 @@
         /* do nothing */;
     i=guardtime.read_us();
     printf("ws2811:  1000 iters took %d usec.\n", i);
-    bogocal = (1000 / (onewire_speed_multiplier * i * 2.4)); // iterations per bitcell (417 nsec)
+    bogocal = (1000 / (onewire_speed_multiplier * i * 4.2)); // iterations per bitcell (417 nsec)
     printf("ws2811:  calibrating to %d bogojiffies.\n", bogocal);
 }