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.

Revisions of WS2811.cpp

Revision Date Message Actions
29:a76075c853ee 2014-01-03 fixed bit timing to eliminate flickering. File  Diff  Annotate
26:ac5d0e18c7b6 2014-01-02 adjusted timing from 420/840 nsec to 350/700 per datasheet File  Diff  Annotate
25:751c89f7e654 2014-01-02 added second light strip to demo. File  Diff  Annotate
23:33df42ff2541 2014-01-02 smoothed animation; added frames/sec count (now at 341 for rainbow) File  Diff  Annotate
21:4541da183397 2014-01-02 Got parallel mode working! File  Diff  Annotate
20:b9d76e567637 2013-12-21 still trying to get DMA to work File  Diff  Annotate
17:b4e9d8f4baa9 2013-12-05 renamed ws2812.* to ws2811.* File  Diff  Annotate
16:5f75ea93f15d 2013-10-10 Bump version, add register debug. File  Diff  Annotate
14:c97261a9a282 2013-07-28 Cleanup. File  Diff  Annotate
13:1f65330abe92 2013-07-23 Rework timing for constant execution time; do direct bitband writes for improved speed; change interrupt handling (turns out we can't have interrupts during an entire strip push, not just between bits).; ; Now works! File  Diff  Annotate
12:7ebd51549c04 2013-04-11 Add function to write packed pixels via memcpy (about 150 usec faster) File  Diff  Annotate
11:d127f93be182 2013-02-20 Fix timing on ws2811. File  Diff  Annotate
10:62368b801d16 2013-02-19 Add ability to slow down ws2811 communications File  Diff  Annotate
9:dd524af149e6 2012-11-14 Mask interrupts during critical section. File  Diff  Annotate
8:e3249c2b7607 2012-11-10 Initial commit for first cut of WS2811 driver. These are one-wire style devices, so we do some timing mojo. File  Diff  Annotate