2014-04-14

Hello,

I’m trying to figure out how to control a string of addressable WS2801 LED lights from Raspberry Pi. I need it to be a timed sequence of lights to a mp3 file.

I saw that there’s a post from mrpackethead that does this, but it’s from 2012:
Art-net-E1-31-DMX-controlled-Video-Audio-player-using-Rasbperry-PI

I understand that Vixen had a major update from 2 to 3, which changed everything. I also understand that OpenDMX has changed to OpenLighting, and also change everything. In other words, it no longer works.

I have (what I think) is a timed sequence of lights in Vixen 3. I made a Generic Numbered Group of 7 RGB LEDs as a test (attached). I also have a Raspberry Pi Model B with 512 RAM and a string of WS2801 LED lights:
Adafruit LED lights

I have a WS2801 bridge connected between the Raspberry Pi and the string of lights:
Raspberry Pi WS2801 Bridge Kit

I’m able to run the demo lights image and the lights do turn on, so the hardware works. I’m having a problem with the software, however.

I’m running an image of the Open Lighting Architecture (OLA) from the start up guide here:
OLA on Raspberry Pi Tutorial

I’m able to access the OLA webpage from the Raspberry Pi successfully. But I’m not sure how to go from here. My questions are:

How do I get an output file from Vixen 3? I’ve got a .TIM file, and no other option to export the file.

What plug in / universe do I need on OLA? The tutorial is incomplete.

How do I get the music to play on the Raspberry Pi? The omxplayer file is no longer included on the OLA image.

I know there's an update for Vixen that includes a Raspberry Pi player (supposedly) sometime in the middle of this year:
Vixen 2014 Roadmap

Unfortunately, I can't wait that long. I need to have something put together by mid May.

Is there anyone that can help me, in terms of a starting point or documentation? Am I using the right software? At this point I'm very lost, and anything would be appreciated.

Thanks

Graham Best

Attached Files

Test.tim
(337.5 KB)

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