OctoWS2811 VideoDisplay + FastLED

[drichelson]

Hi,
I'm working on a project that uses a Teensy 3.2 running this: https://github.com/PaulStoffregen/OctoWS2811/blob/master/examples/VideoDisplay/VideoDisplay.ino. I'm not displaying video (actually about 1000 leds mapped on a sphere). I'd like to get the color correction goodness of FastLED. I think this shouldn't be too difficult- has anyone done this before? Also I'm willing to consider other suggestions.

I have it working (without FastLED) using a modified version of the example processing sketch (ported to Scala and pushing data over USB using http://fazecast.github.io/jSerialComm/

My current hardware implementation only uses ~1000 LEDs, but I want to be able to scale it out, so maintaining multi-teensy support would be nice.

In summary the system would look like this:
PC/RPi generates frame of RGB values, sends data over USB to Teensy running FastLED which adjusts colors and renders using code similar to this:
https://github.com/FastLED/FastLED/blob/master/examples/Multiple/OctoWS2811Demo/OctoWS2811Demo.ino

 

[GremlinWrangler]

If I understand what you want to do, see
https://github.com/FastLED/FastLED/wiki/Parallel-Output
Which is how to use parallel out data from fastLED, such as via an OctoWS board. Unsure if there is an existing example with using fastLED with data streaming via USB

 

[drichelson]

Yes- I forgot to add the last bit (see edit)

 

[drichelson]

I got this working- it's pretty straightforward if you don't try to unpack the bits as-is and instead send over bytes for each fastled pixel's r, g, b fields.