In doing some Google searching, I came across this video. The first few seconds are pretty nice, but I have no idea if something like this is possible with FastLED (nor would I know how to write the code). What do you guys think? Possible?
http://www.youtube.com/watch?v=jvcHy4gvkxM
The guys says that the whole panel is 4 DMX universes run off Madrix. I have yet to experiment with DMX and the FastLED lib…too cool!
It’s certainly possible to do something like this with the FastLED library. With 1300 leds, it would depend on what chipset you were using. The ws2812b would take 40ms/frame - which would, unfortuantely, limit you to about 15-20 frames/second.
With something like the LPD8806 where you can get a higher data rate, you can get a much higher FPS rate.
For arrays like this with the WS2811 and friends I tend to recommend people look at the OctoWS2811 or FadeCandy setups - as they’re designed to play with large parallel sets of strips (8 strips in parallel) - with such a low data rate you really want to push output in parallel. I’m working on parallelize code for the teensy and due platforms, but it’s not ready for prime time yet.
I currently have 500 of the Cool Neon Total Control Lighting (P9813 chipset) LEDs (likely to be 1300 next month) connected to a Teensy 3.1 and I’m seeing around 468fps. If performance scales linearly, I should still be seeing around 180fps with 1300 LEDs.
That seems like it should be fast enough. If so, then I just need to find some code samples or some theoretical articles, so I can learn how to do patterns like that!
Yeah, the p9813 can push data up to 15mbps (realistically closer to 11mbps of rgb data - which is still at least 14x higher than the ws2812.
Yep - I’m very happy with the combination of the LEDs / controller, the Teensy, and especially FastLED. Does anyone know of any sites that would be good for learning more about how to do patterns like that? I have no problem doing lots of reading,but I don’t even know where to start.
Check out the OctoWS2811 library from the guy who made the Teensy: http://www.pjrc.com/teensy/td_libs_OctoWS2811.html
It’s made for creating a led screen out of led strips.
Can you tell me what green house panel you used… This looks great
This isn’t something I built myself - I just found the video. You might be able to leave a comment for the builder on the YouTube video page.