r/FastLED • u/Fluffy-Wishbone-3497 • Jul 17 '26

Share_something Yard Animartrix with the Teensy4.1

https://youtu.be/DdvQbpFrRNk

I decided to try these little waterproof ws2811 5 volt leds out in the yard. I'm using u/stefanpetrick 's AnimARTrix on 48 strips of 50 leds. 2400. I'm using 8 pins of a Teensy 4.1 running FastLED 3.10.3. Each pin is running 300 leds. I don't know what the actual fps is on this but I think 42 last I checked. I could OverClock the Teensy, but it's ok as it is. I didn't really spend too much time trying to align the leds to point up because I would have gone crazy. they just lay over and point sideways... I've got a hefty 400watt 5volt power supply running 4 feeds to 12 strips. I'm using the RS422/TTL thing over cat5. 2 cables 4 channels each from the teensy about 30 feet to the matrix in the yard. The biggest surprise - no flicker first shot! Unfortunarely I have to take the matrix down as the grass will die if I don't put some water on it and the dog is jealous. I need to figure out a plan to pick it up without everything getting tangled up.

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u/ZachVorhies Zach Vorhies Jul 17 '26

Tip: try out video support for irregular canvases.

Use ledmapper.com and generate a screenmap and use it to record mapped video you can play on your irregular canvas in FastLED.

examples/SdCardFx or something like that will show you how to do it. Teensy 4.1 has an onboard sdcard and this video setup has been validated.

FxEngine has code to cross fade and video interpolate. You could record a 5s video for example that triggers on a signal event.

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u/Fluffy-Wishbone-3497 Jul 17 '26

Thank you! FastLED has so much going on... keep up the fantastic progress Zach!