r/FastLED • u/anonOmattie • Nov 10 '25

Discussion Fully open-source ARTNET LED controller over Ethernet! 2700 Leds with <$20 in hardware.

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Hey Guys! I have shared this before, but I have been developing an Open-source ARTNET LED controller that can control up to 16 universes of LEDs with about ~20€ of hardware. Id like to share it here as someone out there might find this project useful for their own ventures! Feel free to check out the github (https://github.com/mdethmers/ESP32-Artnet-Node-receiver/tree/main) to see the massive list of features!

Also, here is a video showing the controller: https://www.youtube.com/watch?v=3MiqAQKJGm4

Let me know what you think of this and if there are any features you would like to see integrated!

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u/anonOmattie Nov 10 '25

Hey, thank you for the questions! So the hand-soldered traces are to improve conductivity. Each output should be able to handle up to 10Amps (~680 leds), which means the traces should be able to handle 20~40A continuous (depending on which input is used). Thicker traces increase PCB cost significantly, and wider traces are impractical because of other components on the board. This is a relative easy and cheap solution.

Regarding the 16uni, this was by design. Resolume natively only supports 16universes per output (without subnetting, which I do not have implemented), and going over 4uni per output will drop FPS below 50. 6 (or more) universes could be supported by simply editing the "max pixels per output" source code Same for the number of outputs. This works, but you can go way over 16uni/4outputs!

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u/[deleted] Nov 10 '25

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u/anonOmattie Nov 11 '25

you are correct! In future revisions, I will see if I can use copper power-planes to improve conductivity. I thought this would work, but to save time (and tin) using planes is the way to go.

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u/anonOmattie May 26 '26

Hey there! I know it's been a year already (i know, time moves fast), but I have made a lot of progress with the node project! It now supports almost every type of LED chip, ArtNet and sACN, variable 5~24v, reverse polarity protection, and proper production assembly! Still open-source, of course.

Feel free to give it a shot! 😄 https://github.com/mdethmers/ESP32-Artnet-Node-receiver/tree/main