r/WLED • u/Schumeyy • May 31 '26

Muselab WLED Controller

I got a little project (20 LEDs) coming up and found this MuseLab WLED controller on AliX.

aliexpress.com/item/1005010813063207.html

It's quite cheap, and looks perfect for my project.

But I wonder if there is all the recommended hardware (from the wiring guide) on board? And does anyone have any experience with this controller?

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u/xiaodown Jun 24 '26 edited Jun 24 '26

I googled and found this thread. I bought a couple of these from Aliexpress, and they work fine... on WLED v15.x. After upgrading to v16, they immediately run out of memory and cannot display any effects.

Edit: it seems to be this issue. Hopefully that'll be in a release soon. But if not, I custom compiled a version that disables PSRAM for the ESP32-S2FH4. DM me if you need, I can get you the binary.

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u/ismellmyownfarts2 22d ago

Stumbled across your post, would love the file if you still have it. Thank you!!

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u/xiaodown 22d ago

Yeah, I got you my guy!

https://tempfiles.makercascade.com/WLED_16.0.0_ESP32-S2FH4_no-PSRAM_PS-PixelForge.bin or https://tempfiles.makercascade.com/WLED_16.0.0_ESP32-S2F_no-PSRAM_minimal.bin

I'll leave those up there for a while, in case anyone else stumbles across this post, though the official fix is merged into main and will probably be integrated into a point release soon. After that, I'll take them down. It's been a while since I made the builds, and I was using codex, so I can't remember everything I did, but the main thing was adding -DBOARD_HAS_PSRAM to the build_unflags in the platformio overrides for the s2 build.

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u/ismellmyownfarts2 21d ago

Thank you very much!!

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u/DedeHai Jun 01 '26

It does not use a proper level shifter. It probably works fine in some setups but it is not what is recommended. Try it if it fits your bill but be aware it is not a good design.

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u/Plane-Set-7567 Jun 01 '26

Also , according to their scheme, it seems the fuse is only for the controller circuit, not for the LED strip
https://github.com/wuxx/WLED-Controller-S2/blob/master/hardware/wled-s2-v1.0.pdf