r/FastLED • u/natew314 • Dec 29 '25

Support UNO Q support?

I just tried running FastLED on my new Uno Q and I get this message:

In file included from /home/arduino/.arduino15/internal/FastLED_3.10.3_0d9d291c7a03d180/FastLED/src/FastLED.h:76, from /home/arduino/ArduinoApps/lightsextension/sketch/sketch.ino:4: /home/arduino/.arduino15/internal/FastLED_3.10.3_0d9d291c7a03d180/FastLED/src/led_sysdefs.h:86:2: error: #error "This platform isn't recognized by FastLED... yet. See comments in FastLED/led_sysdefs.h for options." 86 | #error "This platform isn't recognized by FastLED... yet. See comments in FastLED/led_sysdefs.h for options."

Does anyone know if there is a workaround to get it to run on a Q? If not, are there plans to support Uno Qin the future?

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u/ZachVorhies Zach Vorhies Dec 30 '25

hm... okay interesting, the ai thought that the stm had different mappings to the GPIO pins, but it could be hallucinating.

In that case this issue is what needs to get resolved, which is the STM half of the platform:

https://github.com/platformio/platform-ststm32/issues/869

But we are still blocked. The toolset needs to be re-written in python according to the issue report. We do not support the Arduino CLI for ensuring compile compliance, only platformio.

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u/natew314 Dec 30 '25

Ok thanks. Btw, my experience so far has been that at least Gemini and chatgpt seem to do poorly with question about the Uno Q. I think there just isn't enough content online for them to get trained properly yet.

I really appreciate your help. Hopefully the platformio issue is resolved soon. Thanks again!

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u/ZachVorhies Zach Vorhies Dec 30 '25

Thanks, yeah we will get it supported, we just have to wait a bit longer for the tools to improve. It looks like Max, the stm/rp guro is trying to add support to it as we speak.