# SV06 ACE Additional LEDs, Fans

**URL:** https://forum.sovol3d.com/t/sv06-ace-additional-leds-fans/7430
**Category:** Sovol SV06 ACE
**Created:** [April 6, 2025, 11:00pm UTC](https://forum.sovol3d.com/t/sv06-ace-additional-leds-fans/7430 "2025-04-06T23:00:35Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Felixwa](https://avatars.discourse-cdn.com/v4/letter/f/cab0a1/32.png) [@Felixwa](https://forum.sovol3d.com/u/Felixwa)
#### Post date: [April 6, 2025, 11:00pm UTC](https://forum.sovol3d.com/t/sv06-ace-additional-leds-fans/7430/1 "2025-04-06T23:00:35Z")

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Hello there,  
I built a case for my SV06 Ace and want to control some additional LEDs and Fans from Mainsail, What pins should I use? Couldn’t find any on the data from sovol. Thanks

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### Author: ![bcat](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/bcat/32/2863_2.png) [@bcat](https://forum.sovol3d.com/u/bcat)
#### Post date: [April 7, 2025, 1:50am UTC](https://forum.sovol3d.com/t/sv06-ace-additional-leds-fans/7430/2 "2025-04-07T01:50:40Z")

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There are indeed some spare pins available. Not a lot, but at least for some LEDs (and IIRC there’s an open fan port on the extruder board, but don’t quote me on that). [This Reddit post](https://old.reddit.com/r/Sovol/comments/1ikadp8/sovol_sv06_ace_neopixel_info_for_anyone_interested/) has some details.

There are also some technical details of the mainboard and extruder board [on Sovol’s GitHub](https://github.com/Sovol3d/SV06-ACE/tree/main/Motherboard).