# Main board pinoits and printer config
**URL:** https://forum.sovol3d.com/t/main-board-pinoits-and-printer-config/6842
**Category:** Sovol SV06 ACE
**Created:** [February 7, 2025, 4:52am UTC](https://forum.sovol3d.com/t/main-board-pinoits-and-printer-config/6842 "2025-02-07T04:52:02Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Elektron07](https://forum.sovol3d.com/u/Elektron07)
#### Post date: [February 7, 2025, 4:52am UTC](https://forum.sovol3d.com/t/main-board-pinoits-and-printer-config/6842/1 "2025-02-07T04:52:02Z")
So I wired some 24 volt LEDs up to the 1224 pin on the main control board. It is always live. And I was wondering if I could control them in a macro from the main sale interface like I do on the SVO 8 I basically did the same thing with a nozzle LED. I’ve looked through macros and printer config and I don’t know how to control that pin or if you even can if anybody has looked into it let me know. Thnkx.
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### Author:  [@Oliver](https://forum.sovol3d.com/u/Oliver)
#### Post date: [February 7, 2025, 3:56pm UTC](https://forum.sovol3d.com/t/main-board-pinoits-and-printer-config/6842/2 "2025-02-07T15:56:24Z")
[Maybe this will help?](https://forum.sovol3d.com/t/is-there-a-way-to-switch-the-cameras-led-via-the-web-interface-mainsail/6260/42)
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### Author:  [@Elektron07](https://forum.sovol3d.com/u/Elektron07)
#### Post date: [February 7, 2025, 4:36pm UTC](https://forum.sovol3d.com/t/main-board-pinoits-and-printer-config/6842/3 "2025-02-07T16:36:34Z")
Read threw the. Forum already for the ace. Thank-you tho
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### Author:  [@bcat](https://forum.sovol3d.com/u/bcat)
#### Post date: [February 8, 2025, 5:08am UTC](https://forum.sovol3d.com/t/main-board-pinoits-and-printer-config/6842/4 "2025-02-08T05:08:01Z")
Someone just made a [Reddit post](https://old.reddit.com/r/Sovol/comments/1ikadp8/sovol_sv06_ace_neopixel_info_for_anyone_interested/) that seems relevant to this. Hope that helps!
I haven’t tried hooking anything up to them myself yet, but pins PB0 and PB1 are hiding on an open mainboard header under the display cable, and are evidently controllable by Klipper. (There’s also PC4 and PC5 test pads there, if you feel like soldering to those.)
