# SV06 GPIO and power for Pi4 Klipper

**URL:** <https://forum.sovol3d.com/t/sv06-gpio-and-power-for-pi4-klipper/1448>\
**Category:** Sovol SV06 Fully Open Source 3D Printer\
**Created:** [January 27, 2023, 2:28pm UTC](https://forum.sovol3d.com/t/sv06-gpio-and-power-for-pi4-klipper/1448 "2023-01-27T14:28:46Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![tbonge](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/tbonge/32/509_2.png) [@tbonge](https://forum.sovol3d.com/u/tbonge)\
**Post date:** [January 27, 2023, 2:28pm UTC](https://forum.sovol3d.com/t/sv06-gpio-and-power-for-pi4-klipper/1448/1 "2023-01-27T14:28:46Z")

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Does the mainboard on the SV06 have GPIO and power pins that can power a Pi4 running Klipper?

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**Author:** ![Jenss](https://avatars.discourse-cdn.com/v4/letter/j/59ef9b/32.png) [@Jenss](https://forum.sovol3d.com/u/Jenss)\
**Post date:** [January 30, 2023, 3:13pm UTC](https://forum.sovol3d.com/t/sv06-gpio-and-power-for-pi4-klipper/1448/2 "2023-01-30T15:13:17Z")

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three endstop switches are still free (Inputs only)  
the line for a runout sensor is routed to the print head. 3 pin mini JST 1.27mm  
Maybe 2 IOs in the line to the display are unused.

The Z-sensor does not use a servo signal like the BL Touch, only 5v, GND and z-signal  
But the 5-pin cable is routed to the head. (2x GND, 5V, Z signal, unused servo)  
(I can’t say the pin order)

For the PI4 I use an external power supply.  
But a stepdown 24V → 5V is also possible

I use Marlin and Octoprint

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**Author:** ![tbonge](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/tbonge/32/509_2.png) [@tbonge](https://forum.sovol3d.com/u/tbonge)\
**Post date:** [January 30, 2023, 6:57pm UTC](https://forum.sovol3d.com/t/sv06-gpio-and-power-for-pi4-klipper/1448/3 "2023-01-30T18:57:42Z")

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My idea was to get it working with a Pi4 and then try to find a Pi Zero 2 and mount it inside the case, but based on this info it will be better to stick to USB. Thank you.

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**Author:** ![Jenss](https://avatars.discourse-cdn.com/v4/letter/j/59ef9b/32.png) [@Jenss](https://forum.sovol3d.com/u/Jenss)\
**Post date:** [January 30, 2023, 8:58pm UTC](https://forum.sovol3d.com/t/sv06-gpio-and-power-for-pi4-klipper/1448/4 "2023-01-30T20:58:44Z")

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There is no additional serial port. Unless you unsolder the serial IC and hack in a 3 volt serial port.  
115200 baud works via USB. Per firmware I have 250000 baud.

Take a Pi Zerro\_2W, 3A+, 3B, 3B+ or 4B with Quadcore  
Or CM3, CM4 with adapter  
The Raspberry 3A+ costs only €55

Raspi Zerro 1, Zerro 1W and Raspi 1, 2 are to slow

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**Author:** ![Jenss](https://avatars.discourse-cdn.com/v4/letter/j/59ef9b/32.png) [@Jenss](https://forum.sovol3d.com/u/Jenss)\
**Post date:** [January 30, 2023, 9:04pm UTC](https://forum.sovol3d.com/t/sv06-gpio-and-power-for-pi4-klipper/1448/5 "2023-01-30T21:04:27Z")

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The housing for the mainboard is very tight. Better a separate housing for the PI because of WLAN

I have no experience with clippers  
However, Octoprint runs on Buster Linux. At bullseye only with USB camera