# SKR Pro + BL Touch 3.1 (BL Touch issue...)

**URL:** <https://klipper.discourse.group/t/skr-pro-bl-touch-3-1-bl-touch-issue/3664>\
**Category:** General Discussion\
**Created:** [August 1, 2022, 8:23am UTC](https://klipper.discourse.group/t/skr-pro-bl-touch-3-1-bl-touch-issue/3664 "2022-08-01T08:23:29Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![yvautrin](https://avatars.discourse-cdn.com/v4/letter/y/d07c76/32.png) [@yvautrin](https://klipper.discourse.group/u/yvautrin)\
**Post date:** [August 1, 2022, 8:23am UTC](https://klipper.discourse.group/t/skr-pro-bl-touch-3-1-bl-touch-issue/3664/1 "2022-08-01T08:23:29Z")

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Hi All,  
Trying to configure my BL Touch 3.1 (Genuine) on my SKR Pro 1.1.  
Wiring seems ok, no errors on the pins apprently, but…  
When I start the MCU, the BL Touch pins is triggered and come back in place, BL Touch state is a steady red LED.  
When I run the “BLTOUCH\_DEBUG COMMAND=pin\_down” command, the pin goes down, then the BL Touch is flashing red…  
Trying next to send " BLTOUCH\_DEBUG COMMAND=pin\_up", nothing happens, pin stays down and BL Touch still flashing…

Here is my cfg for The probe:

```auto
[bltouch]
sensor_pin: !PA2
control_pin: PA1

```

Any ideas?

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**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\
**Post date:** [August 1, 2022, 8:34am UTC](https://klipper.discourse.group/t/skr-pro-bl-touch-3-1-bl-touch-issue/3664/2 "2022-08-01T08:34:25Z")

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When you run `BLTOUCH_DEBUG COMMAND=pin_down`, does the pin touch the printbed?

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**Author:** ![yvautrin](https://avatars.discourse-cdn.com/v4/letter/y/d07c76/32.png) [@yvautrin](https://klipper.discourse.group/u/yvautrin)\
**Post date:** [August 1, 2022, 9:17am UTC](https://klipper.discourse.group/t/skr-pro-bl-touch-3-1-bl-touch-issue/3664/3 "2022-08-01T09:17:17Z")

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yes, and it stays down… should i move the bed down so it does not touch?  
Edited: Stupid me… I moved the bed down, and now it works fine…

Again, thanks a lot @EddyMI3D ! You’re a Star!

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**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\
**Post date:** [August 1, 2022, 9:32am UTC](https://klipper.discourse.group/t/skr-pro-bl-touch-3-1-bl-touch-issue/3664/4 "2022-08-01T09:32:19Z")

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Great! Have fun with Klipper

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**Author:** ![yvautrin](https://avatars.discourse-cdn.com/v4/letter/y/d07c76/32.png) [@yvautrin](https://klipper.discourse.group/u/yvautrin)\
**Post date:** [August 1, 2022, 9:46am UTC](https://klipper.discourse.group/t/skr-pro-bl-touch-3-1-bl-touch-issue/3664/5 "2022-08-01T09:46:37Z")

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I am still stuck with Klipper screen…(see my other post…!)

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**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\
**Post date:** [May 5, 2024, 9:31pm UTC](https://klipper.discourse.group/t/skr-pro-bl-touch-3-1-bl-touch-issue/3664/6 "2024-05-05T21:31:14Z")

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