Using BL Touch with my Raspberry Pi

xboxhooah

I started a new project with my 3D Printer. I already have made some hardware improvements to my Wanhao Duplicator i3 Plus.
This time I want to solve the latest flat print bed problems by using the well-known BL Touch.
I came across a manual on how to connect the BL Touch to your RPI. I was also looking for that, because I prefer not to solder on the motherboard of my 3D Printer.
Tutorial 1: https://www.youtube.com/watch?v=yAfalR7-Tvw
Tutorial 2: https://www.youtube.com/watch?v=yAfalR7-Tvw
Video: https://www.youtube.com/watch?v=yAfalR7-Tvw

I've already come a long way in the software installation to use the BL Touch.
I installed Octoprint and Klipper on my Raspberry Pi (connected to USB), and I also flashed the printer in accordance to the manual.
Now I'm stuck on getting the BL Touch active itself. There is no movement and no light in the BL Touch comes on.

The problem, I suspect, is that the RPI is not supplying enough power to the BL Touch.
Also, when the BL Touch is plugged in, the RPI won't even boot. I get a steady red led and the green one doesn't start flashing. I think this indicates a lack of power.
When I connect all cables, except for the 3.3V or 5V, the RPI boots normally.

I've already tried several things

Wiring connected, according to the manual
Connected in mirror (I came across a mirrored wiring on the Internet)
Only the 3.3V and GRND connected (no LED lights up in the BL TOUCH)
Only the 5V and GRND connected (no LED lights up in the BL TOUCH)
Start RPI first and then connect the 3.3V or 5V (then the RPI will not get enough power)
5V and GRND connected via another USB Powersupply (external adapter) and the GPIO pins connected to the RPI (this also has no effect)

Hardware
Wanhao Duplicator i3 Plus
Raspberry Pi 3B
BLTouch from Creality.

Software
Clipper
Octo print
Octo clipper

Who has a solution for this?
I would like to use the BL Touch in combination with my RPI (octoprint)...

jay_s_uk

@xboxhooah I'm sorry but we only support duet boards here and even then only running reprapfirmware. Best to find support on the klipper discord or reddit

droftarts

@xboxhooah said in Using BL Touch with my Raspberry Pi:

BLTouch from Creality

Check the wiring of the BLTouch. The Creality version doesn't use the standard pinout. Most likely you are shorting out the Raspberry Pi, and that's why it isn't booting. See our documentation here on the possible colours of the wiring https://docs.duet3d.com/User_manual/Connecting_hardware/Z_probe_connecting#bltouch
This may help you get the wiring right. Otherwise, as @jay_s_uk says, we only support boards running RepRapFirmware here.

Ian

xboxhooah

@droftarts that helped. It was the wiring, thanks for the link. And sorry for the late reply.