BLTouch trigger issue on RRF 2

[Parabolic]

[64bit]

Open bed.g and delete/comment the M307 line for the heater channel you are using to drive the BLTouch servo

I just got mine working last night.

[Phaedrux]

@Parabolic said in BLTouch trigger issue on RRF 2:

The M280 isnt working - returns a invalid servo index 0

What exactly are you sending for your M280?

Does M401 and M402 work to deploy and retract?

[Parabolic]

@64bit Its already been done. Thanks!

[Parabolic]

@Phaedrux No my 401 & 2 does not.
Im not sure what you are asking about the 280

[Veti]

if m402 and m401 does not work, there is a problem with your wiring.

the extension wire of the bltouch tend to give poor connections. connect the bltouch directly and test again.

[Phaedrux]

Can you send M98 P"config.g" in the console and post the response?

When you say M280 isn't working and giving you that servo index 0 message what exactly did you send for your full M280 command?

[Parabolic]

@Phaedrux said in BLTouch trigger issue on RRF 2:

M98 P"config.g"

[Phaedrux]

Can you post a photo of how you have the BLTouch wired?

Your config.g is using heater 3 pin on the expansion port. Are you connected to the right pin there?

If you send M401 and M402 they don't work?
If you send M280 P3 S10 I1 does that work?

[Parabolic]

@Phaedrux said in BLTouch trigger issue on RRF 2:

M280 P3 S10 I1

Yes, 401 and 2 retract and extend the pin.
Yes I'm connected to the right pin on the expansion header - just like in the setup pics.

[AStraws1]

I am having the same issue! my config.g looks the same as above and M401 and M402 both work. I did notice that the trigger type listed in the Z-Probe section of the Machine Properties tab says Unknown (9).

[Phaedrux]

@Parabolic said in BLTouch trigger issue on RRF 2:

Yes, 401 and 2 retract and extend the pin.

Ok, but before you said it didn't, so I'm a bit confused.

If it's just not triggering while doing a probe with G30, then again I say

@Phaedrux said in BLTouch trigger issue on RRF 2:

Are you super sure the white wire is good? Not triggering would indicate the white wire isn't connected.
You could experiment with this since its a BLTouch 3.1
https://www.antclabs.com/logic

[Parabolic]

@Phaedrux Sorry for the delay.

I just wanted to thank you for all your help!
It was my own bonehead mistake. I had originally used an knockoff BL and totally forgot that I had put the resistor across the signal to ground wires inside the harness.
Using my meter I finally figured out the issue with both ends unplugged.
I removed the resistor and it g28 and g29 perfectly!!
I was going out of my mind!