Wiring BIQU microprobe to Duet RotoToolBoard

[jay_s_uk]

@Timothee-Leblond the microprobe isn't a servo so you can't use M280.
You need to use M42. Have you looked at the BTT docs for it?

[Timothee Leblond]

@jay_s_uk Thanks for your answer.

Yes indeed, I've been following the doc on Duet's website as well as the teamgloomy tutorial on how to connect a BTT microprobe.

But it's not working as it should.

[jay_s_uk]

@Timothee-Leblond you have the wrong commands so it won't work.
Can you show me on the teamgloomy wiki on a page for the microprobe it says to use M280?

[jay_s_uk]

@Timothee-Leblond here's the BTT manual for the microprobe v2 https://github.com/bigtreetech/MicroProbe/blob/master/MicroProbe V2 User Manual_20240330.pdf

[Timothee Leblond]

@jay_s_uk

You're right, I was wrong.

I updated everything with the right commands but It is still not working.

-config.g:

M950 P0 C"121.io0.out" ; Set servo output on Rototoolboard
M558 P9 H6 F250:30 T8000 C"^!121.io0 .in" ; Set probe input to IO_0 on Rototoolboard
G31 P500 X0 Y0 Z0 ; set Z probe trigger value, offset and trigger height

-deployprobe.g file:

M42 P0 S1 ; Deploy probe
G4 P500 ; Pause for 500ms to ensure deployment

-retractprobe.g file:

M42 P0 S0 ; Retract probe
G4 P500 ; Pause for 500ms

[Timothee Leblond]

@jay_s_uk

I also created two macros using M42 P0 S1/S0 but there also not working.

[jay_s_uk]

@Timothee-Leblond can you show your wiring?

[Timothee Leblond]

@jay_s_uk

Sure, here it is:

[jay_s_uk]

@Timothee-Leblond that wiring looks a little rough. it may well be that a couple of the pins aren't making a full connection.
The crimps should be fully inside the housing and locked in place

[Timothee Leblond]

@Timothee-Leblond

The microprobe is connected to IO_0 as follows:

-White cable to the pin IO_0_out of Roto
-Both black cables to pin GND
-Yellow to pin IO_0
-Red cable to pin 5V

What triggers me is that the probe is deploying and retracting when I start the motherboard.

[Timothee Leblond]

@jay_s_uk

I agree with you but It's working when the motherboard starts so I'm assuming it should be ok?
I will rewire it for sure to eliminate this doubt.

[jay_s_uk]

@Timothee-Leblond all that means is its getting power. the mainboard doesn't send any signals to it at start

[Timothee Leblond]

@jay_s_uk

Got it. The status led is also blinking red. Do you think my problem could come from this?
If yes, how should I solve this?

Thanks for your help,

[jay_s_uk]

@Timothee-Leblond i would recheck all your wiring first and make sure thats sound and fully connected properly first

[Timothee Leblond]

@jay_s_uk I double checked and rewired everything but I feel the rototoolboard is not communicating with the mainboard. The light is still blinking red.

Prior the installation of the Raspberry Pi, it was working as far as I remember.

[Timothee Leblond]

@Timothee-Leblond

From what I read here, the status LED flashing red once per second at the second is normal and does not indicate a problem.

But I still can't send any command to the Roto Tool Board...

[droftarts]

@Timothee-Leblond Does the Roto board show up in DWC > Settings > Machine specific > Electronics? What firmware version does it report there, and CAN bus address? Then post your full config.g.

Ian

[Timothee Leblond]

@jay_s_uk

Sending a M122 B121 command works. It shows a communication between both Roto and Duet3.

[Timothee Leblond]

@droftarts Here is what I have:

[droftarts]

@Timothee-Leblond What commands are you trying to send to the Roto board? Is it just the probe commands, or does the stepper motor you connected not work? And please post your full config.g.

Ian