Zeroing Z axis

I have ordered this tool for zeroing Z axis www.aliexpress.com/item/CNC-Router-MACH3...ment/1615336689.html

I have used stepconf wizard to setup my cnc 6040 router and reserved one input for height tool
how can i setup in linuxcnc this tool to make automatically this procedure of zeroing Z axis ?
thank you.

Set up one of your halui.mdi-command-NN entries in your ini file to the appropriate G10 L20 Pn Z0 entry

www.linuxcnc.org/docs/devel/html/gcode/g...et_coordinate_system

Then net the output from the sensor to the halui.mdi-command-NN pin and Z will be zeroed when it goes true

That is the basics of it, lots of refinements possible

regards

Iam totally new so i don't understand these..
Exists a tutorial how to do it ?
Here is my config

6040-parallel.hal has the line (this is from stepconf wizard i reserved pin 11 of parallel port as probe in)
thank you.

Put the line
MDI_COMMAND = G10 L20 P1 Z0 in your ini file as first entry

www.linuxcnc.org/docs/devel/html/config/....html#_halui_section

In your hal file
This will reset Z to 0 in coordinate system 1 (G54) every time the probe triggers.

That might not be too convenient, so you could for instance arrange it that you need a button press to confirm, via an and component, before it zeros.

That is what I meant by a lot of refinements are possible

regards

Might want to look here...
softsolder.com/2010/04/14/emc2-ugliest-t...-probe-station-ever/

Rick G