15w laser upgrade questions

Thank you Stephen for trying to help me anyway. I think that’s great.
Maybe you can help me with another thing.
I have had a touch plate for z-Probe for 2 years.
However, I use the old version for x-carve with Arduino and gshield.
When looking for a solution to connect the touch plate, I read several posts here in the forum.
However, it is difficult for me despite google translator. (English in German) to find the connection options.
I know I have to use pin A5 on the Arduino, GRBL higher than v 0.9.
And there I found this post from you. Probe test on Arduino - #7 by StephenCook
Since you always try to help me, I thought I would just ask you about this.
Even if the post is a bit older.
Sorry for my audacity. :Augen: :Umarmungen:
I would like to use the touch panel after years.
I would be happy if you or maybe someone else could help.
I would solder pin A5 on the Arduino and lead it to the outside. Then I would make a single-pole connector on the cable from the Arduino and the associated mating connector on the cable from the touch plate. (Quasi mom and dad)
So that I can plug my touch plate on and off.
And the clamp then comes to the router. (Right?)

I am mainly concerned with whether I have to pay attention to anything after connecting to the Arduino.
I am not a great programmer. Sorry.

Thank you in advance for your help.

Greetings Andre ’