I did had some trouble with the long pin headers when trying to desolder the Arduino again to change the resonator. The resonator is between the two PCBs in this setup. I do not think I will get this repaired again. Mostly out of frustration about this this I was thinking about a single PCB solution. I ended up with this:

Because this will be to much for this project (Which will be most about small 1-2 log long rebuilts), I did make a own project for this now: #SERVOcontrol.

I did also begin to write some firmware. Eight Servos are running. More about the firmware soon in the new project.