The very first prototype circuit board has been soldered together, and the first trials have worked perfectly! 

However, there are a lot of features left to code for the "firmware". But as of now it can create a wifi access point with a setup page, and then store your wifi credentials and run a web server on your local wifi. Also it can turn two stepper motors without any hickups, but I couldnt try the limit switches today since i was missing some resistors. 

All in all, everything is going according to schedule...