Arduino Controlled Table Saw Box Joint Jig

Some weeks ago I equipped my workshop with a very good table saw (from the Austrian manufacturer Felder) and since I discovered this great website and in particular this jig, I just had to build my own. Due to my experience with stepper motors, I decided to use one of them grabbed from a scanner in combination with an easyDriver and an Arduino (an old mini I had left). I tried to keep the design as simple as possible without making use of some special hardware but the precision of the whole thing is quite good: about 0.03 mm.

I put the Arduino code here and the schematics for the board I built is here.