LEGO WeDo 2.0 Line Follower HD

This construction is based on Yoshihito Isogawa LEGO WeDo Wall Tracer: https://www.youtube.com/watch?v=gdC3kq4LTGM You can find the program here: http://labusch.de/wp/lego-wedo-2-0-line-follower/ Building instructions may follow (if I have the time for it...)