SpheroGraph

Design presented to the sphero #make5000 contest.
The SpheroGraph allows the sphero to draw over a surface with a pen or a marker. The quality of the draw relies mostly on the ability to drive the sphero, ¡quite a challenge!. But the final idea would be fulfilled with an app that allows to scale the paper size, find the initial position of the sphero on it, and then make the sphero follow a fixed trajectory, maybe some words in cursive letters to make a big sign (it could be made with a finge