The monorover is a simple and effective tool to speed up everyday travel.  It is easy to learn, and uses pressure plates to tell the position of the passenger. The person just has to lean forwards or backwards to go in their desired direction.  Surprisingly, I could not find any detailed schematics or information about the electronics online, but I can make assumptions about the technology they used.  Since it is self balancing, they would have to use some gyroscopic sensor to keep it level.  I would also guess that there is some sort of rotational sensor in the middle of the board, where the two sides meet, to deal with turning.  For our version of it, we can just use a two by four for the base, and the small motors that were used on the electric skateboard would be the power.  I think the easiest way to make it monerver is to have buttons on the inner walls (next to the feet), so the feet could press against them when the person wants to move.  The person would hold down both to go forward, hold down one side to turn in a certain direction, and tap the buttons once to go backwards.  I think that it would be a challenge to make it self balancing, but we could do it using gyroscopic sensors and stabilisers.