Hi everyone, i'm building a model elevator for an engineering project at school. I want to build it as three levels (ground, middle and top) but i am having difficulty getting it to work on paper. I just can't see how you can make the motor distinguish upwards movement from downwards movement in order to reach and stop at the middle floor. I just can't think of a way to get it to work, it doesnt help that i want to have only three buttons (1,2 and 3) to tell it which floor to go to. If anyone has any ideas or advice..i'd appreciate it.