KE7GKP:
So you want forward/stop/reverse control based on inputs from several transducers. Yes, that would require a micro-controller and an H-bridge, (or a transistor and a relay). But a simple H-bridge can be constructed from four jelly-bean transistors and is quite a simple circuit.
Would you have a link for me to make the circuit?
Or, would I just use the Arduino and the H-bridge ( http://www.ti.com/lit/ds/symlink/l293d.pdf )??
I am new to this, so no0b based information would be easier to understand.