[dpeterson3]

Maybe I didn't make myself clear enough. This is a speakJet chip. It generates sounds based on a TTL serial line. I wanted to use my Apple IIe because I really don't have anything else to use. I happen to have it lying around doing nothing. It has a game port on it. The port has a pin that can be pulsed from 0 to +5 easily. I know there is a way to write a serial protocol based on this port because it can be toggled like a digital I/O pin on the FRC controller. I just am not sure where to start.

Forgot to add. I am not worried about detecting people coming in the room. That problem is easily solved. The game port allows for four button inputs. I can read the button states to tell when people walk in.