Hello: My name is George and I am trying to control a pair of BENQ SH-963 projectors using the RS-232 serial ports on the projectors. All I need to be able to do is to turn the projectors on and off simultaneously, and possibly to blank the screen on both projectors simultaneously. I can't use the IR remotes provided with the projectors as they are too far away from where they need to be controlled from. The projectors will be about 75' (as the cable flies) from the control booth, where we do have a laptop PC.
I believe this can be done, I just don't know how or even where to start looking.
I will appreciate any help anyone can give me.
I believe this can be done, I just don't know how or even where to start looking.
I will appreciate any help anyone can give me.