I've been searching around trying to find a solution for my problem. I currently have a Krell HTS processor that has a failing remote. I believe it is the IR sensor on the processor that is faulty. I would like to know if there is a low-cost simple controller that I can program to send RS-232 to this single unit only. I've looked at Crestron stuff and it's generally very expensive and designed to control many pieces of equipment.