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Originally Posted by 6600gt
Can't use serial port 2 since the camera is using it.
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You could connect the CMUcam to the program port since it already uses RS232, and then connect your other pic to the TTL port directly. If you're concerned about runnning a whole DB9 serial cable to the camera you could just buy a DB9 connector and replace one end of a pwm cable with the DB9. The CMUcam already has a PWM-style 3-pin connector for RS232 Tx, Rx, and ground (which is all you need).