help with com port commands for credit card reader by matthewlarner

I need help communicating with a CRT Card Reader model CRT-310. Documentation attached. I have software that connects to the com port and sends commands. I just need help on what commands to send. (Budget: $30-$250 AUD, Jobs: Anything Goes, Software Architecture, Software Testing)


Leave a Reply

Your email address will not be published. Required fields are marked *