Hello. How are you?
I'm a plain programmer you can see everywhere. But I'm sure I can fit your request.
I can get your ideas. I have expriences to develop java programs to communicate and controls external devices using USB port, RS233, and COM port.
And now, I am developing programs for Windows, Web, Networking mainly using C#.
So, I'm sure i can satisfy your requirements.
The only problem is that the type of your coin acceptor and the protol it's using.
And it is needed for me to experiment with your coin acceptor for verifying my works. Or sorry, but you could test on your own.
Please feel free for me.
Best regards.