Matt Willis answered it! Use fwrite instead of fprint. Done!

End of drill. Bob, WB4APR

-----Original Message----- From: Matthew Willis [mailto:mattwillis@gmail.com] Sent: Thursday, August 02, 2012 10:28 AM To: bruninga@usna.edu Subject: Re: [aprssig] MATLAB serial comms?

I assume you've tried fwrite as documented here? http://www.mathworks.com/help/techdoc/matlab_external/f62852.html

On Thu, Aug 2, 2012 at 10:18 AM, Bob Bruninga bruninga@usna.edu wrote:

Does anyone know how to send SERIAL Characters from MATLAB?

The catch is, we are trying to send BYTES above 127 (Extended ASCII) and the usual %c formatter while using CHAR(133) for example, does not actually send the byte "133".

Relevance is: Students working on an APRS satellite project. I can do it EASILY from all kinds of other devices, but the professor insists on using MATLAB syntax.

Thanks

Bob, WB4APR

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