Sending the <Esc> function through a serial port

Hi,

My name is Gunnar and I am a M.Sc. student of engineering. I am working on controlling a Fraction Collector through my serial port. It works fine, all except this one function called pulse. In the guide for the device it says this about this function: "Pulsing will continue until it is aborted with an esc character."

This works fine when I use hyperterminal (windows program) to communicate with the serial port, but how to send Esc through matlab.

I have tried sending '0x1B', 'ESC', 'AT s2', '###' and many more. All have been formatted as string.

Is there perhaps any way of having fprintf recognize that my string is ascii code ?

However I am open to any suggestions.

Thanks in advance.

Answer 1

[Walter Roberson]

fwrite(s,char(27))

[Gunnar S. Hilmarsson]

Awesome, works like a charm.

I had problems using fwrite to the serial port, but i just used fprintf with the char(27) function and it did the trick.

Thanks a bunch Walter :)