Date: Tue, 7 Apr 2009 11:41:54 +0200 From: Valentin Bud <valentin.bud@gmail.com> To: freebsd-questions <freebsd-questions@freebsd.org> Subject: C programming question Message-ID: <139b44430904070241j5227d178jd75f6a93057a150a@mail.gmail.com>
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Hello community, I have built with a micro controller a system of power plugs that can be controlled through the serial port. I have 2 plugs that i can start/stop and check the status of them. This is accomplished by sending different letters (eg. A/W) to start/stop one of the plugs and another set of letter for the other plug and one letter to check the status. Taking into account the fact that my C skills are almost 0 how complicated would be to write a program so I can control that micro controller through the serial port. Or is there some kind of program that can read/write from/to the serial port from the command line. I don't want an interactive program like minicom, just a program that connects and send a command (a letter in my case) to the serial port. Why not minicom (or any other program like it)? My goal is to be able to start/stop the plugs using a web interface. I have tried using minicom and background it but when i log out minicom closes. If minicom is started i can send commands to ttyd0 with echo, but i can't read anything from serial. Now back to my original question, how hard/complicated will it be to write a C program to control the micro controller through the serial port. Of course on FreeBSD :). thanks, v -- network warrior since 2005
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