Man I dont know the pin layout anymore, but just connect the send and receive pins and you can write data across it. you can figure that out by some google searching.
The thing is in linux you need to initalize the port, i never figured that out, but minicom will do it for you. If you want my perl script, email me i'll send it to you The script can be made sensitive enough to know within a .01seconds if the button is down Adam Melancon wrote: >Is there a way that I could possibly have the script monitor >/proc/tty/driver/serial >I guess I should be asking if there is a way to connect two pins >through the button hooked up to the serial port that would change the >values in /proc/tty/driver/serial so that I could monitor that file >and if a change occured, it would fire off a script to start >recording, and then when the button is released it would change >/proc/tty/driver/serial back to normal and stop recording? > >This is the closest I've come so far to finding any answers via the >almighty google. >------------------- >#/bin/bash >while true >do > read LINE < /dev/tty0S > echo $LINE >done >------------------- >http://www.easysw.com/~mike/serial/index.html >------------------- >http://www.linuxselfhelp.com/HOWTO/Serial-HOWTO.html >------------------- > >On 7/6/05, -ray <[EMAIL PROTECTED]> wrote: > > >>It can definitely be done. We are doing something similar right now to >>log when an operator goes through Brad's office to leave the computer room >>(they're not supposed to). Using a simple foil switch nailed to the door >>frame. >> >>I originally wrote a C program to do it about 7 years ago. The basic >>premise is open the serial port, write 2 bytes, then read them back. If >>the read fails, the switch is open. If the read succeeds, the switch is >>closed. Wait a few ms, then do it again. >> >>Jason Fried (he's on the list) has all the info on our current setup...he >>may even remember which pins trigger the switch. If he's not too busy >>slacking, he can probably post more info. >> >>ray >> >> >>On Wed, 6 Jul 2005, Adam Melancon wrote: >> >> >> >>>I have a small project that I'm working on in my spare time and it >>>involves a big red button (picture the ones from arcade game cabinets) >>>attached to the serial port. >>>Now keep in mind, I'm no programmer, but I'm pretty good at bash scripts. >>>Is there a simple way that I can have a bash script monitor the serial >>>port for this button to be pressed and then trigger a function within >>>the script. >>> >>>Basically what this will be is a linux box with a webcam and a mic and >>>this button, and when the button is pressed, it will have ffmpeg >>>capture 30 seconds of audio and video to an avi file and then wait for >>>another press of the button. >>>It would be ideal if somehow I could also have a red led go on during >>>capture too. >>> >>>There is no real use that I have for this at the moment, it's just >>>something I'm doing to see if it can be done. >>> >>>Does anyone have a simple solution to my serial port quandry? >>> >>>Thanks! >>> >>> >>> >>> >>> >>-- >>=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= >>Ray DeJean http://www.r-a-y.org >>Systems Engineer Southeastern Louisiana University >>IBM Certified Specialist AIX Administration, AIX Support >>=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= >> >> >>_______________________________________________ >>General mailing list >>[email protected] >>http://brlug.net/mailman/listinfo/general_brlug.net >> >> >> > > > >
