Hello Anselm, > I read it - again some problems: Does it just open a tcp port for you > to communicate with that single-wire interface attached? Would > probably be the best solution.
I recently bought a siteplayer (check out www.siteplayer.com ) wich is about the same as TINI. It's an embedded webserver with a serial port so it can connect to a µC and send UDP messages out it's ethernet port. I'm now guessing on a setup like this: iButton > iButton reader > µC > Siteplayer > My iButton server OR any network-attached device that can talk UDP. The process of attaching a µC to iButton stuff is also well documented. The Siteplayer would just be relaying serial messages to UDP messages. > > Let's say I wanted to use the serial port for something else. A simple LCD > > display, showing the price the client has to pay. this can be different per > > WS. How to set this up (Hardware/Software) ? > > I recommend using a parallel port, as described in > www.ocinside.de > http://www.linuxnetmag.com/de/issue5/m5lcd1.html (german) > http://www.linux-magazin.de/ausgabe/1999/08/LCD/lcd.html (german) > > or just go google'ing yourself. This would require the lcd driver module (as > mentioned in these pages) to be run on the WS, but that should not > matter for LTSP, remember the RCFILE directive for lts.conf. The same, > it should be no great problem to start a process listening on port > udp 5651 or so and dump everything it gets to the /dev/lcd device. > > Then it could be reasonable to have a server program running on one > computer dedicated as "iButton server". This program would wait for > someone to put his iButton to the reader. If it's a waiter, the > workstation screen could change to the "select drinks/food", if it's a > client, he would be presented with his debts. > > If you want it web-based, you could have a html refreshing every two > seconds or so, and if there was an iButton detected, it could get over > to a page where all the interesting stuff can happen. Then it would > not matter wether it's linux or windows based clients, First of all I would like to start developing in windows since I'm familiar with that. That's why I like it web-based. One of the things I dislike most is a flickering HTML-page. I found out that I can talk to sockets with PHP (server side scripting). I've allready seen a tutorial on that. What I'ld like is some sort of 'server push' to change the content on a web-page only when info arrives thru a socket. (don't know if that can be done with PHP _YET_ ) Thanks, Michael Van Wesenbeeck, [EMAIL PROTECTED] ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.openprojects.net
