------------------------------- NET Thermometer v0.98 by LancOS ------------------------------- This is a simple UDP client/server program to provide a powerful remote thermometer. You need to run the server on PC connected to a TCP/IP network (i.e. Internet) with the thermometer attached to a COM port. The client can be any host with TCP/IP capability. It's possible to run the server on Linux and the client on Windows and viceversa. At the moment the client is available only with a command line interface, but future versions will add a powerful GUI interface and data logging capability. --- Windows --- To try the program open a MS-DOS shell window and run the server specifying the COM port: thermosrv -com 2 (to use COM2 alias /dev/ttyS1) Then open another MS-DOS shell window and run the client to get the temperature nettherm -addr localhost ------------- --- Linux --- To try the program run the server specifiyng the COM port: thermosrv -com 2 & (to use COM2 alias /dev/ttyS1) Then you can run the client to get the temperature nettherm -addr localhost ------------ Replace the localhost with the address or hostname of the server (i.e. 192.168.1.1) Use the -help flag to obtain the description for all parameters. ----------------------- HOW TO GET THE SOFTWARE ----------------------- You will find the last version of WEBThermometer/NetThermometer at: http://www.LancOS.com The program is copyrighted by Claudio Lanconelli and is distributed under the GPL license (read the COPYING file). Look at the source code, it's an example of UDP client/server programming that works both for Linux and Windows. ----------------------- HOW TO GET THE HARDWARE ----------------------- You can build it yourself because it's very simple (look at the schematic file schematic.png), but if you prefer the hardware ready to use try to send me an e-mail at lancos@libero.it Alternatively the SI-Prog multipurpose programmer is able to work with WEB Thermometer. If you are interested look at http://www.LancOS.com/prog.html You can attach up to 8 temperature sensors (Dallas DS1621), but probably with all sensors you need an external power supply (+5V). --------------- COMMON PROBLEMS --------------- The result is "Err-11". Check that the hardware is connected, the proper COM port selected, and a good cable with all pins connected is used. The result is "Err-13". The temperature sensor is not responding. Solution: connect the DS1621 sensor and select the proper address (1-8). The result is always "Err-14". The therm.cgi process need to access the /dev/ttyS? device. On RedHat Linux distributions the /dev/ttyS? has grant rw access only to some users. Solution: if you use Apache add the wwwrun or nobody user (look at the httpd.conf file to know the user used by Apache) to the uucp group (file /etc/groups) Alternatively change the rights: chmod 666 /dev/ttyS? chmod 777 /var/lock ---------- THE AUTHOR ---------- You can contact Claudio Lanconelli at lancos@libero.it or look at http://www.LancOS.com I will appreciate any suggestions, so feel free to send me a mail.
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