| What
is Web Thermometer? |
| |
| WebThermometer + NetThermometer are a couple of utilities to
measure the temperature remotely on the browser via HTTP (the
former) or TCP/IP (the latter). |
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| What
is the goal of this project? |
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|
If everyone attach the web thermometer to his computer connected
to internet we will build a net of thermometers inside the internet,
a Worl Wide Web Thermometers!
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| What
are the WebThermometer requirements? |
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|
WebThermometer requires on the server side:
- a PC with Windows 9x/ME/NT/2K or Linux installed
- a simple hardware connected
to the COM port
- a http server (like "Microsoft Personal Web Server"
or "Apache") running on the PC
- the following files in the cgi-bin directory: cgitherm.exe
(Windows) or therm.cgi (Linux) and sekeleton.html. The skeleton.html
file is the HTML template for the results page (optional).
On the client side it requires only a web browser like
Netscape Navigator, Internet Explorer, Opera, Konqueror, etc.
|
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| What
are the NetThermometer requirements? |
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|
NetThermometer requires on the server side:
- a PC with Windows 9x/ME/NT/2K or Linux installed
- a simple hardware connected
to the COM port
- a TCP/IP network
NetThermometer requires on the client side:
- a PC with Windows 9x/ME/NT/2K or Linux installed
- a TCP/IP network
It's possible to run the server on Linux and the client on Windows
and viceversa.
|
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| Where
can I get the software? |
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|
You will find the last version of WEBThermometer/NetThermometer
here
The software is copyrighted by Claudio Lanconelli (alias LancOS)
and is
distributed under the GPL license. You should read the COPYING
file before to download.
If you want to add the WEB Thermomenter to your WEB pages,
you must add a link to http://www.LancOS.com to the result page
(the page that shows the temperature). I suggest to start with
the default skeleton.html.
|
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| Where
can I get the hardware? |
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|
You can build it yourself because it's very simple (look at
the schematic file schematic.png),
however I'm going to build a PCB for the thermometer, and if
you are interested you can send me an e-mail.
Alternatively the SI Prog multipurpose
programmer is able to work with WEB Thermometer.
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How many sensors can I connect to WebThermometer? |
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| You can attach up to 8 temperature sensors (Dallas DS1621),
but probably with all sensors you need an external power supply
(+5V). |
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Can I change the html result page? |
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You can create your own result page in HTML, some tips:
- The page should have the tag 'RESULTS' in place of
the result string
- The page should have the REFRESH meta tag with the
'RELOAD_TIME' tag in place of the number of seconds
- If you like WebTherm add a link to my URL http://www.LancOS.com,
please
I suggest to start editing the default skeleton.html file.
Note that skeleton.html file must be in the same directory of
cgitherm.exe file.
If no skeleton.html is found, the default embedded template
will be used instead.
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|
What does it mean "Err-11" response? |
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| Check that the hardware is connected and the correct COM port
is selected on the server. Check also the serial cable, it should
be a modem cable with all the pins connected. |
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What does it mean "Err-13" response? |
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Ther temperature sensor is not responding.
Solution: connect the DS1621 sensor and select the proper address
(1-8).
Note that if I have only one sensor at address 1 and I select
the addresses 1-3 (sensor 1 + sensor 2 + sensor 3) the result
will be
27ºC Er-13 Er-13
if the current temperature is 27ºC. |
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What does it mean "Err-14" response? |
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The program can't open the COM port you selected.
Usually the reason is another program are using the COM port,
so change the COM port.
Under Linux check that the http process has rights to read/write
the selected COM port (/dev/ttyS?) and the /var/lock directory.
Try the cgi-test script before to install therm.cgi (both
are located in the cgitherm directory). |
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What does it mean "Err-20" response? |
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| A timing error. Try to install the last version of webthermometer,
if the problem persists send me an e-mail. |
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Software Download |
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Read the Copying.txt
file before to download the software, please. If you click on
the links above it means you agree with the terms of the license.
Version 0.98 fixes timing problems occurred on some PC
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