PC Thermometer V2
A method of measuring temperature using the PC Game port.
Display is via the program dialog or in the System tray. V2.2.5 supports
timed FTP to a web server
Microsoft Windows 95,98, 2000, Possibly ME. XP home, XP Pro
Active Game Port, must be enabled either on the Motherboard or on a plug
in card for example a soundcard gameport.
Temperature Sensor as described.
Installed Joystick driver.
2 Temperature Sensor
The program can use one or two Thermistors connected via the joystick
(game port) on a PC
Two types of sensor are described in the documentation, a simple one
using a plain thermistor or a version using a resistor padded thermistor
to increase the temperature range.
Functions are provided to set the temperature read interval and the
FTP interval for upload, The program alters a sample file called
base.html and replaces variables in it with information from the PC.
When run the program can be minimised at which point it will go to the
system tray as an icon. Hovering a mouse pointer on it will display the
a continously updated csv file is also created with the graph data in
it. this may be opened with excel or similar to display trends over time
or for printing.
NOTE The PC joystick Interface is
inaccurate, there is considerable jitter on the port, while attempts
have been made to average out the problems the basic accuracy with good
calibration is unlikely to be better than ± one degree Celsius and may
Please download and read the acrobat file pcthermometer.pdf for full
instructions. the file contains installation, constructional and
calibration details along with a description of the FTP setup. To
down load this file you may need to right click on it and choose "Save
Target as" to stop it displaying in the acrobat plugin on many browsers
PDF last uploaded 23 March 2002 Please check back for updates.
I will add to it as time permits
The Program is provided in ZIP format containing 4
files, The program (pctemp.exe) a Readme.txt, a Base.html and a
dtemp.cgi file, Download place in directory and unzip. Then make your
own shortcuts to the desktop / menus as required. Download Pctemp.zip
Current Version 2.3.9. Uploaded 10 April 2002
Brief Version History
V1.0 Single Display on desktop, Simple thermistor probe
V1.9 Single Display with Systray Icon
V2.0 Dual Thermistor Version, Ftp to Web address
V2.2.5 Padded Thermistor probe. Timed file without FTP option, Systray
Icon switchable between Probes
V2.3.5 First graphical version, CSV file creation.
V2.3.7 Improved Interface (well I think so :) )
V2.3.8 Fixed Ftp timing problem. inaccurate.
V2.3.9 Fixed FTP on/off causing multiple threads, Fixed Ftp non-recovery
on error, timing better now
If you find this fun or useful, or have any comments please send an
The Program and Instructions are Copyright Spiny
Sept 2001 and may not be reproduced or copied without express
permission. The program PCtemp.exe is supplied as is and is not
warrentied to be fit for any purpose. Installing and using the program
is at your own risk as is making the temperature probe.
The program may not be resold for gain or used as part of a commercial
product without the express written permission of the author.
Author's Site :