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Temperature logger kit, serial interface to pc, K145
Serial Port Temperature Logger Kit
Measure and record temperature on a PC
Includes PCB and all components
provides realtime data via the serial port
interfaces up to 4 x DS18S20 sensors (one provided)
accuracy to 0.5 degrees centigrade
ahrenheit scale selected by a jumper
data stream easily logged & processed
over 200m distance for each sensor
A PC controlled 4 channel (1 sensor provided) temperature meter (either deg C or F) using the serial port, a PIC12C509 and 4 x DS1820. No external power required. Each DS1820 may be located over 200 meters away from the motherboard and PC. This is an ideal use for old 386 and 486 computers: continuous temperature data logging. Users will have to massage the input data stream to their purpose. It may be dumped into an Excel spreadsheet, or they can write BASIC programs using the INPUT command to grab the readings. As you can see from the photo there is not much to the hardware. (Developed by James Cameron and you can read his documentation here)
The source code is available from the developer here
1. You can use term.exe our no-frills terminal program to see the data on the screen. Just run 'term 2400' (and you may have to press Esc to start the display.) The raw temperature data will display on the screen.
2. Or you can use some software the developer of the kit has written. Here are the latest versions: ts11win.zip for Microsoft Windows. Tested on Microsoft Windows 95. Unpack the ZIP file into a directory and run TSL.EXE. Test reports wanted for Microsoft Windows 98, and Microsoft Windows NT.
ts11dos.zip for FreeDOS or MS-DOS. Tested on MS-DOS 4.00.950 on a 386/25 using floppy disk only, and on a machine with a hard drive. With floppy disk, do not exceed a logging rate of once every two seconds. Unpack the ZIP file onto a bootable floppy or a hard disk directory, then run TSL.EXE. If you have no hard disk partition, ignore the warning message about "c:\cwsdpmi.swp"
C source code for these two programs
Software for Kit 145 was written by James Cameron. Linux and UNIX software for K145 is available on his website
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