David, I have been using a basic stamp I to do this with 2 sensors and store anywhere from 8000 to 32000 temp readings. the datalogger is pretty cheap (<$60US) and I'm working to use a 16F84 to make it even cheaper (<$40US). this project was fairly easy to do and my loggers blow away any commercial versions in both price and performance. sorry if this sounds like a commercial... contact me off this list and i can give you details on building your own and code, etc. BTW, if you are monitoring a Pentium II(r) processor, there is a thermal diode on the die that I have accessed to get the actual processor temperature. there are 3 pins on all Pentium II(r) motherboards to solder connections to and then just measure the diode temp. it is pretty easy to write software to monitor the CPU utilization to correlate CPU stress (usage) vs. die temperatures, etc. regards Pat patrick.g.opdahl@intel.com -----Original Message----- From: David Nottage [mailto:d.nottage@SACBH.COM.AU] Sent: Wednesday, January 06, 1999 3:26 PM To: PICLIST@MITVMA.MIT.EDU Subject: PIC boards for PC? I'm looking for a way to control/monitor at least 2 temperature sensors from my PC, and have come across PICmicro controllers as a possible way, so I can control other equipment if I might need. What I'm looking for is something I can plug into my PC, either by one of the ports (preferably parallel) or an ISA slot that comes with software and some guidance on how to interface it with temperature sensors. All of this preferably inexpensively (under US$60).