On Apr 16, 9:26*am, Karl Townsend
wrote:
I built a serial port temp. sensor years ago based on this fella's
work:http://quozl.netrek.org/ts/
And just bought kit 145 from carl's electronics:http://www.kitsrus.com/pdf/k145.pdf
The unit uses DS1820 temp sensors and connects to the pc serial port.
There is a fifty foot run from the computer to the sensor.
My better half made me quit using it because of AM radio interference.
There is a constant beep beep beep.
I'm once again in need of 24 X 7 temp. logging. Is there an easy way
to salvage this unit? Or am I better off to just start over with some
sort of analog unit?
Karl
You could try looping the cable through a ferrite core.
http://www.antennex.com/shack/Dec99/beads.htm
jsw