Temp sensor remote probe

Interfacing hardware, sensors, output drivers, chips.
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chem guy
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Joined: Sun Feb 28, 2010 6:59 pm

Temp sensor remote probe

Post by chem guy » Wed Mar 31, 2010 12:11 pm

I'm interested in the optional remote probe input listed on the Temp sensor page. I'd like to monitor the temperature of an LED array about 5 feet away from the arduino board. How exactly does the remote probe work?

paul
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Joined: Mon May 12, 2008 4:19 pm

Re: Temp sensor remote probe

Post by paul » Fri Apr 02, 2010 10:10 pm

See the datasheet - all you need is an NPN transistor and a couple of resistors.

http://focus.ti.com/lit/ds/symlink/tmp421.pdf

Paul

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