? about temp sensor

preston

· I recently bought a LM34 TEMPERATURE PROBE and a basic 2 stamp (BOE).· Just wondering if the two are compatible?· If so, how is it wired to the bs2?

·· thanks in advance.

·

Jon Williams

Yes. Download our "Applied Sensors" text connections and code.

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Jon Williams
Applications Engineer, Parallax
Dallas Office

Tracy Allen

You will need an analog to digital converter. The Stamp does not have one built in. The output of the LM34 is 10 millivolts per degree Fahrenheit.

Well, it is not quite true that you can't use the LM34 with the BS2 without an analog to digital converter. The LM34 can be configured with a resistor to output a current proportional to temperature, and then you can use the Stamp's native RCtime command to read the temperature. (The Applied Sensors text has lots of information about how to use the RCtime command.)

- - Tracy

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Tracy Allen
www.emesystems.com

AlWilliamsAWC

Here's an article about using a PAK-XII (which is an A/D and a math coprocessor) connected to a Stamp and an LM34 to do temperature measurements: http://www.al-williams.com/pak12app.htm. Of course, this is overkill unless you want the advanced math capabilities.

Regards,

Al Williams
AWC
8 Channels of PWM
http://www.awce.com/pak5.htm
·

preston

·Thanks for the reply's, ·but i can't seem to find·The "Applied Sensors" download.· I know it's here some where but no luck.

Thanks

Bruce Bates

Preston -

You can download that text from the link below, thanks to Parallax!
http://www.parallax.com/detail.asp?product_id=28127

Regards,

Bruce Bates