analog input

[jcleaver]

·new question
dont see where the bs2 acepts a strick analog input ie var voltage from 0-5

see pot or rctime does not seem to fit

second part
if the stamp goes to output on startup will that damange a external device


thanks

[PJ Allen]

http://forums.parallax.com/showthread.php?p=577581
·

[jcleaver]

Does not seem to do what i want looking for something that will measure voltage (0-5) all the time
and return a number relating to this does not have to be acccurate

[Bruce Bates]

jcleaver -

Perhaps there wasn't enough specific information there for you to grasp the concept easily. Here is an applications note provided by Dr. Tracy Allen which explains it a bit more clearly and thoroughly:
http://www.emesystems.com/BS2rct.htm#B_voltage

It's that RCTIME method, or hanging an ADC outboard of the Stamp for measuring the voltage. The Stamp has no analog inputs, by design.

Regards,

Bruce Bates

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[jcleaver]

thank you its just what i needed

its great to have someone with your knowledge on this

thanks again

[Paul Baker]

PJ does have knowledge in the matter, he is·just consise in the answer, especially when it is a commonly asked question.

For future reference, do a search using http://search.parallax.com, had you typed RCTIME into the engine, you would have found Tracy's page in the first thread returned by the engine.

Also Tracy's website contains a wealth of information on many subjects concerning the Stamp, when you have the time, take a look at it, it will provide you lots of knowledge on aspects of the Stamp in more depth than the Docs.

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Post Edited (Paul Baker) : 4/28/2006 2:51:45 PM GMT

[jcleaver]

Thanks for the help
could not find the link could you give the address for tracys? This site again

everybody is great on this forum

[Chris Savage]

The address is right in Bruce's message above.· You will need to copy/paste it.· When forum members use the Quick Reply it causes links to not become "active" by default.

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Chris Savage
Parallax Tech Support
csavage@parallax.com (mailto:csavage@parallax.com)

[Paul Baker]

Here's the base page for the stamp section of Tracy's website: http://www.emesystems.com/BS2index.htm

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[jcleaver]

ty