Do you have some code. A schematic or better description of the "var resistor" or do you mean potentiometer as a voltage divider would help.
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Do you have some code. A schematic or better description of the "var resistor" or do you mean potentiometer as a voltage divider would help.
Dave
Always wear safety glasses while programming.
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Datasheet !!!
High resistance mean a closer look to the A/D section of the Pic datasheet ...
Alain
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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update
code is very simple and i am getting reading from pic so hookup is ok
think the problem is the resistance is so great might need a amp but hate to go through this two wire resistance is connected to ground and pin of pic does flucatate on voltmeter as expected again readings are in millivolts
just dont seem to get pic to respond dont know what range of resistance
or voltage
hook up is straight foward 2 wire device one wire to ground (vss ) other to pic using adcin command
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Well if you think the resistance is to high, test with something else. Fixed resistor for testing?
What about the reference voltage?
Dave
Always wear safety glasses while programming.
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If the code is very simple, then post it.Originally Posted by jcleaver
If the schematic is equally as simple, then post it.
Maybe then, you'll learn something, and then you won't have to ask so many questions later.
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