Along these lines...

What happens if I need to measure a resistance to the tune of 100K to 1M
using the ad on the 16F877?

I had been toying with the idea of using a fixed resistance and the variable
forming a voltage divider, with the common point being fed to the PIC AD.
Following this thread's indicated that the max. impedence for reliable
operation should NOT be more than 20K. Are there any suggestions?

The resisatnce to be measured is in fact a sensor, and therefore I do not
require the reading in ohms, as such. A look up table can give me the values
to be indiacted on the diaplay.

Regards,

Anand Dhuru

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