Quote Originally Posted by mark_s View Post
In that case you need a pic12f1822 or similar with an internal vref. The internal vref will work with the adc or comparator module.
OK, now that is helpful. I was not aware of an 8-pin chip with all those features and at a good price too! Now I'll just have to learn how to configure the internal Vref to get the results I need. Another slog through data sheets that can take hours!