Im using the adc on a mega8 with a 5v LM4050 precision shunt as an external reference. I am able to read the full scale of 0 to 1023, the problem is that 0 is returned for any voltage under about 0.84v. Is this a limitation of the adc or am I doing something wrong? thanks
--Aaron
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adc wont read below 0.8v?
2007-06-04 by A F