On 6/4/07, Jim Wagner <jim_d_wagner@applelinks.net> wrote: > Some devices allow interrnal pullup to remain on in ADC > mode. Check that pullups, etc, are off on those pins. That could well be it, or the sourcing impedance is too high on whatever is driving the pins. There is a certain amount of leakage current possible, that might be giving you anomalously high voltages. IIRC they want the source impedance below 10k.
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Re: [AVR-Chat] adc wont read below 0.8v?
2007-06-05 by David VanHorn