dragonuv wrote:and the 0.7 * vcc doesn't make sense,
if you don't believe me, (by the way, i got it wrong, at 5V it's 0.6 * Vcc), you could always read the f*cking data sheet. it appears that you have switched back to the arduino. in my copy of the megax8 data sheet, which dates from sept '07, the relevant information is on page 304.
even if the avr senses a high on the input as it zips past 3v, isn't it reasonable that the cap should eventually charge all the way to 5v?
since it appears that i have exited the realm of civilized discourse, perhaps i should ignore this thread in the future.