Mind blown. Very nice work!
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Quoted from Gornkleschnitzer:Zener diode trick is interesting, I may need to incorporate that into my next design. (Since I'm really that unhinged.)
The resistor pulls the reset line up to 5V. Although the chip generally works as intended when sitting on the bench, having the reset pin floating means it could end up getting tripped unintentionally. I don't know if this specifically helped my issue or not, but all the AVR help sites recommended doing it.
I have no idea what any of this means, but good job getting through it with a positive outcome. I am watching this project with high anticipation of what it will be when finished.
You do very nice work, keep it rolling!
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