Hello, I am using an ATtiny in a battery application and I don't want to leave any pins floating during sleep to save power. I configured all unused pins as input pullup. The output pins are low during sleep and used input pins are already grounded by potentiometers, LEDs, resistors or sensor. The only concern of mine is the RESET pin.
As far as I know the RESET pin must be high in order to prevent resets. But also it must be abled to be pulled low in order to program ATtiny. I don't want to loose my ability to program but also I don't want to leave RESET pin floating. Can I configure it as Input Pullup and leave it like that always? Would Arduino manage to reset it during programming, theoretically pulled up pins are still able to be grounded by external sources (in this case Arduino as programmer) but I wanted to be made sure, better be safe than sorry.
Thanks.