I am porting a small project off-board and am going to use an ATTiny85. I am sure this has been asked and I think I know the answer but want to double check myself. Pin 1 and Pin 5 are not being used should I tie them to ground or just leave them alone? I am going to have the board made by Fritzing and would hate to pay for a board and find my mistake later…
super sorry, not only is this topic beat to death, it was a lot easier to find the answer than I thought. Amtel recommends leaving them un-connected and setting them to INPUT_PULLUP...
You should either enable the internal pullup or tie the pins to VCC using a ~10 k resistor. One resistor is sufficient for the two pins.
The apology is not necessary. It can sometimes be difficult to find just the right incantation to appease Google.
Thank you for taking the time to follow-up with the answer.