QuoteSo you never use pin0 as input/output?Or pin 1, if you can avoid it. They are the serial port pins.Your schematic shows that you are not using pin 0, anyway. I'm confused.
So you never use pin0 as input/output?
but an example taken from arduino.cc but it is very similar
I'm curious, which resistor should I use if I want to set it to LOW?
forgive me Pauls, I'm just getting into this world and I have to learn a lot of things.