amirgeva

Thanks. That's clear now.

I'm not sure I understand you. I don't want to drive it HIGH, just LOW, but I want to make sure I control when it goes LOW. Perhaps I just don't fully understand how an output pins works. When I use pinMode for output, does it start driving...

Assuming there is nothing external driving the line, I want to know if there is something I can do in order to make sure I can control what it is. Lets assume, for example, that I'm using an input pin with an internal pull up to connect to a...

I'm connecting GPIO pins to a bus, where some of the time they're used as inputs, and some of the time they are output. Is there a way to know what would be the voltage between the pinMode(pin,OUTPUT) and the digitalWrite(pin,value) (even if it...