Hello, I am new to the world of programming and just revived my arduino UNO. I am looking at the board and have questions about some of the markings next to the pin holes. Here are the ones I would like to know about: The reset pin: what is it and what dose it do in general. The 5V pin: dose it always send out 5V or only when instructed to? the Vin pin: what is it and what dose it do in general.
Thanks in advance. :)