When you successfully load a sketch into a microcontroller, you only need to supply power and ground to make the sketch work. I suspect you had the right combination of computer, USB port, USB connector, IDE, and Arduino at one point.
When you successfully load a sketch into a microcontroller, you only need to supply power and ground to make the sketch work. I suspect you had the right combination of computer, USB port, USB connector, IDE, and Arduino at one point.