My project is using serial communication between my Visual Basic application and my Arduino Uno that I am using. It makes the arduino always have to be connected with the USB port of my PC.
So.. Do I still need to connect the arduino with the power from DC Power Jack (7-12V) or other input option? Or is it safe to only use USB connector as my arduino main source all the time? Thanks..
Note: I also conncet my Arduino Uno with Ethernet Shield on it if it matters