I want to see the console output of my robot on the Arduino Serial Monitor. I have a USB cable connecting the Arduino Nano to my laptop but the battery is not switched on right now. I see some text on the serial monitor about the sensors which changes as i move the robot around.
My question: is it possible to safely switch on the battery in order to control the robot during its normal operation while at the same time obtain information on the serial monitor via USB?
But doing this would probably fry the USB port and/or kill the Arduino since it would receive power from the USB port and the battery? It happened to me when i was working on an earlier project and i forgot to unplug the USB cable after uploading the sketch before switching on the battery. RIP Arduino. :( In that case, how to see the serial monitor output when the robot is operational?