Greetings, basically I'm an arduino noob, first forum post and all but I found something quite pecuilar during my current project. I have a potentiometer that sends analog signals to the A0 port and the arduino then uses that value to write to an ESC and run a motor. But I digress the real mystery is when I remove my potentiometer from my breadboard, the arduino reads analog values ranging from 271 - 309 which then moves my motor. I was just wondering why, if there's no electrical connection there, where do those strange values come from.
Thanks In Advance Dudes