PR$01$ Write an arduino program that reads two potentiometers and a button and sends their values from the arduino to a Processing sketch. The sketch should open up a $600$x $600$ window, and draw a black circle at $($X$,$Y$)$ if the button is pressed, and a white circle at $($X$,$Y$)$ if the button is NOT pressed, where X and Y are the values of the pots.