serial with p5 sketch

password:pcomp

I try to do a sketch that can both control the size of the circle as well as the sound. But I didn't find way to control the sound.

I watched the video tutorial to do this very simple circuit. A 10k potentiometer connect to A0 + and ground.

p5 sketch

http://alpha.editor.p5js.org/full/rk1sdyiTb

http://alpha.editor.p5js.org/techlu/sketches/rk1sdyiTb