Reading the Analog Inputs
Use Analog Input 1 to control the size of the ellipse
import processing.serial.*;
EZIO ezio;
int out;
void setup()
{
println(Serial.list());
ezio = new EZIO (this,"/dev/ttyUSB0");
out=0;
size(600,600);
}
void draw ()
{
int d;
int i;
int a;
background(0,0,0);
fill(255,255,255);
a = ezio.a2d(0);
ellipse(300,300,a,a);
}