Processing Code

import processing.serial.*;

Serial myPort;
int xPos = 1;

void setup () {
size(400, 300);
println(Serial.list());
myPort = new Serial(this, Serial.list()[0], 9600);
myPort.bufferUntil('\n');
background(0);
}
void draw () {
}
void serialEvent (Serial myPort) {
String inString = myPort.readStringUntil('\n');

if (inString != null) {

inString = trim(inString);

float inByte = float(inString);
inByte = map(inByte, 0, 1023, 0, height);


stroke(127,34,255);
line(xPos, height, xPos, height - inByte);

if (xPos >= width) {
xPos = 0;
background(0);
}
else {
xPos++;
}
}
}