arduino + processing code

arduino + processing code

//Arduino Code       //Arduino code //ADC + Serial Communication int reading;                // the readings from the analog input int inputPin = 0; void setup() {   Serial.begin(9600);                     // initialize serial communication with computer   } void loop() {     reading = analogRead(inputPin); // read from the sensor   Serial.println(reading);                // send it to the computer (as ASCII digits) }

//Processing Code       // Example by Tom Igoe import processing.serial.*; int lf = 10;    // Linefeed in ASCII //String myString = null; Serial myPort;  // The serial port int i; void setup() {   // List all the available serial ports   println(Serial.list());   size (800, 450);   // I know that the first port in the serial list on my mac   // is always my  Keyspan adaptor, so I open Serial.list()[0].   // Open whatever port is the one you're using.   myPort = new Serial(this, Serial.list()[0], 9600);   myPort.clear();   // Throw out the first reading, in case we started reading   // in the middle of a string from the sender.   //myString = myPort.readStringUntil(lf);   //myString = null; } void draw() {   background (255);     while (myPort.available() > 0) {     String myString;     myString = myPort.readStringUntil(lf);     if (myString != null) {       i = int(trim(myString));       println(i);     }   }   ellipse (width/2, height/2, i, 100); }