Introduction to Physical Computing

ITP

​

This sketch will send one binary byte from P5 to arduino

See arduino code in bottom, have LED connected to pin 3

​

move mouseX to dim LED*/

var serial; // variable to hold an instance of the serialport library

var capture;

​

function setup() {

  createCanvas(320, 240);

  serial = new p5.SerialPort(); // make a new instance of  serialport librar    

  serial.on('list', printList); // callback function for serialport list event

  serial.on('data', serialEvent); // callback for new data coming in    

  serial.list(); // list the serial ports

  serial.open("/dev/tty.usbmodem144201"); // open a port

  capture = createCapture(VIDEO);

  capture.size(width, height);

  capture.hide();

}

​

function draw() {

  background(255,0,0);

  image(capture, 0, 0);

  var ourPixel = get(mouseX, mouseY);

  var ourBrightness = floor(brightness(ourPixel));

  serial.write(ourBrightness);

​

}

​

// get the list of ports:

function printList(portList) {

  for (var i = 0; i < portList.length; i++) {

    // Display the list the console:

    print(i + " " + portList[i]);

  }

}

​

function serialEvent() {

  // this is called when data is recieved   

}

​

/*  

// Arduino Code 

void setup() {

  Serial.begin(9600);

}

void loop() {

  if(Serial.available()){

  byte byteFromSerial = Serial.read();

  analogWrite(3,byteFromSerial);

  }

}

*/