Introduction to Physical Computing

ITP

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This sketch will send 2 values as ascii from P5 to arduino

See arduino code in bottom, have LED connected to pin 3 and 5

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move mouseX to dim LED*/

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

var fromSerial = 0; //variable to hold the data

​

function setup() {

  createCanvas(255, 255);

  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

}

​

function draw() {

    background(0,0,255);

  var firstValueToSend = mouseX;

  var secondValueToSend = mouseY;

  // serial.write(firstValueToSend + ","); // this makes it a string and adds a comma

  // serial.write(secondValueToSend +","); // this makes it a string and adds a comma

  // serial.write("\n" );                   // this adds a linefeed in end (ascii 10)

  serial.write(firstValueToSend + ','); // this makes it a string and adds a comma

  serial.write(secondValueToSend + ','); // this makes it a string and adds a comma

  // serial.write("\n" );                   // this adds a linefeed in end (ascii 10)

}

​

// 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]);

  }

}

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function serialEvent() {

  // this is called when data is recieved   

}

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/*  

// Arduino Code 

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void setup() {

  Serial.begin(9600);

}

void loop() {

  if (Serial.available()) {

    int fromSerial = Serial.parseInt();               // read first part of string as int

    analogWrite(3, fromSerial);

    fromSerial = Serial.parseInt();                    // read second part of string as int            

    analogWrite(5, fromSerial);   

  }

}

​

*/