* @name Arduino sensor data via WebJack

 * @description WebJack is a way to read data from an Arduino (and other sources)

 * using audio -- it basically turns your Arduino into an audio modem.

 * 

 * <a href = "https://github.com/publiclab/webjack">https://github.com/publiclab/webjack</a>

 * 

 * Note: WebJack and p5-webjack libraries must be added to your index.html as follows:

 * <pre><code class="language-markup">&lt;script src="https://webjack.io/dist/webjack.js">&lt;/script></code></pre>

 * <pre><code class="language-markup">&lt;script src="https://jywarren.github.io/p5-webjack/lib.js">&lt;/script></code></pre>

 * 

 * Working example: <a href = "https://editor.p5js.org/jywarren/sketches/rkztwSt8M">https://editor.p5js.org/jywarren/sketches/rkztwSt8M</a>

 * 

 * Testing audio: <a href="https://www.youtube.com/watch?v=GtJW1Dlt3cg">https://www.youtube.com/watch?v=GtJW1Dlt3cg</a>

 * Load this sketch onto an Arduino: 

 * <a href="https://create.arduino.cc/editor/jywarren/023158d8-be51-4c78-99ff-36c63126b554/preview">https://create.arduino.cc/editor/jywarren/023158d8-be51-4c78-99ff-36c63126b554/preview</a>

 * Arduino will output audio from pin 3 + ground. Use microphone or an audio cable.

 */

​

function setup() { 

  createCanvas(400, 400);

  noStroke();

  fill('#ff00aa22');

  receiveSensorData(handleData);

}

​

function handleData(data, connection) {

​

  console.log(data); // output the values to log

  // data[0] is the 1st value, data[1] 2nd, etc.

​

  // draw stuff! Browse http://p5js.org/reference/

  background('#ddd');

  ellipse(100, 200, data[0]+10, data[0]+10);

​

  // connection.send('send data back to the Arduino if its listening');

}

​