Create 24_ArduinoSensor.js

Author: jywarren

src/data/examples/en/10_Interaction/24_ArduinoSensor.js

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+/*
+ * @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.
+ * 
+ * https://github.com/publiclab/webjack
+ * 
+ * Note: WebJack library must be added to your index.html as
+ * <script src="https://webjack.io/dist/webjack.js"></script>
+ * 
+ * Testing audio: https://www.youtube.com/watch?v=GtJW1Dlt3cg
+ * Load this sketch onto an Arduino: 
+ * https://create.arduino.cc/editor/jywarren/023158d8-be51-4c78-99ff-36c63126b554/preview
+ * Arduino will output audio from pin 3 + ground. Use microphone or an audio cable.
+ */
+
+function setup() { 
+  createCanvas(400, 400);
+  noStroke();
+  fill('#ff00aa22');
+} 
+
+// Set up the WebJack connection.
+// Use default profile: https://github.com/publiclab/webjack/blob/master/src/profiles.js
+var profile = WebJack.Profiles["SoftModem"];
+var connection = new WebJack.Connection(profile);
+
+// Runs every time a signal is 'heard'
+connection.listen(function(data) {
+  
+  // Draw an ellipse at a height corresponding to the value received from the Arduino (sensor)
+  ellipse(400/2, 400 - (data * 5), 20, 20);
+
+});