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Sonar

Breadboard for "Sonar"

docs/breadboard/sonar.png

Fritzing diagram: docs/breadboard/sonar.fzz

 

Run with:

node eg/sonar.js
var five = require("johnny-five"),
  board, sonar;

board = new five.Board();

board.on("ready", function() {

  // Create a new `sonar` hardware instance.
  sonar = new five.Sonar("A2");

  // Sonar Properties

  // sonar.voltage
  //
  // Raw voltage
  //

  // sonar.inches
  //
  // Distance reading in inches
  //

  // sonar.cm
  //
  // Distance reading in centimeters
  //


  // Sonar Event API
  //
  // "data" fired continuously
  //
  sonar.on("data", function() {
    /*

      this.voltage - raw voltage reading
      this.inches  - calculated distance, inches
      this.cm  - calculated distance, centimeters

    */
    console.log("data", "Object is " + this.inches + "inches away");
  });

  //
  // "change" fired when distance reading changes
  //
  sonar.on("change", function() {
    console.log("change", "Object is " + this.inches + "inches away");
  });
});

 

License

Copyright (c) 2012, 2013, 2014 Rick Waldron waldron.rick@gmail.com Licensed under the MIT license. Copyright (c) 2014, 2015 The Johnny-Five Contributors Licensed under the MIT license.