Sonar
Breadboard for "Sonar"
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.