upm/examples/javascript/groverelay.js

/*
 * Author: Sarah Knepper <sarah.knepper@intel.com>
 * Copyright (c) 2015 Intel Corporation.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

// Load Grove module
var groveSensor = require('jsupm_grove');

// Create the relay switch object using GPIO pin 0
var relay = new groveSensor.GroveRelay(0);

// Close and then open the relay switch 3 times,
// waiting one second each time.  The LED on the relay switch
// will light up when the switch is on (closed).
// The switch will also make a noise between transitions.
var i = 0;
var waiting = setInterval(function() {
        if ( i % 2 == 0 ) {
            relay.on();
            if ( relay.isOn() )
                console.log(relay.name() + " is on");
        } else {
            relay.off();
            if ( relay.isOff() )
                console.log(relay.name() + " is off");
        }
        i++;
        if ( i == 6) clearInterval(waiting);
        }, 1000);