artik_switch.js

/*
 * Copyright (C) 2017 Samsung Electronics Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

require('dotenv').config();
const artik = require('artik-sdk');
const settings = require('./settings')

var device_id = process.env.SWITCH_DEVICE_ID;
var auth_token = process.env.SWITCH_DEVICE_TOKEN;

if (!device_id || !auth_token) {
    console.log("Either Device ID or Token not found in ENV");
    process.exit(-1);
}
var cloud = new artik.cloud(auth_token);

var actions_button = settings.button, 
	actions_led = settings.led;

var button = new artik.gpio(actions_button, 'button', 'in', 'rising', 0);
var led  = new artik.gpio(actions_led, 'led', 'out', 'none', 0);

var ledState = 1;
function toggleLED () {
	led.request();
	led.write(ledState);
	led.release();
	
	console.log('setLED( ' + actions_led + ') value: ' + ledState);
	ledState ^= 1;
}

button.on('changed', function (value) {
	console.log("button pressed");
	toggleLED();
});

button.request();
	 
process.on('SIGINT', function () {
	console.log('exiting');
	button.release();
	
	process.exit(0);
});