1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/Touchiot/main.js Thu Jun 04 14:50:33 2015 +0200
1.3 @@ -0,0 +1,91 @@
1.4 +/*jslint node:true,vars:true, unparam:true */
1.5 +/*jshint unused:true */
1.6 +
1.7 +
1.8 +/*
1.9 +The Touch Notifier Node.js sample application distributed within Intel® XDK IoT Edition under the IoT with Node.js Projects project creation option showcases how to read digital data from a Grover Starter Kit Plus – IoT Intel® Edition Touch Sensor, start a web server and communicate wirelessly using WebSockets.
1.10 +
1.11 +MRAA - Low Level Skeleton Library for Communication on GNU/Linux platforms
1.12 +Library in C/C++ to interface with Galileo & other Intel platforms, in a structured and sane API with port nanmes/numbering that match boards & with bindings to javascript & python.
1.13 +
1.14 +Steps for installing MRAA & UPM Library on Intel IoT Platform with IoTDevKit Linux* image
1.15 +Using a ssh client:
1.16 +1. echo "src maa-upm http://iotdk.intel.com/repos/1.1/intelgalactic" > /etc/opkg/intel-iotdk.conf
1.17 +2. opkg update
1.18 +3. opkg upgrade
1.19 +
1.20 +Article: https://software.intel.com/en-us/html5/articles/iot-touch-notifier-nodejs-and-html5-samples
1.21 +*/
1.22 +
1.23 +//MRAA Library was installed on the board directly through ssh session
1.24 +var mraa = require("mraa");
1.25 +var mqtt = require("mqtt");
1.26 +var http = require("http");
1.27 +
1.28 +function setOpenhabState(txtNewState) {
1.29 + http.get("http://192.168.42.245:8080/CMD?door_bell="+txtNewState);
1.30 +}
1.31 +
1.32 +//GROVE Kit Shield D6 --> GPIO6
1.33 +//GROVE Kit Shield D2 --> GPIO2
1.34 +function startSensorWatch(socket) {
1.35 + 'use strict';
1.36 + var touch_sensor_value = 0, last_t_sensor_value;
1.37 + var mqtcli = mqtt.connect('mqtt://raspeinz.local/');
1.38 +
1.39 + //Touch Sensor connected to D2 connector
1.40 + var digital_pin_D2 = new mraa.Gpio(2);
1.41 + digital_pin_D2.dir(mraa.DIR_IN);
1.42 +
1.43 + //Buzzer connected to D6 connector
1.44 + var digital_pin_D6 = new mraa.Gpio(6);
1.45 + digital_pin_D6.dir(mraa.DIR_OUT);
1.46 +
1.47 + digital_pin_D6.write(0);
1.48 +
1.49 + setInterval(function () {
1.50 + touch_sensor_value = digital_pin_D2.read();
1.51 + if (touch_sensor_value === 1 && last_t_sensor_value === 0) {
1.52 + console.log("Buzz ON!!!");
1.53 + socket.emit('message', "present");
1.54 + mqtcli.publish('door', 'ding');
1.55 + //mqtcli.end(); // end connection
1.56 +// FUR ULRICH! //http.get("http://ulno.local:8080/CMD?door_bell=ON");
1.57 + digital_pin_D6.write(touch_sensor_value);
1.58 + } else if (touch_sensor_value === 0 && last_t_sensor_value === 1) {
1.59 + console.log("Buzz OFF!!!");
1.60 + //socket.emit('message', "absent");
1.61 + mqtcli.publish('door', 'dong');
1.62 +// FUR ULRICH! //http.get("http://ulno.local:8080/CMD?door_bell=OFF");
1.63 + digital_pin_D6.write(touch_sensor_value);
1.64 + }
1.65 + last_t_sensor_value = touch_sensor_value;
1.66 + }, 500);
1.67 +}
1.68 +
1.69 +//Create Socket.io server
1.70 +//var http = require('http'); // See top requires
1.71 +var app = http.createServer(function (req, res) {
1.72 + 'use strict';
1.73 + res.writeHead(200, {'Content-Type': 'text/plain'});
1.74 + res.end('<h1>Hello world from Intel IoT platform!</h1>');
1.75 +}).listen(1338);
1.76 +var io = require('socket.io')(app);
1.77 +
1.78 +console.log("Sample Reading Touch Sensor");
1.79 +
1.80 +//Attach a 'connection' event handler to the server
1.81 +io.on('connection', function (socket) {
1.82 + 'use strict';
1.83 + console.log('a user connected');
1.84 + //Emits an event along with a message
1.85 + socket.emit('connected', 'Welcome');
1.86 +
1.87 + //Start watching Sensors connected to Galileo board
1.88 + startSensorWatch(socket);
1.89 +
1.90 + //Attach a 'disconnect' event handler to the socket
1.91 + socket.on('disconnect', function () {
1.92 + console.log('user disconnected');
1.93 + });
1.94 +});
