77 lines
2.1 KiB
JavaScript
77 lines
2.1 KiB
JavaScript
var Tinkerforge = require('../Tinkerforge')
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, Conf = require('./config.json')
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, http = require('http');
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var HOST = Conf.host;
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var PORT = Conf.port;
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var UID = Conf.uid;
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var ipcon = new Tinkerforge.IPConnection(); // Create IP connection
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var dus = new Tinkerforge.BrickletDistanceUS(UID, ipcon); // Create device object
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var counter = 0;
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var readyForNextNotification = true;
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ipcon.connect(HOST, PORT,
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function (error) {
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console.log('Error: ' + error);
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}
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); // Connect to brickd
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// Don't use device before ipcon is connected
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ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
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function (connectReason) {
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// Set period for distance value callback to 0.2s (200ms)
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// Note: The distance value callback is only called every 0.2 seconds
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// if the distance value has changed since the last call!
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dus.setDistanceCallbackPeriod(200);
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}
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);
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// Register distance value callback
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dus.on(Tinkerforge.BrickletDistanceUS.CALLBACK_DISTANCE,
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// Callback function for distance value callback
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function (distance) {
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//console.log('Distance Value: ' + distance);
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if(distance < 200 && readyForNextNotification) {
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counter++;
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readyForNextNotification = false;
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var url2callObj = (counter % 2 == 0 ? Conf.on.action.on : Conf.on.action.off);
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console.log('Distance Value: ' + distance + ', URL to call: ' + url2callObj.host + ':' + url2callObj.port + url2callObj.path);
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doHoBuDoorBellCall(url2callObj);
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setTimeout(function() { readyForNextNotification = true; }, Conf.on.action.timeout);
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}
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}
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);
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console.log('Press key to exit');
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process.stdin.on('data',
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function (data) {
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ipcon.disconnect();
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process.exit(0);
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}
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);
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/* private */
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function doHoBuDoorBellCall(options) {
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callback = function(response) {
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var str = '';
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//another chunk of data has been recieved, so append it to `str`
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response.on('data', function (chunk) {
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str += chunk;
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});
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//the whole response has been recieved, so we just print it out here
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response.on('end', function () {
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console.log(str);
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});
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}
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http.request(options, callback).end();
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} |