eco-server/tools/mockData.js

A data driven, UDP streamed Arduino robot for the 2014 Robot Challenge in Vienna, Austria.

var net = require('net'),
	client = require('dgram').createSocket("udp4");

// Mock sensors
var mockSensors = [
	{ sensor: 'temperature', maxValue: 30, unit: 'C' },
	{ sensor: 'distance', maxValue: 10, unit: 'm' },
	{ sensor: 'light', maxValue: 15, unit: 'Ω' },
	{ sensor: 'air_quality', maxValue: 10, unit: 'R' },
	{ sensor: 'compass', maxValue: 360, unit: 'd' },
	{ sensor: 'range1', maxValue: 400, unit: 'cm' },
	{ sensor: 'range2', maxValue: 400, unit: 'cm' },
	{ sensor: 'range3', maxValue: 400, unit: 'cm' },
	{ sensor: 'range4', maxValue: 400, unit: 'cm' },
	{ sensor: 'range5', maxValue: 400, unit: 'cm' },
	{ sensor: 'range6', maxValue: 400, unit: 'cm' },
	{ sensor: 'range7', maxValue: 400, unit: 'cm' },
	{ sensor: 'range8', maxValue: 400, unit: 'cm' },
	{ sensor: 'carbon', maxValue: 1000, unit: 'ppm' }
];

sendRandomData(client);

// send random streams of data
function sendRandomData(client) {
	var time = Math.floor(Math.random() * 1000);

	setTimeout(function() {
		var sensor = mockSensors[Math.floor(Math.random() * mockSensors.length)];
		sensor.value = Math.floor(Math.random() * sensor.maxValue);
		sensor.date = Date.now();

		var message = new Buffer(JSON.stringify(sensor, ["sensor", "value", "unit", "date"]) + "|");
		client.send(message, 0, message.length, 5432, "localhost", function(err, bytes) {
			//client.close();
		});
		sendRandomData(client);
	}, time);
};