Sending info to website

As @DrAzzy says, the most simple, hacky way to send data is (for example to send temperature):

require("http").get("http://www.mysite.com?temp="+E.getTemperature(), function(res) {
  var contents = "";
  res.on('data', function(data) { contents += data; });
  res.on('close', function() { console.log("Done! Got "+contents); });
});

Ideally you would use HTTP POST to stop accidental puts of data by web crawlers, in which case you could do:

function sendData() {
  var options = {
    host: 'mysite.com',
    port: '80',
    path:"pageName?temp="+E.getTemperature(),
    method:'POST'
  };
  require("http").request(options, function(res)  {
    var d = "";
    res.on('data', function(data) { d+=data; });
    res.on('close', function(data) {
      console.log("Done! Got "+d);
    });
 }).end();
}