laravel4cookbook

Embedded Systems 302
25 var parts = data.split(",");
26
27 if (parts[0] == "analogRead") {
28 sensor.val(parseInt(parts[2], 10));
29 }
30
31 });
32
33 window.socket = socket;
34
35 led.on("change", function() {
36 socket.send("analogWrite,6," + led.val() + ".");
37 });
38
39 x.on("change", function() {
40 socket.send("servoWrite,5," + x.val() + ".");
41 });
42
43 y.on("change", function() {
44 socket.send("analogWrite,3," + y.val() + ".");
45 });
46
47 setInterval(function() {
48 socket.send("analogRead,0,void.");
49 }, 1000);
50
51 }
52 } catch (e) {
53 // console.log("exception: " + e);
54 }
.
This was extracted from public/js/shared.js.
This script does a number of cool things. When it loads, we set the pinMode of the LED pin (6) and
the two servo pins (3, 5) to the correct modes. We also attach a message event listener to receive and
parse messages from the Arduino.
We then attach some event listeners for the input elements in the interface. These will respond to
changes in value by sending signals to the Arduino to adjust its various pin values.
Finally, we set a timer to ping the Arduino with analogRead requests on the sensor pin. Thanks to