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+/*
+  Temperature web interface
+ 
+ This example shows how to serve data from an analog input  
+via the Arduino Yún's built-in webserver using the Bridge library.
+ 	
+ The circuit:
+ * TMP36 temperature sensor on analog pin A1
+ * SD card attached to SD card slot of the Arduino Yún
+ 
+ Prepare your SD card with an empty folder in the SD root 
+ named "arduino" and a subfolder of that named "www". 
+ This will ensure that the Yún will create a link 
+ to the SD to the "/mnt/sd" path.
+ 
+ In this sketch folder is a basic webpage and a copy of zepto.js, a 
+ minimized version of jQuery.  When you upload your sketch, these files
+ will be placed in the /arduino/www/TemperatureWebPanel folder on your SD card.
+ 
+ You can then go to http://arduino.local/sd/TemperatureWebPanel
+ to see the output of this sketch.
+ 
+ You can remove the SD card while the Linux and the 
+ sketch are running but be careful not to remove it while
+ the system is writing to it.
+ 
+ created  6 July 2013
+ by Tom Igoe
+
+ 
+ This example code is in the public domain.
+ 	 
+ */
+#include <Bridge.h>
+#include <YunServer.h>
+
+// Listen on default port 5555, the webserver on the Yun
+// will forward there all the HTTP requests for us.
+YunServer server;
+
+void setup() {
+  Serial.begin(9600);
+
+  // Bridge startup
+  pinMode(13,OUTPUT);
+  digitalWrite(13, LOW);
+  Bridge.begin();
+  digitalWrite(13, HIGH);
+
+  // using A0 and A2 as vcc and gnd for the TMP36 sensor:
+  pinMode(A0, OUTPUT);
+  pinMode(A2, OUTPUT);
+  digitalWrite(A0, HIGH);
+  digitalWrite(A2, LOW);
+
+  // Listen for incoming connection only from localhost
+  // (no one from the external network could connect)
+  server.listenOnLocalhost();
+  server.begin();
+}
+
+void loop() {
+  // Get clients coming from server
+  YunClient client = server.accept();
+
+  // There is a new client?
+  if (client) {
+    // read the command
+    String command = client.readString();
+    command.trim();        //kill whitespace
+    Serial.println(command);
+    // is "temperature" command?
+    if (command == "temperature") {
+      int sensorValue = analogRead(A1);
+      // convert the reading to millivolts:
+      float voltage = sensorValue *  (5000/ 1024); 
+      // convert the millivolts to temperature celsius:
+      float temperature = (voltage - 500)/10;
+      // print the temperature:
+      client.print("Current temperature: ");
+      client.print(temperature);
+      client.print(" degrees C");
+
+    }
+
+    // Close connection and free resources.
+    client.stop();
+  }
+
+  delay(50); // Poll every 50ms
+}
+