Updated XivelyClient example

libraries/Bridge/examples/XivelyClient/XivelyClient.ino

@@ -1,16 +1,13 @@
-
 /*
   Xively sensor client with Strings 
  
  This sketch connects an analog sensor to Xively,
- using an Arduino Yun. 
+ using an Arduino Yún. 
  
- created  15 March 2010
+ created 15 March 2010
  updated 27 May 2013
  by Tom Igoe
  
- NOT CURRENTLY WORKING as of Arduino 1.5.3 27 May 2013
- 
  */
 
 // include all Libraries needed:
@@ -25,88 +22,89 @@
  #define APIKEY        "foo"                  // replace your pachube api key here
  #define FEEDID        0000                   // replace your feed ID
  #define USERAGENT     "my-project"           // user agent is the project name
-  */
+ */
 
 
 // set up net client info:
-boolean lastConnected = false;      // state of the connection last time through the main loop
-const unsigned long postingInterval = 60000;  //delay between updates to Pachube.com
+const unsigned long postingInterval = 60000;  //delay between updates to xively.com
 unsigned long lastRequest = 0;      // when you last made a request
 String dataString = "";
-Process xively;
 
 void setup() {
   // start serial port:
-  Serial.begin(9600);
   Bridge.begin();
-  delay(2000);
+  Console.begin();
 
-  while(!Serial);    // wait for Serial Monitor to open
-  Serial.println("Xively client");
+  while(!Console);    // wait for Network Console to open
+  Console.println("Xively client");
 
-  // reserve space for dataString:
-  dataString.reserve(100);
+  // Do a first update immediatly
+  updateData();
   sendData();
+  lastRequest = millis();
 }
 
 void loop() {
   // get a timestamp so you can calculate reading and sending intervals:
   long now = millis();
 
-  // convert the readings to a String to send it:
-  dataString = "temp,";
-  dataString += random(10) + 20;
-  // add pressure:
-  dataString += "\nPressure,";
-  dataString += random(5) + 100;
-
-  // if there's incoming data from the net connection,
-  // send it out the serial port:
-  if (xively.available()>0) {
-    char c = xively.read();
-    Serial.write(c);
-  }
-
-
-  // if you're not connected, and the sending interval has passed since
-  // your last connection, then connect again and send data:
-  if(now - lastRequest >= postingInterval) {
+  // if the sending interval has passed since your
+  // last connection, then connect again and send data:
+  if (now - lastRequest >= postingInterval) {
+    updateData();
     sendData();
     lastRequest = now;
   }
 }
 
+void updateData() {
+  // convert the readings to a String to send it:
+  dataString = "Temperature,";
+  dataString += random(10) + 20;
+  // add pressure:
+  dataString += "\nPressure,";
+  dataString += random(5) + 100;
+}
+
 // this method makes a HTTP connection to the server:
 void sendData() {
-  Serial.println("Sending data");
-  dataString = "--data \'" + dataString;
-  dataString += "\'";
-
   // form the string for the API header parameter:
-  String apiString =  "--header \"X-ApiKey: ";
+  String apiString = "X-ApiKey: ";
   apiString += APIKEY;
-  apiString += "\"";
 
   // form the string for the URL parameter:
-  String url =  " \"https://api.xively.com/v2/feeds/";
+  String url = "https://api.xively.com/v2/feeds/";
   url += FEEDID;
-  url += ".csv\"";
- 
-  // send the HTTP PUT request:
+  url += ".csv";
+
+  // Send the HTTP PUT request
+
+  // Is better to declare the Process here, so when the
+  // sendData function finishes the resources are immediatly
+  // released. Declaring it global works too, BTW.
+  Process xively;
+  Console.print("\n\nSending data... ");
   xively.begin("curl");
   xively.addParameter("-k");
-  xively.addParameter("--request PUT");
+  xively.addParameter("--request");
+  xively.addParameter("PUT");
+  xively.addParameter("--data");
   xively.addParameter(dataString);
+  xively.addParameter("--header");
   xively.addParameter(apiString); 
   xively.addParameter(url);
   xively.run();
+  Console.println("done!");
+
+  // If there's incoming data from the net connection,
+  // send it out the Console:
+  while (xively.available()>0) {
+    char c = xively.read();
+    Console.write(c);
+  }
+
 }
 
 
 
 
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