mbed based IoT Gateway More details http://blog.thiseldo.co.uk/wp-filez/IoTGateway.pdf

Dependencies:   NetServices FatFileSystem csv_parser mbed MQTTClient RF12B DNSResolver SDFileSystem

Revision:
4:d460406ac780
Child:
5:0dbc27a7af55
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Outputs/OutputSenSe.cpp	Tue May 01 21:43:40 2012 +0000
@@ -0,0 +1,110 @@
+/** IoT Gateway Output definition for Sen.Se
+ *
+ * @author Andrew Lindsay
+ *
+ * @section LICENSE
+ *
+ * Copyright (c) 2012 Andrew Lindsay (andrew [at] thiseldo [dot] co [dot] uk)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ * 
+ * @section DESCRIPTION
+ * 
+ * 
+ */
+
+#include "mbed.h"
+#include "OutputSenSe.h"
+
+DigitalOut senseActivityLED(p29, "activityLED");
+
+// Constructor
+OutputSenSe::OutputSenSe() {
+    sendCount = 0;
+}
+
+/** Alternative Constructor
+  */
+OutputSenSe::OutputSenSe( char *internalBufferStart, char *url, char *key ) {
+    sendCount = 0;
+    dataBuffer = internalBufferStart;
+    apiUrl = url;
+    apiKey = key;
+    init();
+}
+
+
+void OutputSenSe::init( ) {
+    dbufPtr = dataBuffer;
+    *dbufPtr = '\0';
+}
+
+/*
+  {
+    "feed_id": <another_feed_id>,
+    "value": <another_event_value>
+  }
+*/
+
+void OutputSenSe::addReading(char *dataFeed, char *dataStream, char *reading ) {
+
+    snprintf(dataBuffer, DATABUF_SIZE, "{ \"feed_id\" : %s, \"value\" : \"%s\" }\n", dataFeed, reading);
+    printf("%s\n",dataBuffer);
+    send();
+}
+
+
+int OutputSenSe::send( void ) {
+    char urlBuf[128];
+    HTTPClient http;
+
+    if ( strlen( dataBuffer ) > 1 ) {
+
+        HTTPText csvContent("application/json");
+        // Get the string for Pachube
+        csvContent.set(std::string(dataBuffer));
+
+        // uri for post includes feed ID and datastream ID
+        snprintf(urlBuf, 128, apiUrl, apiKey );
+        printf("URL: %s\n",urlBuf);
+
+
+        senseActivityLED = 1;
+        // result should be 0 and response should be 200 for successful post
+        printf("Sen.Se Send count %d\n", ++sendCount);
+
+/*        printf("\nHEAP STATS\n");
+        __heapstats((__heapprt)fprintf,stderr);
+        printf("\nHEAP CHECK\n");
+        __heapvalid((__heapprt)fprintf,stderr, 0);
+        printf("\nStackP: %ld\n",__current_sp());
+        printf("---------------\n");
+*/
+        HTTPResult result = http.post(urlBuf, csvContent, NULL);
+        int response = http.getHTTPResponseCode();
+        printf("updateDataStream(%d)\n", response );
+        senseActivityLED = 0;
+    }
+
+    dbufPtr = dataBuffer;
+    *dbufPtr = '\0';
+    
+    return 0;
+}
+