Diff: main.cpp

Revision:

0:a3d37c44560a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jan 11 05:37:01 2016 +0000
@@ -0,0 +1,88 @@
+/*
+ * This content is released under the (https://opensource.org/licenses/MIT) MIT License.
+ *
+ * Simple code to upload temperature readings to SensorUp SensorThings Playground (http://pg.sensorup.com)
+ * from the XBee moudle.
+ * It works with mbed LPC1768. (https://developer.mbed.org/platforms/mbed-LPC1768/)
+ */
+#include "mbed.h"
+#include "EthernetNetIf.h"
+#include "TCPSocket.h"
+#include "TinyHTTP.h"
+#include "LM75B.h"
+#include "C12832.h"
+
+/*
+* Change the DATASTREAM_ID_TEMP to the id of you SensorThigns Datastream.
+* You can get the Datastream <id> from the SensorUp playground's Observation
+* API Request:/st-playground/proxy/v1.0/Datastreams(<id>)/Observations
+*/
+const int DATASTREAM_ID_TEMP = 155384;
+/*
+* Change the ACCESS_TOKEN to the token of you SensorThigns Datastream
+* You can get the ACCESS_TOKEN from the SensorUp playground's Observation 
+* API Request: St-P-Access-Token: 2c0fd43e-8471-4139-a86b-be5e32d7d732
+*/
+const char *ACCESS_TOKEN = "2c0fd43e-8471-4139-a86b-be5e32d7d732";
+/*
+* Interval(second) to post temperature
+*/
+const int INTERVAL  = 5;
+//Ethernet network interface
+EthernetNetIf eth;
+//LCD
+C12832 lcd(p5, p7, p6, p8, p11);
+Serial xbee1(p9, p10); 
+DigitalOut rst1(p30); 
+
+const char *HOSTNAME = "pg-api.sensorup.com";
+const char *DATASTREAM_URL = "/st-playground/proxy/v1.0/Datastreams(%d)/Observations";
+
+int postToServer(float temp)
+{
+    Host host;
+	char msg[50],uri[100], head[160];
+	// header
+	snprintf(head, sizeof(head), "Content-type: application/json\r\nSt-P-Access-Token: %s\r\n", ACCESS_TOKEN);
+	// uri
+	snprintf(uri, sizeof(uri), DATASTREAM_URL, DATASTREAM_ID_TEMP);
+	// msg
+	snprintf(msg, sizeof(msg), "{\"result\":%.3f\n}", temp);
+
+	host.setName(HOSTNAME);
+	host.setPort(HTTP_PORT);
+	return httpRequest(METHOD_POST, &host, uri, head, msg);
+}
+
+int main () {
+    EthernetErr ethErr;
+    Host host;
+    int r;
+    rst1 = 0; //Set reset pin to 0 
+    wait_ms(1); 
+    rst1 = 1; //Set reset pin to 1 
+    wait_ms(1); 
+    float sensor; 
+    
+	// Start the Ethernet connection
+    ethErr = eth.setup();
+    if(ethErr) {
+        printf("connect error\r\n");
+        return -1;
+    }
+	printf("start\r\n");
+
+    while (1) {
+	    if(xbee1.readable()){ 
+	        lcd.cls();
+            lcd.locate(0,3);
+	        wait(1);  
+	        xbee1.scanf("%f", &sensor); 
+	        if(sensor < 50 && sensor > -20) {
+	            lcd.printf("reading %.3f\n", sensor);
+		        r = postToServer(sensor);
+		        wait(INTERVAL);
+	        }
+      }
+    }
+}
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