smd.iotkit2.ch / Mbed 2 deprecated HTTP_POST_ThinkSpeak

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Dependencies:   EthernetInterface TMP175 mbed-rtos mbed

Fork of 2-07-04-Uebung by smd.iotkit2.ch

Diff: main.cpp

Revision:
8:2ecceb32e68b
Parent:
7:4972e81b4b17
Child:
11:4822e060bf3d
--- a/main.cpp	Mon Jun 08 12:38:20 2015 +0000
+++ b/main.cpp	Mon Jun 08 13:40:14 2015 +0000
@@ -1,9 +1,10 @@
-/** HTTP POST Beispiel
+/** 7.4 Sensordaten schreiben via HTTP POST
 */
 #include "mbed.h"
 #include "HTTPClient.h"
 #include "HTTPText.h"
 #include "EthernetInterface.h"
+#include "TMP175.h"
 
 EthernetInterface eth;
 // HTTPClient Hilfsklasse
@@ -11,13 +12,36 @@
 // I/O Buffer
 char str[512];
 
+// Sensoren
+AnalogIn poti  ( A0 );
+AnalogIn light ( A1 );
+AnalogIn hall  ( A2 );
+TMP175 temp    ( D14, D15 );
+// Separater Buffer um die Sensorwerte als String abzustellen
+char fa[4] [12];
+
 DigitalOut myled(LED1);
 
+/** Float nach String wandeln
+ * @param pos Position in I/O Buffer
+ * @param value Wert
+ * @return Pointer auf I/O Buffer
+ */
+char* ftoa( int pos, float value )
+{
+    sprintf( fa[pos], "%4.4f", value );
+    return  ( fa[pos] );
+}
+
 int main()
 {
     printf("HTTP Client - POST\n");
     eth.init();
     eth.connect();
+    
+    temp.vSetConfigurationTMP175( SHUTDOWN_MODE_OFF | COMPARATOR_MODE | POLARITY_0 |FAULT_QUEUE_6 | RESOLUTION_12, 0x48 );
+    temp.vSetTemperatureLowTMP175( 0.0 );
+    temp.vSetTemperatureHighTMP175( 60.0 );    
 
     while(1) 
     {
@@ -28,12 +52,13 @@
         
         // MAP (Argument=Wert) 
         HTTPMap map;
-        map.put("DigitalOut", "LED1");
-        map.put("write", "1");
+        map.put( "poti", ftoa( 1, poti.read() ) );
+        map.put( "light", ftoa( 2, light.read() ) );
+        map.put( "hall", ftoa( 3, hall.read() ) );
+        map.put( "temp", ftoa( 4, temp.fReadTemperatureTMP175() ) );
         
-        int ret = http.post("http://httpbin.org/post", map, &inText);
         // lokale Variante mit CGI-Script auf Raspberry Pi. Wenn nicht Funktioniert: raspi2x durch IP-Adresse ersetzen
-        // int ret = http.post("http://raspi2x/cgi-bin/rest", map, &inText);
+        int ret = http.post("http://raspi2x/cgi-bin/rest", map, &inText);
         if ( ! ret ) 
         {
             printf("Executed POST successfully - read %d characters\n", strlen(str));