main.cpp

00001 #include "mbed.h"
00002 #include "HTTPClient.h"
00003 #include "LM75B.h"
00004 #include "MMA7660.h"
00005 #include "EthernetInterface.h"
00006 
00007 
00008 LM75B sensor(D14,D15);
00009 MMA7660 accel(PTE25 , PTE24);
00010 char buffer[256];
00011 char resp[1024];
00012 char val[4][16];   
00013 int ret = 0;
00014 
00015 Serial pc(USBTX,USBRX);
00016 //Ethernet Interface
00017 EthernetInterface eth;
00018 //HTTP Client for interfacing to web services
00019 HTTPClient http;
00020 #define IP "184.106.153.149" // thingspeak.com IP Address
00021 
00022 //http client init
00023 HTTPMap map;
00024 HTTPText inText(resp, 1024);
00025 //String thingtweetAPIKey = "TTEVLP931ODJ5GMT";
00026 
00027 
00028 int main () {   
00029 //ethernet init
00030     eth.init(); //Use DHCP
00031     ret= eth.connect();
00032 
00033     if (!ret){
00034             pc.printf("\r\nConnected, IP: %s, MASK: %s, GW: %s",
00035             eth.getIPAddress(), eth.getNetworkMask(), eth.getGateway());
00036     } else {
00037         pc.printf("\r\nError eth.connect() - ret = %d", ret);
00038     }
00039     
00040     while(1){
00041         pc.printf("\r\nWriting to thingspeak");
00042         map.put("api_key","xxx");  /* Fill your thingspeak API KEY*/
00043         sprintf(val[0],"%4.1f",sensor.read());
00044         map.put("field1", val[0]);
00045         pc.printf("\r\nPosting Data...");
00046         ret = http.post("https://api.thingspeak.com/update", map, &inText);     //writing data to Thingspeak
00047         if (!ret){
00048             pc.printf("\r\nPOST successfully - read %d characters", strlen(resp));
00049             pc.printf("\r\nResult: %s\n", resp);
00050         }else{
00051             pc.printf("\r\nError Connecting to ethernet port - ret = %d - HTTP return code = %d", ret, http.getHTTPResponseCode());
00052         }
00053     }
00054 }