main.cpp

00001 #include "mbed.h"
00002 #include "EthernetInterface.h"
00003 #include "HTTPClient.h"
00004 
00005 const char * IP_Addr    = "IP Address";
00006 const char * IP_Subnet  = "IP Subnet";
00007 const char * IP_Gateway = "IP Gateway";
00008 unsigned char MAC_Addr[6] = {0x00,0x08,0xDC,0x12,0x34,0x56};
00009 
00010 Serial pc(USBTX, USBRX);
00011 AnalogIn CDSSensor(PC_15);//Analog A0 input. pgm5537 CDS sensor and 10k resistor.
00012 /******************
00013 VCC     A0      GND
00014  |      |       |
00015  |      |       |
00016  |      |       |
00017  |      |       |
00018  --10k-----CDS---
00019 *******************/
00020 
00021 int main() {
00022     
00023     pc.printf("Start!\r\n\r\n");
00024     
00025     EthernetInterface ethernet;
00026 
00027     mbed_mac_address((char *)MAC_Addr); //Use mbed mac addres
00028     pc.baud(115200);
00029        
00030     #if USE_DHCP
00031     int ret = ethernet.init(MAC_Addr);
00032     #else
00033     int ret = ethernet.init(MAC_Addr,IP_Addr,IP_Subnet,IP_Gateway);
00034     #endif
00035     if (!ret) {
00036         pc.printf("Initialized, MAC: %s\r\n", ethernet.getMACAddress());
00037         ret = ethernet.connect();
00038         if (!ret) {
00039             pc.printf("IP: %s, MASK: %s, GW: %s\r\n",
00040                       ethernet.getIPAddress(), ethernet.getNetworkMask(), ethernet.getGateway());
00041         } else {
00042             pc.printf("Error ethernet.connect() - ret = %d\r\n", ret);
00043             exit(0);
00044         }
00045     } else {
00046         pc.printf("Error ethernet.init() - ret = %d\r\n", ret);
00047         exit(0);
00048     }
00049     
00050     char str[512] = "";
00051     char get_msg[128] = "";
00052     
00053     /*
00054         http://dweet.io/follow/nameYouWant
00055     */
00056     char nameYouWant[] = "nameYouWant";
00057     while(1)
00058     {
00059         sprintf(get_msg,"http://dweet.io/dweet/for/%s?a0=%d",nameYouWant,(int)(CDSSensor.read()*1000));
00060         HTTPClient http;
00061         
00062         pc.printf("Send post message to dweet.io\r\n");
00063         pc.printf("msg : %s\r\n",get_msg);
00064         ret = http.get(get_msg, str, sizeof(str));
00065         if(!ret)
00066         {
00067           pc.printf("\r\nPage fetched successfully - read %d characters\r\n", strlen(str));
00068           pc.printf("Result: %s\r\n", str);
00069         }
00070         else
00071         {
00072           pc.printf("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode());
00073         }
00074         wait(10);
00075     }
00076    
00077 }