main.cpp

00001 #include <string.h>
00002 #include "mbed.h"
00003 #include "easy-connect.h"
00004 #include "TCPSocket.h"
00005 #include "DHT.h"
00006 
00007 DHT dht22(A0,DHT22);
00008 
00009 #define SERVER_IP "192.168.0.8"
00010 #define SERVER_PORT 50000
00011 
00012 Serial pc(USBTX, USBRX);
00013 
00014 
00015 
00016 int main(){
00017     int error = 0;
00018     pc.baud(115200);
00019     pc.printf("\r\nConnecting...\r\n");
00020     NetworkInterface * network = easy_connect(true);
00021     
00022     // couldn't find network.
00023     if(!network)
00024     {
00025         pc.printf("Error: Cannot connect to the network\r\n");
00026        
00027     }
00028     //success 
00029     pc.printf("Success\r\n\r\n");
00030     pc.printf("MAC: %s\r\n", network->get_mac_address());
00031     pc.printf("IP: %s\r\n", network->get_ip_address());
00032     pc.printf("Netmask: %s\r\n", network->get_netmask());
00033     pc.printf("Gateway: %s\r\n", network->get_gateway());
00034     pc.printf("RSSI: %d\r\n\r\n", wifi.get_rssi());
00035     
00036     TCPSocket socket;
00037     socket.open(network);
00038     socket.connect(SERVER_IP, SERVER_PORT);
00039 
00040     float cel = 0, humid = 0;
00041     int send_message, receive_message;
00042     while(1){
00043         char rbuffer[64] ={}; 
00044         pc.printf("Sending request to %s : %d ...\r\n", SERVER_IP, SERVER_PORT);
00045         // artik to nucleo
00046         receive_message = socket.recv(rbuffer, sizeof rbuffer);
00047         pc.printf("%s\r\n", rbuffer);
00048         if(!strcmp(rbuffer,"GET /DHT22\r\n"))
00049             {
00050             char sbuffer[64]={};
00051             send_message = socket.send("OKAY\r", sizeof("OKAY\r"));
00052             //
00053             error = dht22.readData();
00054             if (error == 0) {
00055                 cel   = dht22.ReadTemperature(CELCIUS);
00056                 humid   = dht22.ReadHumidity();
00057             }
00058             else {
00059                 printf("ERROR :  %d\r\n", error);
00060             }
00061             sprintf(sbuffer, "TEMP = %.2f humid = %.2f!\r", cel, humid);
00062             send_message = socket.send(sbuffer, sizeof(sbuffer));
00063             pc.printf(sbuffer);
00064         }
00065         else{
00066             pc.printf("Unknown request\r");
00067             send_message = socket.send("Unknown request\r", sizeof("Unknown request\r"));
00068         }
00069     }
00070 }