Diff: main.cpp

Revision:

19:46fa6a0a9b5c

Parent:

18:a02a73acd3c8

--- a/main.cpp	Mon Jun 29 07:41:31 2015 +0000
+++ b/main.cpp	Fri Apr 07 08:51:49 2017 +0000
@@ -1,132 +1,138 @@
+#include <stdio.h>
+#include <string.h>
 #include "mbed.h"
 #include "EthernetInterface.h"
-#include "Servo.h"
 
-DigitalOut bled(D6);
-DigitalOut gled(D5);
-DigitalOut rled(D4);
+#define CITY        "Seoul"
+#define COUNTRY     "kr"
+#define API_KEY     "YOUR_API" //Fix This
+#define WEB_SERVER  "api.openweathermap.org"
 
-Servo myservo(D15);
+Serial pc(USBTX, USBRX);
+EthernetInterface eth;
+TCPSocketConnection sock;
 
-int main() {
-   
-    int phy_link;
-    printf("Wait a second...\r\n");
-    uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0x00, 0x01, 0x02}; 
+uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0xFF, 0xFF, 0xFF}; //Fix This
+
+// Function Prototypes
+void parsingGetData(void);
+void initEthernet(uint8_t* mac_addr);
+void requestHTTP(void);
+
+int main() 
+{
+    pc.baud(115200);
     
-    EthernetInterface eth;
-    eth.init(mac_addr); //Use DHCP
-    
-    while(1){
-    
-    eth.connect();
+    initEthernet(mac_addr);
     
-    /* phy link */
-     do{
-        phy_link = eth.ethernet_link();
-        printf("...");
-        wait(2);
-     }while(!phy_link);
-     printf("\r\n");
-     
-    printf("IP Address is %s\r\n", eth.getIPAddress());
+    while(1)
+    {
+        requestHTTP();
+        
+        parsingGetData();
     
-    /* TCP socket connect */
-    TCPSocketConnection sock;
-    sock.connect("api.openweathermap.org", 80);
-    
-    /* weather */
-    char http_cmd[] = "GET /data/2.5/weather?q=Seoul,kr HTTP/1.0\n\n";
-    //char http_cmd[] = "GET /data/2.5/weather?q=London,uk HTTP/1.0\n\n";
-    //char http_cmd[] = "GET /data/2.5/weather?q=Berlin,de HTTP/1.0\n\n";
-    sock.send_all(http_cmd, sizeof(http_cmd)-1);
-    
+        sock.close();
+        eth.disconnect();
+        
+        wait(60.0);
+   };
+
+}
+
+/**
+ * @brief   parsing Get Data from server
+ * @detail  Function get data from server at once & parsing it for take needed data
+ * @param   void
+ * @return  void
+ * @throws  return Occurs when the param value exceeds the specified range.
+ */
+void parsingGetData(void)
+{
+    char buffer[1024];
+        
     /* get info */
-    char buffer[420];
     int ret;
     while (true) {
-        ret = sock.receive(buffer, sizeof(buffer)-1);
-        if (ret <= 0)
-            break;
+        ret = sock.receive_all(buffer, sizeof(buffer)-1);
+        if (ret <= 0) break;
         buffer[ret] = '\0';
-        printf("Received %d chars from server: %s\n", ret, buffer);     
+        pc.printf("Received %d chars from server: %s\n", ret, buffer);     
     }
-
-    /* get weather, city, tempurature */
+    
+    /* parsing weather, city, tempurature */
     char *weather;
     char *city;
-    char *tempure;
-    
-    char weather_stu[3];
-    char city_name[6];
-    char tempure_data[6];
+    char *temp;
+    uint8_t i;
     
-   weather = strstr(buffer, "main");
-        printf("%.4s\n", weather + 7);
-        for(int i=0; i<3;i++){
-            weather_stu[i] = weather[i+7];
-            printf("%c",weather_stu[i]);
-       }
-   
-   city = strstr(buffer, "name");
-        printf("%.6s\n", city + 7);
-        for(int k=0; k<6;k++){
-            city_name[k] = city[k+7];
-            printf("%c",city_name[k]);
-        }
- 
-   tempure = strstr(buffer, "temp");
-        printf("%.3s\n", tempure + 6);
-        for(int j=0; j<6;j++){
-            tempure_data[j] = tempure[j+6];
-            printf("%c",tempure_data[j]);
-        }
+    pc.printf("\r\n\r\n======== WeatherForecast ========\r\n");  
+    weather = strstr(buffer, "main");
+    pc.printf("\t State : ");
+    for(i = 7; i < 20; i++)
+    {
+        if(*(weather+i) == '\"') break;
+        pc.printf("%c", *(weather+i));
+    }
+            
+    city = strstr(buffer, "name");
+    pc.printf("\r\n\t City : ");
+    for(i = 7; i < 20; i++)
+    {
+        if(*(city+i) == '\"') break;
+        pc.printf("%c", *(city+i));
+    }
         
-        /*tempurature display */ 
-        float data[2]={0};
-        data[0] = tempure_data[1]-'7';
-        data[1] = tempure_data[2]-'3';
-        
-        myservo = (data[0]*10+data[1])/40;
+    temp = strstr(buffer, "temp");
+    pc.printf("\r\n\t temp(kelvin) : ");
+    for(i = 6; i < 12; i++)
+    {
+        if((*(temp+i) == '\"')||(*(temp+i) == ',')) break;
+        pc.printf("%c", *(temp+i));
+    }
+    pc.printf("\r\n\r\n");
+}
 
-        printf("%f",(data[0]*10+data[1])/40);
-   
-   /* weather display */
-   if(strcmp(weather_stu,"Clo")==0) {
-        rled = 1; 
-        gled = 1; 
-        bled = 1;
-    }else if(strcmp(weather_stu,"Rai")==0) {
-        rled = 0; 
-        gled = 0;
-        bled = 1; 
-    }else if(strcmp(weather_stu,"Cle")==0){
-        rled = 1; 
-        gled = 1;
-        bled = 0; 
-    }else if(strcmp(weather_stu,"Mis")==0){
-        rled = 1;
-        gled = 0;
-        bled = 1;
-    }else if(strcmp(weather_stu,"Haz")==0) {
-        rled = 1; 
-        gled = 1; 
-        bled = 1;
-    }else if(strcmp(weather_stu,"Fog")==0){
-        rled = 1;
-        gled = 0;
-        bled = 1;
-    }else {
-        rled = 0;
-        gled = 0;
-        bled = 0;
-    }
+/**
+ * @brief   Request to server using HTTP.
+ * @detail  Sends param values ​​to the server via HTTP.
+ * @param   void
+ * @return  void
+ * @throws  
+ */
+void requestHTTP(void)
+{
+    char req_buf[256];
+    
+    /* TCP socket connect */   
+    sock.connect(WEB_SERVER, 80);
+    
+    /* Request to WEB Server using HTTP */
+    sprintf(req_buf,"GET /data/2.5/weather?q=%s,%s&appid=%s HTTP/1.1\nHost: %s\nConnection: close\n\n",
+        CITY,COUNTRY, API_KEY, WEB_SERVER);
+    sock.send_all(req_buf, strlen(req_buf));
+}
 
-    sock.close();
-    
-    eth.disconnect();
+/**
+ * @brief   Initialize W5500 (Ethernet chip)
+ * @detail  Function to initialize W5500 chip to use ethernet
+ * @param   void
+ * @return  void
+ * @throws
+ */
+void initEthernet(uint8_t* mac_addr) {
+    int phy_link;
+
+    eth.init(mac_addr); //Use DHCP
     
-    wait(60.0);
-   };
-
+    eth.connect();
+        
+    /* phy link */
+    do{
+       phy_link = eth.ethernet_link();
+       printf(".");
+       wait(2);
+    }while(!phy_link);
+    printf("\r\n");
+         
+    printf("IP Address is %s\r\n", eth.getIPAddress());
 }
\ No newline at end of file