WIZnet / Mbed 2 deprecated TCPClient_HelloWorld_WIZwiki-W7500 Featured

Weather info from OPenweathermap.org with TCPClient on WIZwiki-W7500

Dependencies:   WIZnetInterface mbed

Fork of TCPClient_HelloWorld_WIZwiki-W7500 by Lawrence Lee

Prerequisite

This example is for obtainning and printting data from server(OpenWeatherMap). WIZwiki-W7500 is TCP client mode.

To implement this function, you need a Platform board, network Interface board.

  • WIZwiki-W7500 from WIZnet (Platform board and Ethernet I/F board)

Hardware Configuration

WIZwiki-W7500 Pin map

pin map

Software

Select the city

    char http_cmd0[] = "GET /data/2.5/weather?q=Seoul,kr&appid=";
    char http_cmd1[] = API_key;
    char http_cmd2[] = " HTTP/1.0\n\n";
    
    sock.send_all(http_cmd0, sizeof(http_cmd0)-1);
    sock.send_all(http_cmd1, sizeof(http_cmd1)-1);
    sock.send_all(http_cmd2, sizeof(http_cmd2)-1);

Caution

This example requires an API key that can be obtained by signning up to the openweathmap site. //

Diff: main.cpp

Revision:
2:c4fef61e151d
Parent:
0:d7c890f9ee69
Child:
3:7b25a01a7f62
--- a/main.cpp	Mon Jun 29 00:43:27 2015 +0000
+++ b/main.cpp	Thu Apr 06 11:50:11 2017 +0000
@@ -1,39 +1,49 @@
 #include "mbed.h"
 #include "EthernetInterface.h"
 
+
+#define API_key "" //Insert API key
+Serial uart(USBTX, USBRX);
+
 int main() {
    
     int phy_link;
-    printf("Wait a second...\r\n");
-    uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0x00, 0x01, 0x02}; 
+    uart.baud(115200);
+    uart.printf("Wait a second...\r\n");
+    //uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0x00, 0x01, 0x02}; 
     
     EthernetInterface eth;
-    eth.init(mac_addr); //Use DHCP
+
     eth.connect();
-    
+
      do{
      phy_link = eth.ethernet_link();
-     printf("...");
+     uart.printf("...");
      wait(2);
      }while(!phy_link);
-     printf("\r\n");
+     uart.printf("\r\n");
      
-    printf("IP Address is %s\r\n", eth.getIPAddress());
+    uart.printf("IP Address is %s\r\n", eth.getIPAddress());
     
     TCPSocketConnection sock;
     sock.connect("api.openweathermap.org", 80);
     
 
-    char http_cmd[] = "GET /data/2.5/weather?q=Seoul,kr HTTP/1.0\n\n";
-    sock.send_all(http_cmd, sizeof(http_cmd)-1);
-
+    char http_cmd0[] = "GET /data/2.5/weather?q=Seoul,kr&appid=";
+    char http_cmd1[] = API_key;
+    char http_cmd2[] = " HTTP/1.0\n\n";
+    
+    sock.send_all(http_cmd0, sizeof(http_cmd0)-1);
+    sock.send_all(http_cmd1, sizeof(http_cmd1)-1);
+    sock.send_all(http_cmd2, sizeof(http_cmd2)-1);
+    
     char buffer[400];
     int ret;
     while (true) {
         ret = sock.receive(buffer, sizeof(buffer)-1);
         if (ret <= 0) break;
         buffer[ret] = '\0';
-        printf("Received %d chars from server: %s\n", ret, buffer);     
+        uart.printf("Received %d chars from server: %s\n", ret, buffer);     
     }
 
     sock.close();