Openweathermap example for WizFi310

Dependencies:   WizFi310Interface_Legacy mbed

Fork of WizFi310_OpenWeatherMap by WIZnet

Prerequisite

This example is for obtainning and printting data from OpenWeatherMap(Server).

WIZwiki-W7500 and WizFi310 Shield act as TCP client mode.

To implement this function, you need a Platform board and Wi-Fi board. Below are what we used.

  • WIZwiki-W7500 from WIZnet (Platform board)
  • WizFi310 from WIZnet (Wi-Fi board)

Hardware Configuration

WIZwiki-W7500 Pin map

pin map

  • D0 is for RXD, D1 is for TXD
  • D6 is for CTS, D7 is for RTS
  • D9 is for RESET

WizFi310 Pin map

pin map

  • J1 is for RXD, J3 is for TXD
  • SW6-1 is connected to D6 for RTS, SW6-2 is connected to D7 for CTS
  • SW5-3 is connected to D9 for RESET

Software

main.cpp

/* NetworkSocketAPI Example Program
 * Copyright (c) 2015 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#include "mbed.h"
#include "WizFi310Interface.h"

#if defined(TARGET_WIZwiki_W7500)
    WizFi310Interface wizfi310(D1, D0, D7, D6, D9, NC, 115200);
    Serial pc(USBTX,USBRX);
#endif

#define SECURE WizFi310::SEC_AUTO
#define SSID "SSID"
#define PASS "PASS"

#define CITY        "Seoul"
#define API_KEY     "API KEY"

int main()
{
    int errConnect;
    char http_cmd[1000] = "";
    char buffer[2048] = "";
    
    pc.baud(115200);
    printf("WizFi310 NetworkSocketAPI TCP Client OpenWeatherMap Example\r\n");
    
    wizfi310.init();
    if( wizfi310.connect(SECURE, SSID, PASS) )    return -1;
    
    const char *ip = wizfi310.getIPAddress();
    const char *mac = wizfi310.getMACAddress();
//    printf("IP address is: %s\r\n", ip ? ip : "No IP");
//    printf("MAC address is: %s\r\n", mac ? mac : "No MAC");
      
    TCPSocketConnection socket;
    socket.set_blocking(1000);   // Set Block Mode.
    errConnect = socket.connect("api.openweathermap.org", 80);    
    
    while (true) {
        if(errConnect!=0) {
            printf("\r\ncould not connect to socket : error = %d\r\n", errConnect);
            errConnect = socket.connect("api.openweathermap.org", 80);
        } else {
            printf("socket connected\r\n");
            break;
        }
    }    
     
    sprintf((char *)http_cmd,"GET /data/2.5/weather?q=%s,uk&appid=%s HTTP/1.0\r\nHost: api.openweathermap.org\r\nConnection: close\r\n\r\n",
    CITY, API_KEY);

    socket.send_all(http_cmd, sizeof(http_cmd));
    
    socket.receive_all(buffer, sizeof(buffer));
    printf("%s",buffer);
 
    socket.close();
    wizfi310.disconnect();
    
    printf("Done\r\n");

}




Caution

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

Committer:
cliff1
Date:
Wed Apr 12 01:12:07 2017 +0000
Revision:
0:dcc1cf05125a
Child:
1:e65e12b4c3cc
First release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cliff1 0:dcc1cf05125a 1 /* NetworkSocketAPI Example Program
cliff1 0:dcc1cf05125a 2 * Copyright (c) 2015 ARM Limited
cliff1 0:dcc1cf05125a 3 *
cliff1 0:dcc1cf05125a 4 * Licensed under the Apache License, Version 2.0 (the "License");
cliff1 0:dcc1cf05125a 5 * you may not use this file except in compliance with the License.
cliff1 0:dcc1cf05125a 6 * You may obtain a copy of the License at
cliff1 0:dcc1cf05125a 7 *
cliff1 0:dcc1cf05125a 8 * http://www.apache.org/licenses/LICENSE-2.0
cliff1 0:dcc1cf05125a 9 *
cliff1 0:dcc1cf05125a 10 * Unless required by applicable law or agreed to in writing, software
cliff1 0:dcc1cf05125a 11 * distributed under the License is distributed on an "AS IS" BASIS,
cliff1 0:dcc1cf05125a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
cliff1 0:dcc1cf05125a 13 * See the License for the specific language governing permissions and
cliff1 0:dcc1cf05125a 14 * limitations under the License.
cliff1 0:dcc1cf05125a 15 */
cliff1 0:dcc1cf05125a 16
cliff1 0:dcc1cf05125a 17 #include "TCPSocket.h"
cliff1 0:dcc1cf05125a 18 #include "mbed.h"
cliff1 0:dcc1cf05125a 19 #include "WizFi310Interface.h"
cliff1 0:dcc1cf05125a 20
cliff1 0:dcc1cf05125a 21 #if defined(TARGET_WIZwiki_W7500)
cliff1 0:dcc1cf05125a 22 WizFi310Interface wifi(D1, D0, D7, D6, D9, NC, 115200);
cliff1 0:dcc1cf05125a 23 Serial pc(USBTX,USBRX);
cliff1 0:dcc1cf05125a 24 #endif
cliff1 0:dcc1cf05125a 25
cliff1 0:dcc1cf05125a 26 #define AP_SSID "SSID"
cliff1 0:dcc1cf05125a 27 #define AP_PASSWORD "PASS"
cliff1 0:dcc1cf05125a 28 #define AP_SECURITY NSAPI_SECURITY_WPA2
cliff1 0:dcc1cf05125a 29
cliff1 0:dcc1cf05125a 30 #define CITY "Seoul"
cliff1 0:dcc1cf05125a 31 #define API_KEY "API KEY"
cliff1 0:dcc1cf05125a 32
cliff1 0:dcc1cf05125a 33 int main()
cliff1 0:dcc1cf05125a 34 {
cliff1 0:dcc1cf05125a 35 int errConnect;
cliff1 0:dcc1cf05125a 36 char http_cmd[1000] = "";
cliff1 0:dcc1cf05125a 37 char buffer[2048] = "";
cliff1 0:dcc1cf05125a 38
cliff1 0:dcc1cf05125a 39 pc.baud(115200);
cliff1 0:dcc1cf05125a 40 printf("WizFi310 NetworkSocketAPI TCP Client OpenWeatherMap Example\r\n");
cliff1 0:dcc1cf05125a 41
cliff1 0:dcc1cf05125a 42 wifi.connect(AP_SSID, AP_PASSWORD, AP_SECURITY);
cliff1 0:dcc1cf05125a 43
cliff1 0:dcc1cf05125a 44 const char *ip = wifi.get_ip_address();
cliff1 0:dcc1cf05125a 45 const char *mac = wifi.get_mac_address();
cliff1 0:dcc1cf05125a 46 printf("IP address is: %s\r\n", ip ? ip : "No IP");
cliff1 0:dcc1cf05125a 47 printf("MAC address is: %s\r\n", mac ? mac : "No MAC");
cliff1 0:dcc1cf05125a 48
cliff1 0:dcc1cf05125a 49 SocketAddress addr(&wifi, "api.openweathermap.org");
cliff1 0:dcc1cf05125a 50 printf("api.openweathermap.org resolved to: %s\r\n", addr.get_ip_address());
cliff1 0:dcc1cf05125a 51
cliff1 0:dcc1cf05125a 52 TCPSocket socket(&wifi);
cliff1 0:dcc1cf05125a 53 socket.set_timeout(1000); //Set Block Mode.
cliff1 0:dcc1cf05125a 54 errConnect = socket.connect("api.openweathermap.org", 80);
cliff1 0:dcc1cf05125a 55 //errConnect = socket.connect("222.98.173.233", 5000);
cliff1 0:dcc1cf05125a 56
cliff1 0:dcc1cf05125a 57 while (true) {
cliff1 0:dcc1cf05125a 58 if(errConnect!=0) {
cliff1 0:dcc1cf05125a 59 printf("\r\ncould not connect to socket : error = %d\r\n", errConnect);
cliff1 0:dcc1cf05125a 60 errConnect = socket.connect("api.openweathermap.org", 80);
cliff1 0:dcc1cf05125a 61 } else {
cliff1 0:dcc1cf05125a 62 printf("socket connected\r\n");
cliff1 0:dcc1cf05125a 63 break;
cliff1 0:dcc1cf05125a 64 }
cliff1 0:dcc1cf05125a 65 }
cliff1 0:dcc1cf05125a 66
cliff1 0:dcc1cf05125a 67 sprintf((char *)http_cmd,"GET /data/2.5/weather?q=%s,uk&appid=%s HTTP/1.0\r\nHost: api.openweathermap.org\r\nConnection: close\r\n\r\n",
cliff1 0:dcc1cf05125a 68 CITY, API_KEY);
cliff1 0:dcc1cf05125a 69
cliff1 0:dcc1cf05125a 70 socket.send(http_cmd, sizeof(http_cmd));
cliff1 0:dcc1cf05125a 71
cliff1 0:dcc1cf05125a 72 socket.recv(buffer, sizeof(buffer));
cliff1 0:dcc1cf05125a 73 printf("%s",buffer);
cliff1 0:dcc1cf05125a 74
cliff1 0:dcc1cf05125a 75 socket.close();
cliff1 0:dcc1cf05125a 76 wifi.disconnect();
cliff1 0:dcc1cf05125a 77
cliff1 0:dcc1cf05125a 78 printf("Done\r\n");
cliff1 0:dcc1cf05125a 79
cliff1 0:dcc1cf05125a 80 }
cliff1 0:dcc1cf05125a 81