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Dependencies: WizFi310Interface_Legacy mbed
Fork of WizFi310_OpenWeatherMap by
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

- D0 is for RXD, D1 is for TXD
- D6 is for CTS, D7 is for RTS
- D9 is for RESET
WizFi310 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. //
