HTTP client example using W5500 ethernet kit for IoT. Get weather information of Seoul, South Korea.
Dependencies: HTTPClient WIZnet_Library mbed
Fork of CurrentWeatherData_W5500 by
main.cpp
- Committer:
- kaizen
- Date:
- 2014-09-02
- Revision:
- 0:a0431fb6c6e0
- Child:
- 2:b63f21ff9817
File content as of revision 0:a0431fb6c6e0:
#include "mbed.h" #include "W5500Interface/EthernetInterface.h" #include "HTTPClient.h" int main() { // EthernetInterface eth; // change for W5500 interface. #if defined(TARGET_LPC1114) SPI spi(dp2, dp1, dp6); // mosi, miso, sclk EthernetInterface eth(&spi, dp25, dp26); // spi, cs, reset #elif defined(TARGET_LPC1768) SPI spi(p11, p12, p13); // mosi, miso, sclk EthernetInterface eth(&spi, p14, p15); // spi, cs, reset #elif defined(TARGET_LPC11U68) SPI spi(P0_9, P0_8, P1_29); // mosi, miso, sclk EthernetInterface eth(&spi, P0_2, P1_28);//, nRESET(p9); // reset pin is dummy, don't affect any pin of WIZ550io spi.format(8,0); // 8bit, mode 0 spi.frequency(7000000); // 7MHz wait(1); // 1 second for stable state #elif defined(TARGET_KL25Z) Serial pc(USBTX, USBRX); pc.baud(115200); printf("spi init\r\n"); SPI spi(D11, D12, D13); // mosi, miso, sclk wait(1); // 1 second for stable state EthernetInterface eth(&spi, D10, D9);//scs(D10), nRESET(PTA20) printf("App Start\r\n"); wait(1); // 1 second for stable state #endif eth.init(); //Use DHCP eth.connect(); printf("IP Address is %s\r\n", eth.getIPAddress()); char str[512]; char get_msg[512]= "http://api.openweathermap.org/data/2.5/weather?q=Seoul"; HTTPClient http; printf("Send get Message to openeathermap.org\r\n"); printf("msg : %s\r\n",get_msg); int ret = http.get(get_msg, str, sizeof(str)); if(!ret) { printf("\r\nPage fetched successfully - read %d characters\r\n", strlen(str)); printf("Result: %s\r\n", str); } else { printf("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode()); } }