![](/media/cache/group/WIZnet_logo_001.jpg.50x50_q85.jpg)
Dweet IO example with "Wiznet W5500 Ethernet kit for IoT".
Dependencies: HTTPClient WIZnet_Library mbed WIZnetInterface
1. WIZwiki-W7500
Prerequisite
This example is for sending data to DweetIO.
To implement this function, you need a Platform board, network Interface board.
- WIZwiki-W7500 from WIZnet (Platform board and Ethernet I/F board)
- ETC: PGM5537(CDS sensor) + 10k resistor
Hardware Configuration
WIZwiki-W7500 Pin map
Software
main.cpp
#include "mbed.h" #include "HTTPClient.h" #ifdef TARGET_LPC11U68 #include "WIZnetInterface.h" #endif #if defined(TARGET_WIZWIKI_W7500) #include "EthernetInterface.h" #endif #define USE_DHCP 0 const char * IP_Addr = "IP Address"; const char * IP_Subnet = "IP Subnet"; const char * IP_Gateway = "IP Gateway"; unsigned char MAC_Addr[6] = {0x00,0x08,0xDC,0x12,0x34,0x56}; Serial pc(USBTX, USBRX); #ifdef TARGET_LPC11U68 SPI spi(P0_9,P0_8,P1_29); WIZnetInterface ethernet(&spi,P0_2,P1_13); AnalogIn CDSSensor(P1_9);//Analog A0 input. pgm5537 CDS sensor and 10k resistor. /****************** VCC A0 GND | | | | | | | | | | | | --10k-----CDS--- *******************/ #endif #if defined(TARGET_WIZWIKI_W7500) EthernetInterface ethernet; Serial pc(USBTX, USBRX); AnalogIn CDSSensor(PC_15);//Analog A0 input. pgm5537 CDS sensor and 10k resistor. #endif int main() { mbed_mac_address((char *)MAC_Addr); //Use mbed mac addres pc.baud(115200); #if USE_DHCP int ret = ethernet.init(MAC_Addr); #else int ret = ethernet.init(MAC_Addr,IP_Addr,IP_Subnet,IP_Gateway); #endif if (!ret) { pc.printf("Initialized, MAC: %s\r\n", ethernet.getMACAddress()); ret = ethernet.connect(); if (!ret) { pc.printf("IP: %s, MASK: %s, GW: %s\r\n", ethernet.getIPAddress(), ethernet.getNetworkMask(), ethernet.getGateway()); } else { pc.printf("Error ethernet.connect() - ret = %d\r\n", ret); exit(0); } } else { pc.printf("Error ethernet.init() - ret = %d\r\n", ret); exit(0); } char str[512] = ""; char get_msg[128]= ""; /* http://dweet.io/follow/nameYouWant */ char nameYouWant[] = "nameYouWant"; while(1) { sprintf(get_msg,"http://dweet.io/dweet/for/%s?a0=%d",nameYouWant,(int)(CDSSensor.read()*1000)); HTTPClient http; pc.printf("Send post message to dweet.io\r\n"); pc.printf("msg : %s\r\n",get_msg); ret = http.get(get_msg, str, sizeof(str)); if(!ret) { pc.printf("\r\nPage fetched successfully - read %d characters\r\n", strlen(str)); pc.printf("Result: %s\r\n", str); } else { pc.printf("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode()); } wait(10); } }
2. W5500 Ethernet Kit
- Platform: LPCXpresso11U68
- Component: W5500 Ethernet kit for IoT.
- ETC: PGM5537 + 10k resistor
now, I can send data to dweet.io & freeboard.io but so simple ;).
thanks to Andr.oid Eric(http://arduino-er.blogspot.kr/2015/04/iot-experience-arduino-uno-ethernet.html)
mbed.bld
- Committer:
- cliff1
- Date:
- 2017-04-12
- Revision:
- 3:61b01b267232
- Parent:
- 0:d372849df255
File content as of revision 3:61b01b267232:
http://mbed.org/users/mbed_official/code/mbed/builds/8ab26030e058