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Dependencies: Adafruit_GFX HTTPClient NTPClient WizFi310Interface_Legacy mbed
Prerequisite
This example shows that Wizwiki-W7500 and WizFi310 gets current geolocation/time information.
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)
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
Connect to Wi-Fi
returnCode = wizfi310.connect(SECURE, SSID, PASS);
Get and Parse a geolocation information
HTTPResult r = httpClient.get("http://ip-api.com/csv",httpGetData,128); //GET GEOLOCATION DATA (CSV)
if (r==HTTP_OK) { //IF THE DATA WAS RECIEVED
j=0;
//parse and display each of the API's location information strings on the LCD
parse(httpGetData, &j, success);
parse(httpGetData,&j,countryFull);
parse(httpGetData,&j,countryAbrv);
parse(httpGetData,&j,stateAbrv);
parse(httpGetData,&j,stateFull);
parse(httpGetData,&j,city);
parse(httpGetData,&j,zip);
parse(httpGetData,&j,latitude);
parse(httpGetData,&j,longitude);
parse(httpGetData,&j,timeZone);
printf("HTTP Data Received\r\n");
}
Set time
ntpClient.setTime(domainName,123,0x00005000);
Revision 0:0b8f5c3e549f, committed 2017-04-19
- Comitter:
- stkim92
- Date:
- Wed Apr 19 08:15:13 2017 +0000
- Commit message:
- WizFi310 Geolocation_NTP library 2.0 version
Changed in this revision
diff -r 000000000000 -r 0b8f5c3e549f Adafruit_GFX.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adafruit_GFX.lib Wed Apr 19 08:15:13 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/kaizen/code/Adafruit_GFX/#3112550cc6a3
diff -r 000000000000 -r 0b8f5c3e549f HTTPClient.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HTTPClient.lib Wed Apr 19 08:15:13 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/donatien/code/HTTPClient/#277279a1891e
diff -r 000000000000 -r 0b8f5c3e549f NTPClient.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NTPClient.lib Wed Apr 19 08:15:13 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/donatien/code/NTPClient/#881559865a93
diff -r 000000000000 -r 0b8f5c3e549f WizFi310Interface_Legacy.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WizFi310Interface_Legacy.lib Wed Apr 19 08:15:13 2017 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/teams/WIZnet/code/WizFi310Interface_Legacy/#774ff1e8b26b
diff -r 000000000000 -r 0b8f5c3e549f main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Apr 19 08:15:13 2017 +0000
@@ -0,0 +1,150 @@
+#include "mbed.h"
+#include "Adafruit_SSD1306.h"
+#include "WizFi310Interface.h"
+#include "NTPClient.h"
+#include "HTTPClient.h"
+
+
+#define SECURE WizFi310::SEC_AUTO
+#define SSID "wizms1"
+#define PASS "maker0701"
+
+
+#if defined(TARGET_WIZwiki_W7500)
+// #define SDA PA_10
+// #define SCL PA_9
+ WizFi310Interface wizfi310(D1, D0, D7, D6, D8, NC, 115200);
+ Serial pc(USBTX,USBRX);
+#endif
+
+
+// an SPI sub-class that provides a constructed default
+//class I2CPreInit : public I2C
+//{
+//public:
+// I2CPreInit(PinName sda, PinName scl) : I2C(sda, scl)
+// {
+// frequency(100000);
+// start();
+// };
+//};
+
+//I2CPreInit gI2C(SDA,SCL);
+//Adafruit_SSD1306_I2c gOled(gI2C,NC,0x78,64,128);
+NTPClient ntpClient;
+HTTPClient httpClient;
+void parse(char buffer[], int *j, char *string); //FUNCTION TO PARSE HTTP GET DATA
+char httpGetData[1024]; //BUFFER TO HOLD DATA FROM HTTP GET REQUEST
+
+
+int main()
+{
+ time_t ctTime; //system time structure
+ char success[10]={0}; //success first
+ char countryFull[20]={0}; //Full Country Name
+ char countryAbrv[5]={0}; //Abbreviated Country Name or country Code
+ char stateAbrv[5]={0}; //Abbreviated State or region code
+ char stateFull[15]={0}; //Full State Name
+ char city[15]={0}; //City Name
+ char zip[6]={0}; //ZIP CODE
+ char latitude[10]={0}; //latitude
+ char longitude[10]={0}; //longitude
+ char timeZone[30]={0}; //timeZone
+ int j=0, returnCode;
+
+ pc.baud(115200);
+// gOled.begin();
+// gOled.clearDisplay();
+
+ wizfi310.init();
+ returnCode = wizfi310.connect(SECURE, SSID, PASS);
+
+ if ( returnCode == 0 )
+ {
+ printf(" - WiFi Ready\r\n");
+ printf("IP Address is %s\r\n", wizfi310.getIPAddress());
+ }
+ else
+ {
+ printf(" - Could not initialize WiFi - ending\r\n");
+ return 0;
+ }
+
+ //HANDLES THE HTTP GET REQUEST THE WAY THE FUNCTION IS CALLED HERE IS THE FOLLOWING
+ // get(DOMAIN_NAME,BUFFER,TIMEOUT_VAL)
+ //DOMAIN_NAME= domain name that get request is sent to
+ //BUFFER= buffer to store data returned from the server
+ //TIMEOUT_VAL= Time before the request times out
+ HTTPResult r = httpClient.get("http://ip-api.com/csv",httpGetData,128); //GET GEOLOCATION DATA (CSV)
+
+ if (r==HTTP_OK) { //IF THE DATA WAS RECIEVED
+ j=0;
+ //parse and display each of the API's location information strings on the LCD
+ parse(httpGetData, &j, success);
+ parse(httpGetData,&j,countryFull);
+ parse(httpGetData,&j,countryAbrv);
+ parse(httpGetData,&j,stateAbrv);
+ parse(httpGetData,&j,stateFull);
+ parse(httpGetData,&j,city);
+ parse(httpGetData,&j,zip);
+ parse(httpGetData,&j,latitude);
+ parse(httpGetData,&j,longitude);
+ parse(httpGetData,&j,timeZone);
+// gOled.printf("HTTP Data Received\r\n");
+// gOled.display();
+ printf("HTTP Data Received\r\n");
+ }
+ else { //HTTP GET REQUEST ERRORED
+// gOled.printf("HTTP Error %d\r\n", r);
+// gOled.display();
+ printf("HTTP Error %d\r\n", r);
+ return -1;
+ }
+ printf("Reading Time...\r\n");
+ char* domainName="kr.pool.ntp.org"; //SET TO DOMAIN NAME OF SERVER GETTING TIME FROM
+ //GETS THE TIME FROM THE SERVER
+ //setTime(DOMAIN_NAME,PORT_NUMBER,TIME_OUT)
+ //DOMAIN_NAME= domain name
+ //PORT NUMBER=port number (123 for NTP)
+ //TIME_OUT= timeout value for request
+ ntpClient.setTime(domainName,123,0x00005000);
+ printf("Time Set\r\n");
+ //Delay for human time to read LCD display
+ wait(3.0);
+
+ char buffer[80]; //BUFFER TO HOLD FORMATTED TIME DATA
+// gOled.printf("%s, %s %s, %s\r\n",city,stateAbrv,zip,countryAbrv); //PRINT CITY STATE AND ZIP INFORMATION AND COUNTRY
+// gOled.printf("LAT:%s\r\nLONG:%s\r\n",latitude,longitude); //PRINT LATITUDE AND LONGITUDE
+// gOled.printf("Timezone:%s\r\n",timeZone); //PRINT TIMEZONE
+
+
+ wizfi310.disconnect(); //DISCONNECT FROM THE NETWORK
+ while (1) {
+ //ctTime = time(NULL)-(3600*4); //TIME with offset for eastern time US
+ ctTime = time(NULL)+(3600*9); //TIME with offset for eastern time KR
+ //FORMAT TIME FOR DISPLAY AND STORE FORMATTED RESULT IN BUFFER
+ strftime(buffer,80,"%a %b %d\r\n%T %p %z\r\n %Z\r\n",localtime(&ctTime));
+// gOled.printf("Univ Time Clock\r\n%s\r\n", buffer);
+// gOled.display();
+// gOled.setTextCursor(0,40);
+ printf("%s, %s %s, %s\r\n",city,stateAbrv,zip,countryAbrv); //PRINT CITY STATE AND ZIP INFORMATION AND COUNTRY
+ printf("LAT:%s\r\nLONG:%s\r\n",latitude,longitude); //PRINT LATITUDE AND LONGITUDE
+ printf("Timezone:%s\r\n",timeZone); //PRINT TIMEZONE
+ printf("Univ Time Clock\r\n%s\r\n", buffer);
+ wait(1);
+ }
+}
+
+//SET FOR CSV FORMAT: NEEDS TO BE EDITED IF DIFFERENT FORMAT
+void parse(char buffer[], int *j, char *string) {
+//extracts next location string data item from buffer
+ int i=0;
+ for (i=0; i<=strlen(buffer); i++) { //TOTAL SIZE OF RETURNED DATA
+ if ((buffer[*j+i] == ',')||(buffer[*j+i] == '\0' )) { //IF comma or end of string
+ //comma is the string field delimiter
+ string[i]=0; //SETS END OF SRTRING TO 0
+ *j=*j+i+1; //UPDATES to 1 after comma seperated value
+ break;
+ } else string[i]=buffer[*j+i]; //Keep adding to the string
+ }
+}
diff -r 000000000000 -r 0b8f5c3e549f mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Apr 19 08:15:13 2017 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/mbed_official/code/mbed/builds/97feb9bacc10 \ No newline at end of file