jim hamblen
mbed determines its location using a web-based geolocation API that uses the IP address and displays it on the LCD. Timezone is also included. A free API key must be inserted in the URL. See http://mbed.org/users/4180_1/notebook/geolocation-lcd-display/
Dependencies: NetServices TextLCD mbed HTTPClient_ToBeRemoved
Revision 0:14edcbab30cc, committed 2012-04-29
- Comitter:
- 4180_1
- Date:
- Sun Apr 29 01:23:17 2012 +0000
- Commit message:
Changed in this revision
diff -r 000000000000 -r 14edcbab30cc HTTPClient.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HTTPClient.lib Sun Apr 29 01:23:17 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/donatien/code/HTTPClient/#d0be6af2d1db
diff -r 000000000000 -r 14edcbab30cc NetServices.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NetServices.lib Sun Apr 29 01:23:17 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/segundo/code/NetServices/#966a0265edfc
diff -r 000000000000 -r 14edcbab30cc TextLCD.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextLCD.lib Sun Apr 29 01:23:17 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/TextLCD/#44f34c09bd37
diff -r 000000000000 -r 14edcbab30cc main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Apr 29 01:23:17 2012 +0000
@@ -0,0 +1,122 @@
+#include "mbed.h"
+#include "EthernetNetIf.h"
+#include "HTTPClient.h"
+#include "TextLCD.h"
+//Geolocation using IP address - get web page with location data
+// displays location fields on LCD from web page ";....location text...;"
+// see http://mbed.org/users/4180_1/notebook/geolocation-lcd-display/
+TextLCD lcd(p15, p16, p17, p18, p19, p20); // rs, e, d0-d3
+EthernetNetIf eth;
+HTTPClient http;
+
+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++) {
+ if ((buffer[*j+i] == ';')||(buffer[*j+i] == '\0' )) {
+ //semicolon is the string field delimiter
+ string[i]=0;
+ *j=*j+i+1;
+ break;
+ } else string[i]=buffer[*j+i];
+ }
+}
+
+int main() {
+ char result [4]={0};
+ char ip [17]={0};
+ char country_abbr[10]={0};
+ char country[60]={0};
+ char region[40]={0};
+ char city[60]={0};
+ char zipcode[10]={0};
+ char latitude[10]={0};
+ char longitude[10]={0};
+ char timezone[7]={0};
+ char buffer[256]={0};
+ float flatitude=0.0;
+ float flongitude=0.0;
+ float ftimezone=0.0;
+ int j=0;
+
+ //Setup network - get IP address using DHCP
+ lcd.cls();
+ lcd.printf("Net setup\n");
+ EthernetErr ethErr = eth.setup();
+ if (ethErr) {
+ lcd.printf("Error %d", ethErr);
+ return -1;
+ }
+ lcd.printf(" Net OK");
+ wait(.5);
+ lcd.cls();
+ lcd.printf("IP Address\nGeolocation API");
+ HTTPText txt;
+ //iPinfoDB API - get web page with location data
+ //Insert your free key from www.ipinfo.com for the API in the URL below
+ HTTPResult r = http.get("http://api.ipinfodb.com/v3/ip-city/?key=PUT_YOUR_API_KEY_HERE", &txt);
+ if (r==HTTP_OK) {
+ //got web page text data OK
+ strcpy(buffer,txt.gets());
+ wait(1);
+ while (1) {
+ j=0;
+ //parse and display each of the API's location information strings on the LCD
+ parse(buffer, &j, result);
+ lcd.cls();
+ lcd.printf("result: %s\n", result);
+ if (result[0]!='O') { //needs valid key
+ wait(1);
+ lcd.cls();
+ lcd.printf("Get Free API key");
+ lcd.printf("www.iPinfoDB.com");
+ return(-1);
+ }
+ wait(1);
+ j++;
+ parse(buffer, &j, ip);
+ lcd.cls();
+ lcd.printf("IP address: \n %s", ip);
+ wait(2);
+ parse(buffer, &j, country_abbr);
+ lcd.cls();
+ lcd.printf("Country code: \n %s", country_abbr);
+ wait(2);
+ parse(buffer, &j, country);
+ lcd.cls();
+ lcd.printf("Country: \n%s", country);
+ wait(2);
+ parse(buffer, &j, region);
+ lcd.cls();
+ lcd.printf("Region or State:%s", region);
+ wait(2);
+ parse(buffer, &j, city);
+ lcd.cls();
+ lcd.printf("City: \n%s", city);
+ wait(2);
+ parse(buffer, &j, zipcode);
+ lcd.cls();
+ lcd.printf("Zipcode: \n %s", zipcode);
+ wait(2);
+ parse(buffer, &j, latitude);
+ sscanf(latitude,"%f",&flatitude);
+ lcd.cls();
+ lcd.printf("Latitude: \n %f", flatitude);
+ wait(2);
+ parse(buffer, &j, longitude);
+ sscanf(longitude,"%f",&flongitude);
+ lcd.cls();
+ lcd.printf("Longitude: \n %f", flongitude);
+ wait(2);
+ parse(buffer, &j, timezone);
+ sscanf(timezone,"%f",&ftimezone);
+ lcd.cls();
+ lcd.printf("Timezone: \n %f", ftimezone);
+ wait(4);
+ }
+ } else {
+ lcd.cls();
+ lcd.printf("HTTP Error %d", r);
+ return -1;
+ }
+}
diff -r 000000000000 -r 14edcbab30cc mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Apr 29 01:23:17 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/737756e0b479