Revision 1:ba73ffc5805f, committed 2014-10-31

Comitter:

josmy

Date:

Fri Oct 31 05:27:23 2014 +0000

Parent:

0:6b7345059afe

Commit message:

It consists of 3 serial ports, one for GPS, second for GSM and third for viewing what is going on. GPS latitude, longitude, north-south, east-westis extracted and send as an SMS to the number saved in the program and displayed on LCD.

Changed in this revision

--- a/GPS.lib	Tue Jun 08 14:12:30 2010 +0000
+++ b/GPS.lib	Fri Oct 31 05:27:23 2014 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/simon/code/GPS/#15611c7938a3
+http://developer.mbed.org/users/josmy/code/Bus_Navigation/#5c5177f8c0d8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GPS_HelloWorld.lib	Fri Oct 31 05:27:23 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/simon/code/GPS_HelloWorld/#6b7345059afe

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD.lib	Fri Oct 31 05:27:23 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/simon/code/TextLCD/#308d188a2d3a

--- a/main.cpp	Tue Jun 08 14:12:30 2010 +0000
+++ b/main.cpp	Fri Oct 31 05:27:23 2014 +0000
@@ -1,15 +1,200 @@
 #include "mbed.h"
 #include "GPS.h"
+#include "string.h"
+#include "TextLCD.h"
 
-Serial pc(USBTX, USBRX);
-GPS gps(p9, p10);
+
+TextLCD lcd(PB_3, PB_5, PB_4, PA_8, PC_7, PB_6); // rs, e, d4-d7
+
+//Serial pc(USBTX, USBRX);
+Serial pc(SERIAL_TX, SERIAL_RX);
+GPS gps(PA_9, PA_10);
+DigitalOut myled(LED1);
+Serial GSM(PB_10, PB_11);
+DigitalIn Mybutton(PC_13);
+char Mybuf[100];
+char buff[100];
+
+
+
+//global variables
+char comm[100];
+//char num[15]="+919920355869";
+char num[15]="+919820300951";
+int time1;
+int msg[100];
+int numb[20];
+int log1[20];
+int dm;
+
+
+int read_GSM()
+{
+    int i=0;
+    
+    while(1)
+    { 
+        comm[i]=GSM.getc();
+        if(comm[i]==10 && comm[i-1]==13 && comm[i-2]==75 && comm[i-3]==79)
+        {
+            return i;
+        }
+        pc.putc(comm[i]);
+        i++; 
+    }
+}
+
+void send_sms(char* text)
+{
+
+//    GSM.printf("AT+CMGS=\"+919820300951\"\r\n");
+    GSM.printf("AT+CMGS=\"+919920355869\"\r\n");
+
+//    GSM.printf("AT+CMGS=\"%s\"\r\n",num);
+    wait(1);
+
+    GSM.printf("Latitude:%f,%c,Longitude:%f,%c\r\n", gps.latitude,gps.ns, gps.longitude, gps.ew);
+    
+    wait(1);
+
+    GSM.putc(0x1A);
+    wait(1);
+//    dm=read_GSM();
+    sprintf(buff,"Lat:%f %c",gps.latitude,gps.ns);
+    lcd.locate(0,0);
+    lcd.printf(buff);
+    sprintf(buff,"Log:%f %c",gps.longitude, gps.ew);
+    lcd.locate(0,1);
+    lcd.printf(buff);
+
+    pc.printf("SMS Send");
+}
+
+void GPS_init(){
+    GSM.printf("AT+CGPSPWR=1\r");
+    dm=read_GSM();
+    pc.printf("GPS Power ON\n");
+    GSM.printf("AT+CGPSRST=1\r");
+    dm=read_GSM();
+    pc.printf("GPS Cold Reset\n");
+    GSM.printf("AT+CGPSIPR=9600\r");
+    dm=read_GSM();
+    pc.printf("GPS baud rate set\n");
+}    
 
+void GSM_init()
+{  
+    // check if GSM is fine
+    GSM.printf("AT\r");                     
+    dm=read_GSM();
+    //pc.printf("%s",comm);
+    //if(strcmp("OK",comm)==0)
+    pc.printf("GSM Working fine\n");
+    wait(1);
+    
+    //no echo
+    GSM.printf("ATE0\r");
+    dm=read_GSM();
+    pc.printf("Echo Switched off\n");
+    wait(1);
+    
+    //network reg
+    GSM.printf("AT+CREG?\r");
+    dm=read_GSM();
+    pc.printf("Network Registered\n"); 
+    wait(1);
+    //Service provider
+    pc.printf("\n Network Provider\n"); 
+    GSM.printf("AT+CGMI\r");
+    dm=read_GSM();
+    wait(1);
+ }
+ 
+void sms_init()
+{
+    GSM.printf("AT+CMGF=1\r");
+    dm=read_GSM();
+    pc.printf("GSM SMS set to Text Mode\n");
+    wait(0.5);
+    //delete all previous messages  
+    GSM.printf("AT+CMGDA=\"DEL ALL\"\r");
+    //pc.printf("AT+CMGDA=\"DEL ALL\"\r");
+
+    read_GSM();
+    pc.printf("All previous messages cleared");
+}
+ 
+void retrieve_sms()
+{ 
+    GSM.printf("AT+CMGR=1\r");
+    int i=0;
+    while(1)
+    {
+        comm[i]=GSM.getc();
+        if(comm[i]==10 && comm[i-1]==13 && comm[i-2]==75 && comm[i-3]==79)
+        break;
+        i++;
+    }
+    int len=i; 
+    int j=0;
+    // Get message
+    for(i=len-8;i>0;i--)
+    if(comm[i]==13 && comm[i+1]==10)
+    break;
+    pc.printf("Message retrieved is: ");
+    lcd.locate(0,0);
+    int k=0;
+    for(j=i+2;j<=len-8;j++)
+    { 
+        msg[k]=comm[j];
+        pc.putc(msg[k]);
+        lcd.putc(msg[k]);
+        k++; 
+    }
+    //sprintf(buff,"%d",msg);
+    //lcd.printf(buff);
+       
+    
+    //get Sender number
+    pc.printf("\n Message received from: ");
+    k=0;
+    for(i=24;i<=36;i++)
+    { 
+        num[k]=comm[i];  
+        pc.putc(num[k]);
+        k++;
+    }
+    GSM.printf("AT+CMGDA=\"DEL ALL\"\r");
+/*
+   
+    // Get Time
+    pc.printf("\n Message received at: ");
+    for(j=47;j<=54;j++) 
+    {
+        log1[k]=comm[j];
+        pc.putc(log1[k]);
+        k++;
+    }   
+*/
+}
 int main() {
+    GPS_init();
+    GSM_init();
+    sms_init();
+    
     while(1) {
-        if(gps.sample()) {
-            pc.printf("I'm at %f, %f\n", gps.longitude, gps.latitude);
+        retrieve_sms();
+        
+        myled=!myled;
+        if(gps.sample()){
+            pc.printf("\nLatitude: %f, %c, Longitude: %f, %c\n",  gps.latitude,gps.ns, gps.longitude, gps.ew);
+            if(Mybutton == 0){
+                sprintf(Mybuf,"Latitude:%f, %c, Longitude:%f, %c\r\n", gps.latitude,gps.ns, gps.longitude, gps.ew);
+                send_sms(Mybuf);    
+            }
+            
         } else {
-            pc.printf("Oh Dear! No lock :(\n");
+            pc.printf("No lock!\n");
         }
     }
 }

--- a/mbed.bld	Tue Jun 08 14:12:30 2010 +0000
+++ b/mbed.bld	Fri Oct 31 05:27:23 2014 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/029aa53d7323
+http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1
\ No newline at end of file