main.cpp

00001 #include "mbed.h"
00002 #include "TextLCD.h"
00003 
00004 AnalogIn sm1(p18);
00005 DigitalOut relay(p30);
00006 
00007 Serial GPRS(p9,p10);
00008 Serial pc(USBTX, USBRX); // tx, rx
00009 
00010 TextLCD lcd(p26, p25, p24, p23, p22, p21); // rs, e, d4, d5, d6, d7
00011 
00012 LocalFileSystem local("local");
00013 
00014 char  z=0x1A,e=0x22,c=0x0d; // ASCII equivalent of 0X22 is "(Double invited coma)
00015 char num[]="9535811293";    // Mobile phone number to which emergancy information has to be delivered
00016 
00017 int main() 
00018 {
00019 float a,m;
00020 int b=100,time=0;
00021 
00022       while(1)
00023       {
00024         GPRS.baud(9600);
00025         GPRS.printf("AT+CMGF=1\r\n");
00026         q=m;    //Storing the sensor value in a variable 
00027         
00028         //Sensor read and Callibrate
00029         a=sm1.read();
00030         m=(0.057*(a*1024))+25.072;
00031         lcd.cls();
00032         lcd.printf("Raw SM1=%0.3f",a); 
00033         wait(5);
00034         
00035         //Local storage (On board flash memory of 2MB) 
00036         FILE *fp=fopen("/local/KAEMS.csv","a");
00037         fprintf(fp,"%d,%0.3f\n",time,m);
00038         fclose(fp);
00039         lcd.cls();
00040         lcd.printf("File updated");
00041         wait(5);
00042         
00043         //Display
00044         lcd.cls();
00045         lcd.locate(0,0);
00046         lcd.printf("SM1=%0.3f",m);  
00047         wait(5);
00048   
00049         //Realy control
00050         if(m>50)
00051         relay=0;
00052         else
00053         relay=1;
00054         wait(2); 
00055         lcd.cls();
00056         lcd.locate(0,0);
00057         lcd.printf("Relay Function...");
00058                    
00059         //GPRS commands
00060         lcd.cls();
00061         lcd.locate(0,0);
00062         lcd.printf("Updating BMSEMS...");
00063         wait(3);
00064         GPRS.printf("AT+SAPBR=0,1\r\n");
00065         wait(3);
00066         GPRS.printf("AT+SAPBR=3,1,%cCONTYPE%c,%cGPRS%c\r\n",e,e,e,e);
00067         wait(3);
00068         GPRS.printf("AT+SAPBR=3,1,%cAPN%c,%cwww%c\r\n",e,e,e,e);
00069         wait(3);
00070         GPRS.printf("AT+SAPBR=1,1\r\n");
00071         wait(5);
00072         GPRS.printf("AT+HTTPINIT\r\n");
00073         wait(2);
00074         GPRS.printf("AT+HTTPPARA=%cCID%c,1\r\n",e,e);
00075         wait(2);
00076         GPRS.printf("AT+HTTPPARA=%cURL%c,%chttp://bmsems.org/update.php?u=3&t=23&h=34&s1=%f&s2=24&s3=25&s4=26&ph=5&b=%d%c\r\n",e,e,e,m,b--,e);
00077         wait(2);
00078         GPRS.printf("AT+HTTPDATA=1000,5000\r\n"); 
00079         wait(10);
00080         GPRS.printf("AT+HTTPACTION=1\r\n"); 
00081         wait(5);
00082         GPRS.printf("AT+HTTPTERM\r\n");
00083         wait(5);
00084         
00085         time=time+1;
00086         lcd.cls();
00087         lcd.locate(0,0);
00088         lcd.printf("BMSEMS Updated");
00089         wait(10);
00090     }
00091 }