main.cpp

00001 /* LIBRARIES */
00002 #include "mbed.h" 
00003 #include "C12832.h"
00004 #include "string.h"
00005 /*--------------------*/
00006 
00007 /*OUTPUT AND INPUT CONFIGURATION*/
00008 Serial xbee1(p9, p10); //pin declaration for the xbee module on the board 
00009 Serial cinterion(p13,p14);  //pin declaration for the cinterion module on the board
00010 DigitalOut myled(LED1); //pin declaration for the blinking LED on the board
00011 DigitalOut myled2 (LED2);
00012 DigitalOut myled3 (LED3);
00013 DigitalOut myled4 (LED4);
00014 C12832 lcd(p5, p7, p6, p8, p11); //pin declaration for the LCD screen on the board
00015 /*--------------------------*/
00016 
00017 /*FUNCTION PROTOTYPE*/
00018 float decryption (float sens2, char sens);
00019 /*----------------------*/
00020 
00021 /*VARIABLES DEFINITION*/
00022 char X; //definition of a character
00023 char temp,volt,current,lumi;     //definition of four variables matching the 4 differents type of data that the board receive
00024 float temp2, current2,volt2, lumi2; // which are temperature, voltage, current, and luminosity
00025 char NumTel[] = "07404054906"; //Mobile number to which the values will be sent
00026 char inchar,inchar1,inchar2,inchar3,inchar4,inchar5; // variables used for the SMS 
00027 /*-----------------------------------------*/
00028 
00029 
00030 /*------------*/
00031 /*MAIN PROGRAM*/
00032 /*------------*/
00033 
00034 
00035 void FlushGSM(void) { char char1 = 0; while (cinterion.readable()) { char1 = cinterion.getc(); } return; }  //function that clean out the reception buffer of the SIM card
00036 
00037 
00038 //----CALLBACK FUNCTIONS----//
00039 //This one will interrupt the program when the cinterion will be receiving a SMS// 
00040 void callback2() 
00041  {  
00042   inchar = cinterion.getc(); // I am copying several value to be sure that this is the right command
00043   inchar1 = cinterion.getc();
00044   inchar2 = cinterion.getc();
00045   inchar3 = cinterion.getc();
00046   inchar4 = cinterion.getc();
00047   inchar5 = cinterion.getc();
00048   if ((inchar == 0x0D)&&(inchar1 == 0x0A)&&(inchar2 == '+')&&(inchar3 == 'C')&&(inchar4 == 'M')&& (inchar5 == 'T')) // if the incoming command is "+CMTI", a new SMS has been received
00049       {
00050         myled4=1;
00051         cinterion.printf("AT+CMGD=1"); //AT command to delete the last SMS, to never be out of space
00052         cinterion.putc(0x0D);          //"enter"
00053         wait(1);
00054         FlushGSM();                    //clear the reception buffer
00055         wait(0.5);
00056         cinterion.printf("AT+CMGF=1");   //Text mode activated for the SMS
00057         cinterion.putc(0x0D);           //"enter"
00058         wait(1);
00059         myled2=1;
00060         cinterion.printf("AT+CMGS=%s", NumTel);  //AT command to send a SMS to the mobile number set 
00061         cinterion.putc(0x0D);                    //"enter"
00062         wait(1) ;
00063         cinterion.printf("Temperature: %.2f, Current: %.2f,Voltage: %.2f, Luminosity: %.2f" , temp2, current2, volt2, lumi2); //the results are send by SMS
00064         cinterion.putc(0x1A);              //ASCII code for Ctrl+Z
00065         wait(5);                           //there are a lot of delays, to be sure that the command are sent
00066         myled2=0;
00067         FlushGSM();                       //clear the reception buffer
00068         myled4=0;
00069       
00070       }
00071  }
00072 
00073 
00074 
00075 //This one will interrupt the program when the xbee will be receiving data// 
00076  void callback()    
00077     {   
00078         X =  xbee1.getc(); //the values received are put into the X variable
00079         if (X == 0xEE) //if X equals the start bit
00080             {   myled = 1; 
00081                 temp = xbee1.getc();   //the next value that the xbee receive is the temperature, then the current, the voltage and finally the luminosity
00082                 current = xbee1.getc();
00083                 volt = xbee1.getc();
00084                 lumi = xbee1.getc();
00085                
00086                 temp2 = decryption(temp2, temp);  //decryption of the values received
00087                 current2 = decryption(current2, current);
00088                 volt2 = decryption (volt2, volt) ;
00089                 lumi2 = decryption(lumi2, lumi);
00090             }
00091             
00092         if (X == 0xFF) //if X equals the final bit
00093             { 
00094             myled = 0; //LED is off when the string stops
00095             lcd.cls();
00096             lcd.locate(0,0);
00097             lcd.printf("Temperature: %.2f, Current: %.2f,Voltage: %.2f, Luminosity: %.2f" , temp2, current2, volt2, lumi2); //the board monitor the results on the LCD Screen
00098             xbee1.printf("Temperature : %f , Current : %f , Voltage : %f , Luminosity : %f " , temp2, current2, volt2, lumi2); //the board sends the results to the PC thanks to the xbee
00099             }
00100     } 
00101     
00102  
00103     
00104  float decryption(float sens2, char sens) // decryption function
00105        {
00106          sens >>=2; //shift bit to the right
00107          sens2 = (float)sens/50 ;  //division
00108          return sens2;
00109        }  
00110        
00111   
00112     
00113  //----MAIN FUNCTION----//   
00114  int main() 
00115     {
00116         cinterion.printf("AT+CNMI=1,1,0,0,1"); //configure the cinterion board to be warned when a new SMS is received
00117         cinterion.putc(0x0D);                  // ASCII code for the "enter" key
00118         FlushGSM();                            // clear the reception buffer
00119        
00120     while (1) //Neverending loop
00121           { 
00122           xbee1.attach(&callback); //call of the xbee callback function 
00123           cinterion.attach(&callback2);   //call of the cinterion callback function            
00124           wait(1);
00125           }
00126      }
00127 
00128 
00129 
00130