main.cpp

00001 #include "mbed.h"
00002 #include "TextLCD.h"
00003 
00004 
00005 AnalogIn LM35(p15);
00006 TextLCD lcd (p21,p22,p23,p24,p25,p26);// rs, e, d4-d7
00007 DigitalIn PIR (p19);//
00008 DigitalOut myled (LED1);
00009 DigitalOut myled2 (LED2);
00010 
00011 
00012 
00013 int main()              
00014 {
00015     float tempC;
00016    
00017     while(1)
00018     {
00019         lcd.cls();
00020         lcd.locate(0,0);
00021         lcd.printf("Temperature:");
00022         wait(0.5);//wait for 0.5s for the system, to detect
00023         lcd.cls();
00024         wait(0.5);
00025      if (PIR==1)
00026      {
00027         tempC=LM35.read()*330;
00028         wait(0.2);
00029         lcd.locate(1,1);
00030         lcd.printf("%.2f deg",tempC);
00031         if(tempC>25)
00032         {
00033             myled=1;
00034             myled2=0;
00035         }
00036         else
00037         {
00038             myled2=1;
00039             myled=0;
00040         }
00041         wait(0.01);
00042         lcd.cls();
00043         wait(0.5);               
00044       }
00045       if(PIR==0)
00046       {
00047        lcd.locate(1,1);
00048        lcd.printf("no motion");
00049        wait(0.004);
00050        lcd.cls();
00051        wait(0.004);
00052        }
00053 }
00054 }