device1.cpp

00001 #include "mbed.h"
00002 #include "LM75B.h"     /* On sheild Temp sensor */
00003 #include "C12832.h"    /* On sheild LCD */
00004 #include "FXOS8700Q.h"
00005 
00006 PwmOut speaker (D6);
00007 Serial host    (USBTX, USBRX);
00008 LM75B temp     (D14, D15);
00009 C12832 lcd     (D11, D13, D12, D7, D10);
00010 Serial xbee    (D1, D0);
00011 DigitalOut green_led_shield (PTA2);     /**/
00012 DigitalOut red_led_shield (PTC4);       /* Shield LEDs */
00013 DigitalOut blue_led_shield (PTA0);      /**/
00014 I2C i2c(PTE25, PTE24);
00015 FXOS8700QMagnetometer mag(i2c, FXOS8700CQ_SLAVE_ADDR1);
00016 
00017 //Global variables
00018 char input = '0';
00019 char alert = 'A'; // degree
00020 char warn  = 'W'; // temp 
00021 char history = '0';
00022 float x,y,z,tp, degree;
00023 
00024 /* Makes the LED red */
00025 void makeLEDRed (void)
00026 {
00027     green_led_shield = 0;
00028     red_led_shield = 255;
00029     blue_led_shield = 0;
00030 }
00031 
00032 /* Makes the LED green */
00033 void makeLEDGreen (void)
00034 {
00035     green_led_shield = 255;
00036     red_led_shield = 0;
00037     blue_led_shield = 0;
00038 }
00039 
00040 int main()
00041 {
00042     host.baud(38400);
00043     makeLEDGreen();
00044     float anti = abs(degree); 
00045     mag.enable();
00046     for(;;)
00047     {
00048         //Gather the data from the magnetometer 
00049         motion_data_counts_t mag_raw;
00050         mag.getAxis(mag_raw);               
00051         float magx; 
00052         float magy;   
00053         float degree = abs(atan2(magx,magy)*180*7/22);        
00054         mag.getX(magx);
00055         mag.getY(magy);
00056         //Print the data onto the LCD 
00057         lcd.cls();
00058         lcd.locate(1,1);
00059         lcd.printf("Magnetometer Degree: %.3f", degree);
00060         lcd.locate(1,11);
00061         tp = temp.read();
00062         lcd.printf("Temperature: %.3f C", tp);
00063         host.printf("%2.1f%3.0f%c\r\n", tp,degree,input);
00064         xbee.printf("%2.1f%3.0f%c", tp,degree,input);
00065         wait_ms(500);
00066         input = '0';
00067     
00068         
00069         // If the door moves, Send alert 
00070         if (abs(anti-degree) > 160 )
00071         {
00072            makeLEDRed(); 
00073            speaker.period(1/500);
00074            speaker=0.5;
00075          
00076            input = alert;
00077             
00078         }
00079         
00080         // If the temp goes too high or too low, send warning
00081         if (tp < 0 || tp > 45)
00082         {  
00083             makeLEDRed();
00084             speaker.period(1/500);
00085             speaker=0.5;
00086             input = warn;
00087         }
00088         
00089         //Receiving char response 
00090         if(xbee.readable())
00091         {
00092             input = xbee.getc();
00093             switch(input)
00094             {
00095                 case 'y':
00096                 makeLEDGreen();
00097                 speaker=0;
00098                 break;
00099             
00100                 case 's':
00101                 speaker=0;
00102                 break;
00103             }
00104         }
00105     }
00106 }