input_functions.cpp

00001 #include "mbed.h"
00002 #include "rtos.h"
00003 #include "sMotor.h"
00004 
00005 
00006 AnalogIn heart_rate2(A0);
00007 AnalogIn adc_temp(A3);
00008 AnalogIn adc_sound(A1);
00009 //AnalogIn hymid(A2);
00010 DigitalOut myled2(D4);
00011 DigitalOut buzzer(D3);
00012 
00013 //AnalogIn Proximity_measure(A2);
00014 void heartrate();
00015 void sound();
00016 void temp();
00017 void smotor();
00018 
00019 void smotor(){
00020  
00021     sMotor motor(D8, D9, D10, D11);   
00022     int step_speed = 1000 ; // set default motor speed
00023     int numstep = 1024 ;
00024     motor.step(numstep/1,0,step_speed);
00025 }
00026 
00027     double h;
00028     double *h_p = (double*)malloc(1*sizeof(double));
00029     int heart_rate = 0;
00030     int *beats_per_min = (int*)malloc(1*sizeof(int));
00031     
00032     //Heartrate monitor
00033  void heartrate(){
00034     int number_of_beats = 0;
00035     float j = 0.0;  
00036     h_p = &h;
00037     beats_per_min = &heart_rate;
00038     while (1){
00039     
00040     buzzer = 0;
00041     
00042     h = heart_rate2.read();    
00043     if(h>=1.0){
00044         number_of_beats = number_of_beats + 1;
00045         myled2 = 1;
00046         buzzer = 1;
00047         j = j + 0.3;
00048         wait(0.3);
00049         } 
00050     else {
00051         myled2 = 0;
00052         j = j +  0.05;
00053         wait(0.05);    
00054         }
00055         //Every 10 sec calculate the heartrate
00056     if(j > 10) {
00057         heart_rate = number_of_beats * 6;
00058         j = 0.0;
00059         number_of_beats = 0;
00060         }
00061     else {
00062             
00063         }
00064             
00065         
00066         
00067     }
00068 }
00069     double t;
00070     double *t_p = (double*)malloc(1*sizeof(double));
00071 
00072 void temp(){
00073     
00074     t_p = &t;
00075     //------------------------------------------------------------------------//
00076         //This section is using the external temperatur sensor "Grove temperatur sensor v1.2
00077         //float resistance;
00078         const int B = 4275;
00079         const int R0 = 100000;
00080         //char temp[10];
00081         double R;
00082         double temp_combined;
00083         double a; 
00084         a = adc_temp.read();
00085         R = 1023.0/a-1.0;
00086         R = R0*R;
00087         t = (a - 0.5)*100;
00088         //t  = 1.0/(log(R/R0)/B+1/298.15)-273.15;
00089         //reads the voltage from the analog temperatur sensor
00090         for( int i = 1; i <= 5; i = i + 1 ) {
00091             a = adc_temp.read();
00092             temp_combined = temp_combined + a;
00093             if(i == 5) {
00094                 temp_combined = temp_combined / 5;
00095                 R = 1023.0/temp_combined-1.0;     
00096                 t  = 1.0/(log(R)/B+1/298.15)-173.15;
00097                 temp_combined = 0;
00098                 i = 1;
00099                 
00100                 wait(1);
00101             } else {
00102                 wait(1);
00103                 }
00104         }
00105         
00106         
00107         
00108         //R = R0*R;
00109         
00110         //Calculate the temperature from the voltage
00111         
00112         //temperature = ((a*1000)-500)/10;
00113         //sprintf(temp, "%f", a);
00114         //resistance=(float)(1023-a)*10000/a; //get the resistance of the sensor;
00115         //temperature=1/(log(resistance/10000)/B+1/298.15)-273.15;//convert to temperature via datasheet&nbsp;;
00116         //delay(100);
00117         
00118     }
00119     
00120     
00121 void sound() {
00122     float b = adc_sound.read();
00123         char temp_sound[10];
00124         float noiselevel;
00125         noiselevel = b;
00126         
00127         if (noiselevel != 0) {
00128 
00129             //do something with noiselevel!!
00130             
00131         }
00132         wait(0.1);
00133     }
00134 
00135 /*void proximity(){
00136     double prox_read;
00137     while(1){
00138         
00139         prox_read = Proximity_measure.read();
00140         
00141         
00142         wait(0.5);
00143         
00144         buzzer.write(0);
00145         wait(3);
00146         }
00147     
00148     }*/
00149