main.cpp

00001 #include "mbed.h"
00002 #include <cmath>
00003 #include <stdio.h>   
00004 #include <math.h>
00005 #include <algorithm>
00006 //#include <LinearTemp.h>
00007 #include "mbed.h"
00008 #include "TextLCD.h"
00009 
00010 TextLCD lcd(p19, p20, p21, p22, p23, p24); // rs, e, d4-d7
00011 Serial pc(USBTX, USBRX);
00012 DigitalOut myled1(LED1), myled2(LED2);
00013 AnalogIn pin_1(p16), pin_2(p15), pin_3(p17) ;
00014 AnalogOut pin_18 (p18);
00015 DigitalIn switchinput(p7);
00016 DigitalOut redLed(p5);
00017 DigitalOut alarm (p5);
00018 //LinearTemp mysensor(p15, 0.0050354, -273.15); 
00019  
00020 char program_name[128] = "G3-Waterplay Project";
00021 float roundvalue = 0;
00022 double Temperature = 0;
00023 float Salinity = 0;
00024 
00025 void salinityMeasurement();
00026 void temperatureMeasurement();
00027 void initialization ();
00028 int main()
00029 {
00030     //int number = 0;
00031     temperatureMeasurement();
00032     lcd.printf("None \n");
00033     
00034     while(true){
00035         if (Temperature >= 32){
00036             pin_18 = 0;
00037             redLed = 1;
00038             temperatureMeasurement();
00039             lcd.printf("Temp too high \n");
00040         }
00041         
00042         if(Temperature >= 28 && Temperature < 32 ){
00043             pin_18 = 0;  
00044             myled1 = 0;
00045             redLed = 0;
00046             temperatureMeasurement();
00047             salinityMeasurement();      
00048         }
00049         if (Temperature < 28){
00050             pin_18 = 1;
00051             myled1 = 1;
00052             temperatureMeasurement();
00053             lcd.printf("None \n");
00054         }
00055     }    
00056      
00057      //initialization();    
00058      //while(1){
00059        // wait(2); 
00060         //salinityMeasurement();
00061         //temperatureMeasurement();
00062     //}
00063     
00064     /*
00065     int number = 0;
00066     temperatureMeasurement();
00067     salinityMeasurement();
00068     for (int i = 23 ; i < 35; i++){
00069         while (Temperature < (double)i){
00070             number++;
00071             pin_18 = 1;
00072             myled1 = 1;   
00073             if (number %100 == 0){
00074                 temperatureMeasurement();
00075                 salinityMeasurement();
00076             }      
00077         }
00078         pin_18 = 0;  
00079         myled1 = 0;
00080         redLed = 0;  
00081         
00082         alarm = 1;
00083         wait(0.2);
00084         alarm = 0;
00085         wait(0.5);
00086         alarm = 1;
00087         wait(0.2);
00088         alarm = 0;
00089         
00090         while (switchinput!=1){
00091             wait(1);
00092             temperatureMeasurement();
00093             salinityMeasurement();
00094         }    
00095         
00096         temperatureMeasurement();
00097         salinityMeasurement();
00098     }
00099     */
00100 }
00101     
00102 //salinity function
00103 void salinityMeasurement(){
00104     float f, vin, divider, vout;
00105     
00106     float salt[100];
00107     
00108     for (int i = 0;  i < 100; i++){
00109         f = pin_1.read();
00110         vin = f * 3.3;
00111         divider = (float)5/ (float)3;
00112         vout = vin * divider;
00113     
00114         //measure the salinity
00115         salt[i] = 16.3 * vout; 
00116     }   
00117     
00118     sort(salt, salt + 100);
00119     
00120     pc.printf("vin: %f, vout: %f, salt: %f \n\r", vin, vout, salt[50]);
00121     roundvalue = (float)floor((salt[50]*100.0) + 0.5)/100.0;
00122     lcd.printf("Sal:  %g \n", roundvalue);
00123     Salinity = roundvalue;
00124 }
00125 
00126 //temperature function
00127 void temperatureMeasurement(){
00128     //measure the temperature
00129     double f2, vin, divider, vout, RT, K0, K1, K2, TKelvin;
00130     double Celcius[100];
00131     
00132     for (int i = 0;  i < 100; i++){
00133         f2 = pin_2.read();
00134         vin = f2 * 4.85;
00135         divider = (double)5/ (double)3;
00136         vout = vin * divider;
00137     
00138         RT = (vout * (double)15000) / (4.85 - vout);
00139         K0 = 0.00102119;
00140         K1 = 0.000222468 * (log(RT));
00141         K2 = double (1.33342 * pow (10.0, -7.0)) * pow ((double)log(RT), 3.0);
00142         TKelvin = 1.0 / (K0 + K1 + K2);
00143         Celcius[i] = (TKelvin - 273.15)+5.0;
00144     }
00145     //pc.printf("K0: %f, K1: %f, K2: %f \n\r", K0, K1, K2); 
00146     //pc.printf("vin: %f, vout: %f, temperature: %f \n\r", vin, vout, Celcius);
00147     
00148     sort(Celcius, Celcius + 100);
00149     
00150     pc.printf("vin: %f, vout: %f, temperature: %f \n\r",vin, vout, Celcius[50]);
00151     roundvalue = (float)floor((Celcius[50]*100.0) + 0.5)/100.0;
00152     lcd.printf("Temp: %g \n", roundvalue);
00153     Temperature = roundvalue;
00154     
00155     /*
00156     if (Celcius[50] >= 34){
00157         pin_18 = 0;
00158         redLed = 1;
00159         lcd.printf("The temperature is too high");
00160     }else if(Celcius[50] >= 28 && Celcius[50] < 34 ){
00161         pin_18 = 0;  
00162         myled1 = 0;
00163         redLed = 0;      
00164     }else {
00165         pin_18 = 1;
00166         myled1 = 1;
00167     }
00168     */
00169 }
00170 
00171 void initialization(){
00172 int message=0;
00173     while (message<8){
00174     
00175         if (message==0){
00176             lcd.printf("Check the water tank  \n");
00177         }
00178         if (message==1){
00179             lcd.printf("Check the solution tank  \n");
00180         }
00181         if (message==2){
00182             lcd.printf("Check the water tube  \n");
00183         }
00184         if (message==3){
00185             lcd.printf("Check the salinity tube  \n");
00186         }
00187         if (message==4){
00188             lcd.printf("Check the valves position  \n");
00189         }
00190         if (message==5){
00191             lcd.printf("Check the syrenge  \n");
00192         }
00193         if (message==6){
00194             lcd.printf("Check the sensor position  \n");
00195         }
00196         if (message==7){
00197             lcd.printf("Check the thermostat  \n");
00198         }
00199     
00200         if (switchinput==1){
00201             message++;
00202             wait(2);
00203             lcd.cls();
00204         }
00205     
00206     }
00207     
00208     lcd.printf("System will start in 2 sec \n");
00209     wait(2);
00210     lcd.cls();
00211 }
00212 
00213 
00214 
00215 
00216     
00217