main.cpp

00001 #include "mbed.h"
00002 #include "rtos.h"
00003 #include "hts221.h"
00004 #include "LPS25H.h"
00005 #include <sstream>
00006 #define READALL_OFF 1
00007 #define SETTIME_OFF 2
00008 #define SETT_OFF    4
00009 #define READ_OFF    7   
00010 #define ALL_OFF     9  
00011 
00012 
00013 
00014 DigitalOut myled(LED1);
00015 I2C i2c2(I2C_SDA, I2C_SCL);
00016 Serial pc(USBTX, USBRX);
00017 float tempCelsius = 25.50;
00018 float humi = 55;
00019 int humiMax = 100;
00020 char buffer_str=0;
00021 uint32_t seconds = 0, minutes=0, hours=0;
00022 Ticker t;
00023 volatile static unsigned short sample16 = 0;
00024 void doSample1Hz();
00025 int count = 0;
00026 char *buf;
00027 size_t sz;
00028 typedef struct {
00029     float temp;
00030     float press;
00031     float humid;
00032 } measurement;
00033 measurement buffer [120];
00034 
00035 LPS25H barometer(i2c2, LPS25H_V_CHIP_ADDR);
00036 HTS221 humidity(I2C_SDA, I2C_SCL);
00037 
00038 void function1();
00039 void function2();
00040 void function3();
00041 void function4();
00042 
00043 Thread t1;
00044 Thread t2;
00045 Thread t3;
00046 Thread t4;
00047 Thread t5;
00048 
00049 osThreadId idMain;
00050 osThreadId id1;
00051 osThreadId id2;
00052 osThreadId id3;
00053 osThreadId id4;
00054 
00055    
00056 
00057 void function1()
00058 {
00059     while (true){
00060     char buffer [128];
00061     scanf("%127s", buffer);
00062     string buffer_str(buffer);
00063     char date [32];
00064     strftime(date, 32, "%Y/%m/%d %a", localtime(&seconds));
00065       char time [32];
00066     strftime(time, 32, "%H:%M:%S %p", localtime(&seconds));
00067     
00068     if(buffer_str=="READALL") {
00069         humidity.ReadTempHumi(&tempCelsius, &humi); // reads temperature and humity levels
00070         barometer.get(); // gets barometer readings
00071         // displays all the variables of time, date, temperature, humidity and all the barometric readings to the serial
00072         printf("%s, %s, %4.2fC , %3.1f%%, %6.1f, %4.1f\n\r", time, date, tempCelsius, humi, barometer.pressure(), barometer.temperature());
00073         myled = 1; // LED is ON
00074         Thread::wait(200); // 200 ms NB 'Thread::wait(int d);' !!! d is in milliseconds!
00075         myled = 0; // LED is OFF
00076         t2.signal_set(READALL_OFF);
00077         }
00078         Thread::wait(200);
00079         
00080         
00081         }
00082 }
00083 void function2()
00084 {
00085     while (true){
00086     Thread::signal_wait(READALL_OFF);    
00087     char buffer [128];
00088     scanf("%127s", buffer);
00089     string buffer_str(buffer);
00090     char date [32];
00091     strftime(date, 32, "%Y/%m/%d %a", localtime(&seconds));
00092       char time [32];
00093     strftime(time, 32, "%H:%M:%S %p", localtime(&seconds));
00094     if(buffer_str=="SETTIME") {
00095         set_time(1508268288);
00096         printf("time and date updated to %s %s\n\r", time, date);
00097         myled = 1;
00098         
00099         t3.signal_set(SETTIME_OFF);
00100         }
00101         //Thread::wait(200);
00102         //Thread::wait(200);
00103         //myled = 0;
00104         //Thread::wait(100);
00105         }
00106 }
00107 
00108 void function3()
00109 {
00110     while (true){
00111     Thread::signal_wait(SETTIME_OFF);    
00112     char buffer [128];
00113     scanf("%127s", buffer);
00114     string buffer_str(buffer);
00115     char date [32];
00116     strftime(date, 32, "%Y/%m/%d %a", localtime(&seconds));
00117       char time [32];
00118     strftime(time, 32, "%H:%M:%S %p", localtime(&seconds));
00119     if(buffer_str=="SETT") {
00120         for (count = 0; count < 5; count++) {
00121             sz = snprintf(NULL, 0,"%s, %s, %4.2fC , %3.1f%%, %6.1f, %4.1f\n\r", time, date, tempCelsius, humi, barometer.pressure(), barometer.temperature());
00122             buf = (char *)malloc(sz + 1);
00123             snprintf(buf, sz + 1, "%s, %s, %4.2fC , %3.1f%%, %6.1f, %4.1f\n\r", time, date, tempCelsius, humi, barometer.pressure(), barometer.temperature());
00124             printf("%s\n\r",buf);
00125             printf("written to memory\n\r");
00126             myled = 1;
00127             t4.signal_set(SETT_OFF);
00128             }
00129             //Thread::wait(200);
00130             //myled = 0;
00131             //Thread::wait(100);
00132             //wait(1);
00133             }
00134             }
00135 }
00136 void function4()
00137 {
00138         while (true){
00139     Thread::signal_wait(SETT_OFF);    
00140     char buffer [128];
00141     scanf("%127s", buffer);
00142     string buffer_str(buffer);
00143     char date [32];
00144     strftime(date, 32, "%Y/%m/%d %a", localtime(&seconds));
00145         if(buffer_str=="READ") {
00146             printf("%s\n\r", buf);
00147             myled = 1;
00148             osSignalSet(idMain, ALL_OFF);
00149             }
00150             //Thread::wait(200);
00151             //myled = 0;
00152             //Thread::wait (100);
00153         }
00154     }
00155 
00156 int main()
00157 {
00158     pc.baud(9600); //sets baud rate to 9600
00159     idMain = osThreadGetId();
00160     t1.start(function1);
00161     t2.start(function2);
00162     t3.start(function3);
00163     t4.start(function4);
00164     id1 = t1.gettid();
00165     id2 = t2.gettid();
00166     id3 = t3.gettid();
00167     id4 = t4.gettid();
00168     time_t seconds = time(NULL);
00169   
00170     humidity.init();
00171     humidity.calib();
00172     printf("Type SETTIME to set time and date [enter] \n\r");
00173     printf("Type SETT to start sampling [ENTER]\n\r");
00174     printf("Type DELETEALL to delete sensor data [enter]\n\r");
00175     printf("Type READALL [enter]\n\r");
00176     printf("Type READ to read sensor data in memory [ENTER]\n\r");
00177 
00178 
00179 
00180 
00181 
00182     while(1) {
00183         char buffer [128];
00184         scanf("%127s", buffer);
00185         string buffer_str(buffer);
00186         osSignalWait(ALL_OFF,osWaitForever);
00187 
00188 
00189         if(buffer_str=="?") {
00190             printf("SOFT253 simple Temperature Humidity and Pressure Sensor Monitor\n\r");
00191             printf("Using the X-NUCLEO-IKS01A1 shield and MBED Libraries\n\r");
00192         }
00193         
00194 
00195     }
00196 
00197 
00198 }