my coursework
Dependencies: CheckRTC LPS25H hts221
Fork of ELEC350-extended-referral1 by
main.cpp
- Committer:
- spanesar
- Date:
- 2017-11-22
- Revision:
- 43:a9682b81632b
- Parent:
- 42:4bf55ab88fbc
- Child:
- 44:ca34a376a17c
File content as of revision 43:a9682b81632b:
#include "mbed.h"
#include "rtos.h"
#include "hts221.h"
#include "LPS25H.h"
#include <sstream>
#define READALL_OFF 1
#define SETTIME_OFF 2
#define SETT_OFF 4
#define READ_OFF 7
#define ALL_OFF 9
DigitalOut myled(LED1);
I2C i2c2(I2C_SDA, I2C_SCL);
Serial pc(USBTX, USBRX);
float tempCelsius = 25.50;
float humi = 55;
int humiMax = 100;
char buffer_str=0;
uint32_t seconds = 0, minutes=0, hours=0;
Ticker t;
volatile static unsigned short sample16 = 0;
void doSample1Hz();
int count = 0;
char *buf;
size_t sz;
typedef struct {
float temp;
float press;
float humid;
} measurement;
measurement buffer [120];
LPS25H barometer(i2c2, LPS25H_V_CHIP_ADDR);
HTS221 humidity(I2C_SDA, I2C_SCL);
void function1();
Thread t1;
osThreadId idMain;
osThreadId id1;
osThreadId id2;
osThreadId id3;
osThreadId id4;
void function1()
{//begin function
while (true) {//begin while true
char buffer [128];
scanf("%127s", buffer);
string buffer_str(buffer);
char date [32];
strftime(date, 32, "%Y/%m/%d %a", localtime(&seconds));
char time [32];
strftime(time, 32, "%H:%M:%S %p", localtime(&seconds));
if(buffer_str=="READALL") {//begin if buffer readall
humidity.ReadTempHumi(&tempCelsius, &humi); // reads temperature and humity levels
barometer.get(); // gets barometer readings
// displays all the variables of time, date, temperature, humidity and all the barometric readings to the serial
printf("%s, %s, %4.2fC , %3.1f%%, %6.1f, %4.1f\n\r", time, date, tempCelsius, humi, barometer.pressure(), barometer.temperature());
myled = 1; // LED is ON
Thread::wait(200); // 200 ms NB 'Thread::wait(int d);' !!! d is in milliseconds!
myled = 0; // LED is OFF
t1.signal_set(READALL_OFF);
}//end if buffer readall
Thread::wait(200);
Thread::signal_wait(READALL_OFF);
scanf("%127s", buffer);
strftime(date, 32, "%Y/%m/%d %a", localtime(&seconds));
strftime(time, 32, "%H:%M:%S %p", localtime(&seconds));
if(buffer_str=="SETTIME") {// begin if buffer settime
set_time(1508268288);
printf("time and date updated to %s %s\n\r", time, date);
myled = 1;
Thread::wait(200);
myled = 0;
t1.signal_set(SETTIME_OFF);
}//end if buffer settime
Thread::wait(200);
Thread::signal_wait(SETTIME_OFF);
scanf("%127s", buffer);
strftime(date, 32, "%Y/%m/%d %a", localtime(&seconds));
strftime(time, 32, "%H:%M:%S %p", localtime(&seconds));
if(buffer_str=="SETT") // begin if buffer sett
for (count = 0; count < 5; count++) {
sz = snprintf(NULL, 0,"%s, %s, %4.2fC , %3.1f%%, %6.1f, %4.1f\n\r", time, date, tempCelsius, humi, barometer.pressure(), barometer.temperature());
buf = (char *)malloc(sz + 1);
snprintf(buf, sz + 1, "%s, %s, %4.2fC , %3.1f%%, %6.1f, %4.1f\n\r", time, date, tempCelsius, humi, barometer.pressure(), barometer.temperature());
printf("%s\n\r",buf);
printf("written to memory\n\r");
myled = 1;
Thread::wait(200);
myled = 0;
t1.signal_set(SETT_OFF);
} //end if buffer sett
Thread::wait(200);
Thread::signal_wait(SETT_OFF);
scanf("%127s", buffer);
if(buffer_str=="READ") { //begin if buffer read
printf("%s\n\r", buf);
myled = 1;
Thread::wait(200);
myled = 0;
osSignalSet(idMain, ALL_OFF);
}//end if buffer read
Thread::wait(200);
}//end while true
}//end function
int main()
{
pc.baud(9600); //sets baud rate to 9600
time_t seconds = time(NULL);
idMain = osThreadGetId();
t1.start(function1);
id1 = t1.gettid();
humidity.init();
humidity.calib();
printf("Type SETTIME to set time and date [enter] \n\r");
printf("Type SETT to start sampling [ENTER]\n\r");
printf("Type DELETEALL to delete sensor data [enter]\n\r");
printf("Type READALL [enter]\n\r");
printf("Type READ to read sensor data in memory [ENTER]\n\r");
while(1) {
char buffer [128];
scanf("%127s", buffer);
string buffer_str(buffer);
osSignalWait(ALL_OFF,osWaitForever);
}
}
