my coursework
Dependencies: CheckRTC LPS25H hts221
Fork of ELEC350-extended-referral by
main.cpp
- Committer:
- spanesar
- Date:
- 2017-11-16
- Revision:
- 40:426cd176ce80
- Parent:
- 39:504f5dc30a33
- Child:
- 41:ce3d6fb38d3b
File content as of revision 40:426cd176ce80:
#include "mbed.h" #include "rtos.h" #include "hts221.h" #include "LPS25H.h" #include <sstream> //#include "CheckRTC.h" 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(); void function2(); void function3(); Thread t1; Thread t2; Thread t3; Thread t4; osThreadId idMain; osThreadId id1; void function1() { char buffer [128]; scanf("%127s", buffer); string buffer_str(buffer); /*--------------If 'A' is pressed then all sensor data is diplayed---------------------*/ if(buffer_str=="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 Thread::wait(100); // 100 ms } /*-------------- if 'T' is pressed then the time and date are set to the UTC below------------------------*/ if(buffer_str=="SETTIME") { set_time(1508268288); printf("time and date updated to %s %s\n\r", time, date); myled = 1; Thread::wait(200); myled = 0; Thread::wait(100); } /*-------------if 's' is pressed, 5 sample of data are taken and stored to the RAM every second-------------------------*/ if(buffer_str=="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; Thread::wait(100); wait(1); } if(buffer_str=="READ") { printf("%s\n\r", buf); myled = 1; Thread::wait(200); myled = 0; Thread::wait (100); } } } int main() { pc.baud(9600); //sets baud rate to 9600 idMain = osThreadGetId(); t1.start(function1); id1 = t1.gettid(); time_t seconds = time(NULL); char time [32]; char date [32]; strftime(time, 32, "%H:%M:%S %p", localtime(&seconds)); strftime(date, 32, "%Y/%m/%d %a", localtime(&seconds)); 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); if(buffer_str=="?") { printf("SOFT253 simple Temperature Humidity and Pressure Sensor Monitor\n\r"); printf("Using the X-NUCLEO-IKS01A1 shield and MBED Libraries\n\r"); } } }