Ciaran O'Malley / Mbed 2 deprecated CPSLab3B

Cyber Physical Systems Lab 3

Dependencies:   mbed C12832 LM75B

main.cpp@7:8b6bbd2d9889, 2020-12-05 (annotated)

Committer:
ciaranom
Date:
Sat Dec 05 15:46:50 2020 +0000
Revision:
7:8b6bbd2d9889
Parent:
6:e883d7b9c790 
Data logger

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okano 0:ce7a8546502b 1 #include "mbed.h"
chris 2:9e757151de9b 2 #include "LM75B.h"
chris 5:608f2bf4d3f7 3 #include "C12832.h"
ciaranom 7:8b6bbd2d9889 4 #include <string>
ciaranom 7:8b6bbd2d9889 5 #include <iostream>
ciaranom 7:8b6bbd2d9889 6 #include <stdio.h>
ciaranom 7:8b6bbd2d9889 7 #include <cstdlib>
okano 0:ce7a8546502b 8
chris 5:608f2bf4d3f7 9 C12832 lcd(p5, p7, p6, p8, p11);
chris 5:608f2bf4d3f7 10
chris 4:6df97cb10041 11 LM75B sensor(p28,p27);
chris 4:6df97cb10041 12 Serial pc(USBTX,USBRX);
ciaranom 7:8b6bbd2d9889 13 float TempV; //making a float variable for the temperature value
ciaranom 7:8b6bbd2d9889 14 float cycles = 300;
ciaranom 7:8b6bbd2d9889 15
ciaranom 7:8b6bbd2d9889 16 LocalFileSystem local("local"); // Create the local filesystem under the name "local"
okano 0:ce7a8546502b 17
ciaranom 6:e883d7b9c790 18
ciaranom 6:e883d7b9c790 19
ciaranom 7:8b6bbd2d9889 20 int main () //Main function ***************************************************************************************
okano 0:ce7a8546502b 21 {
ciaranom 7:8b6bbd2d9889 22 FILE *fp = fopen("/local/temp3.csv", "a"); //Create the file
ciaranom 7:8b6bbd2d9889 23 fclose (fp); //Close the file
ciaranom 7:8b6bbd2d9889 24
ciaranom 7:8b6bbd2d9889 25 // Variables
ciaranom 6:e883d7b9c790 26 int i =0;
ciaranom 7:8b6bbd2d9889 27 // int j =0;
ciaranom 7:8b6bbd2d9889 28
ciaranom 7:8b6bbd2d9889 29
ciaranom 7:8b6bbd2d9889 30 //while (j<288) //144 5 min cycles in 24 hours *** Main while loop for 3 functions, Writing, reading, displaying
ciaranom 7:8b6bbd2d9889 31
ciaranom 7:8b6bbd2d9889 32 if (sensor.open()) //Try to open the LM75B
ciaranom 6:e883d7b9c790 33 {
ciaranom 7:8b6bbd2d9889 34 printf("Device detected!\n\r");
ciaranom 7:8b6bbd2d9889 35 }
ciaranom 7:8b6bbd2d9889 36 else
ciaranom 6:e883d7b9c790 37 {
ciaranom 6:e883d7b9c790 38 error("Device not detected!\n");
ciaranom 6:e883d7b9c790 39 }//end if sensor open
ciaranom 6:e883d7b9c790 40
ciaranom 7:8b6bbd2d9889 41 fp = fopen("/local/temp3.csv", "a"); //Open the file for writing to
ciaranom 6:e883d7b9c790 42
ciaranom 7:8b6bbd2d9889 43 printf("Measuring temp... \n\r"); //Print confirmation of code running
ciaranom 7:8b6bbd2d9889 44 while (i<cycles)
ciaranom 7:8b6bbd2d9889 45 {
ciaranom 7:8b6bbd2d9889 46 TempV = (float)sensor; //Temperature is the sensor value
ciaranom 7:8b6bbd2d9889 47
ciaranom 7:8b6bbd2d9889 48 fprintf(fp, "%.2f\n", TempV); //print values to file
ciaranom 7:8b6bbd2d9889 49
ciaranom 7:8b6bbd2d9889 50 i = i+1; // counter
ciaranom 7:8b6bbd2d9889 51 wait(1); //Wait 1 seconds to 1*300s = 5 minutes
ciaranom 7:8b6bbd2d9889 52
ciaranom 7:8b6bbd2d9889 53 } //end while loop for writing function
ciaranom 7:8b6bbd2d9889 54 fclose (fp);//close the file
ciaranom 7:8b6bbd2d9889 55
ciaranom 7:8b6bbd2d9889 56 char temps[5]; //Create a string that will contain temerature values from file
chris 4:6df97cb10041 57
ciaranom 7:8b6bbd2d9889 58
ciaranom 7:8b6bbd2d9889 59 fp = fopen("/local/temp3.csv", "r"); //Open rfile for reading
ciaranom 7:8b6bbd2d9889 60
ciaranom 7:8b6bbd2d9889 61 //min max total
ciaranom 7:8b6bbd2d9889 62 double num = 0;
ciaranom 7:8b6bbd2d9889 63 double total = 0;
ciaranom 7:8b6bbd2d9889 64 double maxtemp = -99.99;
ciaranom 7:8b6bbd2d9889 65 double mintemp = 99.99;
ciaranom 7:8b6bbd2d9889 66
ciaranom 7:8b6bbd2d9889 67 while (fscanf(fp, "%s", temps)!= EOF) //scan to end of file
ciaranom 7:8b6bbd2d9889 68 {
ciaranom 7:8b6bbd2d9889 69 num = atof(temps); //string to number --> https://os.mbed.com/questions/7171/How-to-convert-String-to-Float-value/
ciaranom 7:8b6bbd2d9889 70
ciaranom 7:8b6bbd2d9889 71 if(num > maxtemp) //Calculating max number
ciaranom 7:8b6bbd2d9889 72 {
ciaranom 7:8b6bbd2d9889 73 maxtemp = num;
ciaranom 7:8b6bbd2d9889 74 }
ciaranom 7:8b6bbd2d9889 75
ciaranom 7:8b6bbd2d9889 76 if(num < mintemp) //Calculating min number
ciaranom 7:8b6bbd2d9889 77 {
ciaranom 7:8b6bbd2d9889 78 mintemp = num;
ciaranom 7:8b6bbd2d9889 79 }
ciaranom 7:8b6bbd2d9889 80
ciaranom 7:8b6bbd2d9889 81 total = total+ num;
ciaranom 7:8b6bbd2d9889 82
ciaranom 6:e883d7b9c790 83
ciaranom 7:8b6bbd2d9889 84 } //while loop creating sting of values from file ends
ciaranom 7:8b6bbd2d9889 85 double avg = total/(cycles);
ciaranom 7:8b6bbd2d9889 86
ciaranom 7:8b6bbd2d9889 87 printf("Average: %.2f \n\r", avg);
ciaranom 7:8b6bbd2d9889 88 printf("Max: %.2f \n\r", maxtemp);
ciaranom 7:8b6bbd2d9889 89 printf("Min: %.2f \n\r", mintemp);
ciaranom 7:8b6bbd2d9889 90
ciaranom 7:8b6bbd2d9889 91 fclose(fp); // close file
ciaranom 7:8b6bbd2d9889 92
ciaranom 7:8b6bbd2d9889 93 //j=j+1 // Controls daily cycle
okano 0:ce7a8546502b 94
ciaranom 7:8b6bbd2d9889 95 } //end main