Benjamin Amundson / Mbed 2 deprecated Amundson_hw_7

Amundson OCE 360 homework 7, write and store temperature and time data to an SD card

Dependencies:   SDFileSystem mbed

main.cpp@1:51cb4f1ece04, 2018-11-03 (annotated)

Committer:
bamundson
Date:
Sat Nov 03 19:13:23 2018 +0000
Revision:
1:51cb4f1ece04
Parent:
0:4145a0dc56d8 
Amundson OCE 360 homework 7, write and store temperature and time data to an SD card

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bamundson 0:4145a0dc56d8 1 // Benjamin Amundson OCE Homework 6 10/23/2018
bamundson 0:4145a0dc56d8 2 //
bamundson 0:4145a0dc56d8 3 //last revision 11/1/2018
bamundson 0:4145a0dc56d8 4
bamundson 0:4145a0dc56d8 5 #include "mbed.h"
bamundson 0:4145a0dc56d8 6 #include "SDFileSystem.h"
bamundson 0:4145a0dc56d8 7 #include "temperatureValues.h"
bamundson 0:4145a0dc56d8 8 #include "inputOutput.h"
bamundson 0:4145a0dc56d8 9
bamundson 0:4145a0dc56d8 10 int main (){
bamundson 0:4145a0dc56d8 11 FILE *file;
bamundson 0:4145a0dc56d8 12 float outputVoltage;
bamundson 0:4145a0dc56d8 13 float temperature;
bamundson 0:4145a0dc56d8 14 float initialTemperature = ((SOURCE_VOLTAGE_MV-(SOURCE_VOLTAGE_MV-Ain)));
bamundson 0:4145a0dc56d8 15 float temperatureChange;
bamundson 0:4145a0dc56d8 16 int c;
bamundson 0:4145a0dc56d8 17
bamundson 0:4145a0dc56d8 18
bamundson 0:4145a0dc56d8 19 timer.start();
bamundson 0:4145a0dc56d8 20 file = fopen("/sd/temp_data.txt", "w");
bamundson 0:4145a0dc56d8 21
bamundson 0:4145a0dc56d8 22 while (1) {
bamundson 0:4145a0dc56d8 23
bamundson 0:4145a0dc56d8 24 if(switchValue == 1) {
bamundson 0:4145a0dc56d8 25 file = fopen("/sd/temp_data.txt", "a+");
bamundson 0:4145a0dc56d8 26 if ( file == NULL ) {
bamundson 0:4145a0dc56d8 27 error("ERROR: Could not open file for writing!\n\r");
bamundson 0:4145a0dc56d8 28 return -1;
bamundson 0:4145a0dc56d8 29 }
bamundson 0:4145a0dc56d8 30 pc.printf("\nCollecting data (Do not remove SD Card!) ...\n\r");
bamundson 0:4145a0dc56d8 31
bamundson 0:4145a0dc56d8 32 outputVoltage = (SOURCE_VOLTAGE_MV*Ain);
bamundson 0:4145a0dc56d8 33 temperature = ((SOURCE_VOLTAGE_MV-(SOURCE_VOLTAGE_MV*Ain)) * MV_TO_VOLTAGE_CONV);
bamundson 0:4145a0dc56d8 34 temperatureChange = initialTemperature - temperature;
bamundson 0:4145a0dc56d8 35 fprintf(file, "%2.2fs: %3.2f mV %3.2f deg %3.2f degree change from initial C\n\r", timer.read(), outputVoltage, temperature, temperatureChange);
bamundson 0:4145a0dc56d8 36
bamundson 0:4145a0dc56d8 37 pc.printf("Output Voltage (mV): %3.2f \r\n", outputVoltage);
bamundson 0:4145a0dc56d8 38 pc.printf("Current Temperature degrees C: %3.1f \r\n", temperature);
bamundson 0:4145a0dc56d8 39 pc.printf("Current Time since powered on: %2.2f \r\n", timer.read());
bamundson 0:4145a0dc56d8 40 fclose(file);
bamundson 0:4145a0dc56d8 41 wait(2.0);
bamundson 0:4145a0dc56d8 42
bamundson 0:4145a0dc56d8 43
bamundson 0:4145a0dc56d8 44 }
bamundson 0:4145a0dc56d8 45
bamundson 0:4145a0dc56d8 46 else {
bamundson 0:4145a0dc56d8 47 if ( file == NULL ) {
bamundson 0:4145a0dc56d8 48 error("ERROR: Could not open file for writing!\n\r");
bamundson 0:4145a0dc56d8 49 return -1;
bamundson 0:4145a0dc56d8 50 }
bamundson 0:4145a0dc56d8 51
bamundson 0:4145a0dc56d8 52 fclose(file);
bamundson 0:4145a0dc56d8 53 file = fopen("/sd/temp_data.txt", "r");
bamundson 0:4145a0dc56d8 54 pc.printf("Temperature data:\n\r");
bamundson 0:4145a0dc56d8 55 while(1) {
bamundson 0:4145a0dc56d8 56 c = fgetc(file);
bamundson 0:4145a0dc56d8 57 if ( c == EOF ) {
bamundson 0:4145a0dc56d8 58 break;
bamundson 0:4145a0dc56d8 59 }
bamundson 0:4145a0dc56d8 60 pc.putc(c);
bamundson 0:4145a0dc56d8 61
bamundson 0:4145a0dc56d8 62 }
bamundson 0:4145a0dc56d8 63
bamundson 0:4145a0dc56d8 64 // Close the file and finish
bamundson 0:4145a0dc56d8 65 fclose(file);
bamundson 0:4145a0dc56d8 66 pc.printf("Done! Safe to remove SD card\n\r");
bamundson 0:4145a0dc56d8 67 wait(2);
bamundson 0:4145a0dc56d8 68
bamundson 0:4145a0dc56d8 69
bamundson 0:4145a0dc56d8 70 }
bamundson 0:4145a0dc56d8 71
bamundson 0:4145a0dc56d8 72
bamundson 0:4145a0dc56d8 73
bamundson 0:4145a0dc56d8 74
bamundson 0:4145a0dc56d8 75 }
bamundson 0:4145a0dc56d8 76 }