Diff: main.cpp

Revision:

0:4145a0dc56d8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Nov 03 19:12:06 2018 +0000
@@ -0,0 +1,76 @@
+// Benjamin Amundson OCE Homework 6 10/23/2018
+//
+//last revision 11/1/2018
+
+#include "mbed.h"
+#include "SDFileSystem.h"
+#include "temperatureValues.h"
+#include "inputOutput.h"
+
+int main (){
+    FILE *file;
+    float outputVoltage;
+    float temperature;
+    float initialTemperature = ((SOURCE_VOLTAGE_MV-(SOURCE_VOLTAGE_MV-Ain)));
+    float temperatureChange;
+    int c;
+
+
+    timer.start();
+    file = fopen("/sd/temp_data.txt", "w");
+
+    while (1) {
+
+        if(switchValue == 1) {
+            file = fopen("/sd/temp_data.txt", "a+");
+            if ( file == NULL ) {
+                error("ERROR: Could not open file for writing!\n\r");
+                return -1;
+            }
+            pc.printf("\nCollecting data (Do not remove SD Card!) ...\n\r");
+
+            outputVoltage = (SOURCE_VOLTAGE_MV*Ain);
+            temperature = ((SOURCE_VOLTAGE_MV-(SOURCE_VOLTAGE_MV*Ain)) * MV_TO_VOLTAGE_CONV);
+            temperatureChange = initialTemperature - temperature;
+            fprintf(file, "%2.2fs: %3.2f mV %3.2f deg %3.2f degree change from initial C\n\r", timer.read(), outputVoltage, temperature, temperatureChange);
+
+            pc.printf("Output Voltage (mV): %3.2f \r\n", outputVoltage);
+            pc.printf("Current Temperature degrees C: %3.1f \r\n", temperature);
+            pc.printf("Current Time since powered on: %2.2f \r\n", timer.read());
+            fclose(file);
+            wait(2.0);
+
+
+        }
+
+        else {
+            if ( file == NULL ) {
+                error("ERROR: Could not open file for writing!\n\r");
+                return -1;
+            }
+
+            fclose(file);
+            file = fopen("/sd/temp_data.txt", "r");
+            pc.printf("Temperature data:\n\r");
+            while(1) {
+                c = fgetc(file);
+                if ( c == EOF ) {
+                    break;
+                }
+                pc.putc(c);
+
+            }
+
+            // Close the file and finish
+            fclose(file);
+            pc.printf("Done! Safe to remove SD card\n\r");
+            wait(2);
+
+
+        }
+
+
+
+
+    }
+}
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