Diff: main.cpp

Revision:

0:790a9e0285d6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jul 10 15:23:02 2017 +0000
@@ -0,0 +1,141 @@
+////////////////////////////////////////////////////////////////
+//  Plant Research Rig V1.1.05                                //
+//  Michael Steel                                             //
+////////////////////////////////////////////////////////////////
+
+// Libraries
+#include "mbed.h"
+#include "Dht11.h"
+#include "ConfigFile.h"
+// Define I/O and constants
+
+Serial pc(USBTX, USBRX);
+Dht11 sensor(p5);
+DigitalIn LOG_SWITCH(p20);
+DigitalOut TEMP_BLED(p7);
+DigitalOut TEMP_GLED(p8);
+DigitalOut TEMP_RLED(p9);
+DigitalOut FAN(p10);
+DigitalOut HEAT(p11);
+
+LocalFileSystem local("local");
+ConfigFile cfg;
+float TEMP;
+float TEMPHH;
+float TEMPH;
+float TEMPL;
+float TEMPLL;
+int TCHECK;
+int YEAR;
+
+
+int main()
+{
+    // Determins Input file variables
+    char *key1 = "TEMPHH";
+    char *key2 = "TEMPH";
+    char *key3 = "TEMPL";
+    char *key4 = "TEMPLL";
+    char *key5 = "YEAR";
+    char value[BUFSIZ];
+
+    // Read the configuration file from the mbed
+    cfg.read("/local/input.cfg");
+    if (cfg.getValue(key5, &value[0], sizeof(value))) {
+        YEAR = atoi(value) ;
+    }
+    pc.printf("\r\n Plant Research Rig V1.0 \r\n Resart occured loading variables \r\n");
+    // Check correct time and get the current time from the terminal if needed
+    struct tm t;
+    time_t seconds = time(NULL);
+    char buffer[21];
+    strftime(buffer, 21, "%Y\n", localtime(&seconds));
+    TCHECK = atoi(buffer) ;
+    if (TCHECK != YEAR ) {
+        printf("Enter current date and time:\n");
+        printf("YYYY MM DD HH MM SS[enter]\n");
+        scanf("%d %d %d %d %d %d", &t.tm_year, &t.tm_mon, &t.tm_mday
+              , &t.tm_hour, &t.tm_min, &t.tm_sec);
+
+        // adjust for tm structure required values
+        t.tm_year = t.tm_year - 1900;
+        t.tm_mon = t.tm_mon - 1;
+
+        // set the time
+        set_time(mktime(&t));
+
+        // display the time
+        time_t seconds = time(NULL);
+    }
+    //printf("\r\n Time as a basic string = %s \r\n", ctime(&seconds));
+    wait(1);
+    if (cfg.getValue(key1, &value[0], sizeof(value))) {
+        pc.printf("'%s'='%s'\r\n", key1, value);
+        TEMPHH = atof(value) ;
+    } else {
+        pc.printf("Failure to get a configuration. Please check config file");
+    }
+    if (cfg.getValue(key2, &value[0], sizeof(value))) {
+        pc.printf("'%s'='%s'\r\n", key2, value);
+        TEMPH = atof(value) ;
+    }
+    if (cfg.getValue(key3, &value[0], sizeof(value))) {
+        pc.printf("'%s'='%s'\r\n", key3, value);
+        TEMPL = atof(value) ;
+    }
+    if (cfg.getValue(key4, &value[0], sizeof(value))) {
+        pc.printf("'%s'='%s'\r\n", key4, value);
+        TEMPLL = atof(value) ;
+    }
+    pc.printf("Begin logging \r\n");
+    while(1) {
+        while(LOG_SWITCH == 1) {
+
+            sensor.read() ;
+            time_t seconds = time(NULL);
+            strftime(buffer, 21,"%X, %x\n", localtime(&seconds));
+            FILE *fp = fopen("/local/out.txt", "a");  // Open "out.txt" on the local file system for writing
+            fprintf(fp, "\r\n T: %f, H: %f, %s,",sensor.getCelsius(),sensor.getHumidity(),buffer);
+            fclose(fp);
+
+            pc.printf("\r\n T: %f, H: %f, %s,",sensor.getCelsius(),sensor.getHumidity(),buffer);
+            TEMP = sensor.getCelsius();
+
+            if (TEMP >= TEMPHH) {
+                FAN = 1;
+                HEAT = 0;
+                TEMP_RLED = 1;
+                TEMP_GLED = 0;
+                TEMP_BLED = 0;
+                pc.printf(" Temperature in High Alarm");
+            } else if (TEMP >=  TEMPH) {
+                FAN = 1;
+                HEAT = 0;
+                TEMP_RLED = 0;
+                TEMP_GLED = 1;
+                TEMP_BLED = 0;
+            } else if (TEMP >=  TEMPL) {
+                FAN = 0;
+                HEAT = 0;
+                TEMP_RLED = 0;
+                TEMP_GLED = 1;
+                TEMP_BLED = 0;
+            } else if (TEMP >=  TEMPLL) {
+                FAN = 0;
+                HEAT = 1;
+                TEMP_RLED = 0;
+                TEMP_GLED = 1;
+                TEMP_BLED = 0;
+            } else {
+                FAN = 0;
+                HEAT = 1;
+                TEMP_RLED = 0;
+                TEMP_GLED = 0;
+                TEMP_BLED = 1;
+                pc.printf(" Temperature in Low Alarm");
+            }
+            wait(1);
+
+        }
+    }
+}