Diff: main.cpp

Revision:

3:25b7f448750d

Parent:

2:ad0b044d0a10

--- a/main.cpp	Sat Dec 04 11:31:07 2010 +0000
+++ b/main.cpp	Fri Nov 29 10:18:58 2019 +0000
@@ -1,10 +1,134 @@
-// Hello World! for the TextLCD
-
 #include "mbed.h"
 #include "TextLCD.h"
+#include "HYT.h"
+#include "Watchdog.h"
 
-TextLCD lcd(p15, p16, p17, p18, p19, p20); // rs, e, d4-d7
+// Setup Hardware
+HYT SENSOR (D0,D1); //Nucleo (SDA,SCL) (D0,D1) (D4,D5)
+TextLCD lcd(D9, D6, D5, D4, D3, D2); // rs, e, d4-d7
+
+// Setup Watchdog
+Watchdog wd;
+
+//Define Pins
+AnalogOut AOUT(A3);
+DigitalOut my_led(LED1);
+DigitalOut Alarm_led(A7);
+
+//Setup Timer
+Ticker timeKeeping;
+
+//Setup Variables
+float Calibration = 0; // RH correction value
+float SetPoint = 5; // Max Dew Point in Celsius to trigger alarm.
+int Counter = 0;
+float RHValue = 0;
+float TempValue = 0;
+float A = 0;
+float DewPoint = -50;
+float sample = 0;
+float test = 0;
 
 int main() {
-    lcd.printf("Hello World!\n");
-}
+    //lcd.printf("Hello World5!\n");
+    Alarm_led=1;
+    //lcd.setBacklight(TextLCD::LightOn);
+    //lcd.setCursor(TextLCD::CurOff_BlkOff);
+    wd.Configure(4.0);
+
+    wait_ms(100);
+
+    lcd.printf("TegnonEfficiency\n");
+    lcd.locate(0,1);
+    lcd.printf("Dew Point Sensor\n");
+
+    wait_ms(1000);
+
+    lcd.cls();
+
+    lcd.printf("Dew Point:");
+    lcd.locate(0,1);
+    lcd.printf("RH:");
+    lcd.locate(8,1);
+    lcd.printf("T:");
+
+while(1) {
+        Counter = Counter + 1;
+        wait(1);
+        wd.Service();
+        my_led = !my_led;
+
+if(Counter == 10)
+{
+    lcd.cls();
+    lcd.printf("Dew Point:");
+    lcd.locate(0,1);
+    lcd.printf("RH:");
+    lcd.locate(8,1);
+    lcd.printf("T:");
+    Counter = 0;
+    }
+
+        if(DewPoint > SetPoint) {
+            Alarm_led = !Alarm_led;
+        } else {
+            Alarm_led=1;
+        }
+
+        SENSOR.MRCommand();
+        wait_ms(100);
+        SENSOR.DFCommand();
+        wait_ms(100);
+              
+            RHValue = (SENSOR.humidity);
+            TempValue = (SENSOR.temperature);
+
+ if(RHValue > 1)
+ {      
+
+            A = log( RHValue * 0.01 * pow(10, 7.5*TempValue/(237.2+TempValue) )  );
+            DewPoint = ( 23720 * A/(17.269-A))/100;
+
+            if(DewPoint < -50) {
+                DewPoint = -50;
+            }
+
+            if(DewPoint > 20) {
+                DewPoint = 20;
+            }
+
+        test = 0.01428728*DewPoint+0.714364;
+
+            lcd.locate(10,0);
+            lcd.printf("      ");
+            lcd.locate(10,0);
+            lcd.printf("%.1f%", DewPoint);
+            lcd.printf("C");
+            lcd.locate(3,1);
+            lcd.printf("     ");
+            lcd.locate(3,1);
+            lcd.printf("%.1f%", RHValue);
+            lcd.locate(10,1);
+            lcd.printf("      ");
+            lcd.locate(10,1);
+            lcd.printf("%.1f%", TempValue);
+            lcd.printf("C\n");
+
+            AOUT = 0.0142857142857143*DewPoint+0.7142857143;
+        
+            }
+            else
+            {
+                AOUT = 0;
+                lcd.cls();
+                wait_ms(1000);
+                lcd.locate(0,0);
+                lcd.printf("     Sensor     \n");
+                lcd.locate(0,1);
+                lcd.printf("      Error     \n");
+                }
+                
+    } // While(1)
+} //Void Main
+
+