Diff: main.cpp

Revision:

0:aadd841890b5

diff -r 000000000000 -r aadd841890b5 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon May 11 23:50:39 2015 +0000
@@ -0,0 +1,109 @@
+/**
+@file main.cpp
+
+@brief Program implementation
+
+*/
+
+#include "main.h"
+
+
+int main()
+{
+
+    /// initiliase barometer
+
+    bmp180.init();
+    lcd.init(); /// intialise display
+    
+    buzzer.beep(1000,0.5);
+    lcd.printString("Welcome to",0,1);  /// display splash screen
+    lcd.printString("My Temperature",0,2);
+    lcd.printString("and Pressure",0,3);
+    lcd.printString("Sensor",0,5);
+    wait(3);
+
+    lcd.clear();
+    lcd.refresh();
+    
+    
+    
+    
+        while(1) {
+
+            if(button == 1) {
+                
+                lcd.clear();
+                lcd.refresh();
+                char buffer[14];
+                Measurement measurement;  /// measurement structure declared in BMP180 class
+                measurement = bmp180.readValues();
+                wait(0.1);
+                
+                int length = sprintf(buffer, "T = %.2f F", measurement.temperature*9/5+32); ///temp unit changed to F using the formula
+                if (length <= 14)
+                    lcd.printString(buffer,0,1);
+                wait(0.1);
+
+                length = sprintf(buffer, "P =%.2f b ", measurement.pressure/1000); /// pressure unit changed using /1000 to b
+                if (length <=14)
+                    lcd.printString(buffer,0,2);
+                wait(0.1);
+                
+            } 
+            else{
+                char buffer[14];
+                Measurement measurement;  /// measurement structure declared in BMP180 class
+                measurement = bmp180.readValues();
+                wait(0.1);
+
+                int length = sprintf(buffer, "T = %.2f C", measurement.temperature); /// temp unit in Celsius
+                if (length <= 14)
+                    lcd.printString(buffer,0,1);
+                wait(0.1);
+
+                length = sprintf(buffer, "P =%.2f mb ", measurement.pressure); /// pressure unit in mb
+                if (length <=14)
+                    lcd.printString(buffer,0,2);
+                wait(0.1);
+                ///lcd.refresh();
+            }
+            Measurement measurement;  /// measurement structure declared in BMP180 class
+            measurement = bmp180.readValues();
+            wait(0.1);
+            temp=measurement.temperature;
+            
+        
+            
+            if (measurement.temperature > 30) {
+                myled= 0.0; /// LED off
+                myled2=1.0; /// LED on
+                buzzer.beep(1000,0.5); /// Buzzer on when temp is > 30
+
+            }
+
+
+            else if (measurement.temperature < 25) { 
+                myled=1.0; /// led on 
+                myled2=0.0; /// led off
+            }
+
+            else {
+                myled=0.0; /// both leds are off when temp is between 25-30
+                myled2=0.0;
+            }
+
+
+            lcd.setBrightness(1.0); /// put LED backlight on full
+            V= mypotentiometer; /// potentiometer controls brightness of the screen
+            lcd.setBrightness(V);
+
+            wait(0.01);
+
+        }
+
+    }
+
+
+
+