Diff: LCD.hpp

Revision:

5:f87129ac8bf3

Child:

6:b7f6e0c0f646

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LCD.hpp	Thu Nov 29 16:08:28 2018 +0000
@@ -0,0 +1,52 @@
+ #ifndef _LCD_
+ #define _LCD_
+ #include "mbed.h"
+ #include "message.hpp"
+
+ class LCD_Data
+    {
+     private:  //private variables can only be changed via functions in this function
+     float temp;       //current temperature of sensor, updated every 15 seconds
+     float pressure;  //current pressure of sensor, updated every 15 seconds
+     float fLDR;      //current light level from LDR, updated every 15 seconds
+     int flip;
+     void update_temp(double temp) //use this function to update the current temperature value
+        {
+        temp = sensor.getTemperature();
+        } 
+    void update_pressure(double pressure) //use this function to update the current pressure value
+        {
+        pressure = sensor.getPressure();    
+        } 
+    public:
+    EventQueue LCD_Queue;  //create an event queue for main
+    
+    LCD_Data(){ //constructor, initializes the FLIP variable for use in toggling the bottom line of the LCD
+        flip = 1;
+        temp = sensor.getTemperature();
+        pressure = sensor.getPressure(); 
+    }   
+    void update_sensor_info() //updates all current sensor information, this is called by a ticker every 5 seconds to read from the mailbox
+    {
+         update_temp(0);    // Include message class passing of data
+         update_pressure(0);
+    }
+    void display_LCD() //updates the current LCD display with the new sensor information
+        {
+         lcd.cls(); //clear current LCD display
+         lcd.printf("%4.2fC", temp); //print temperature to the top line of LCD, 2dp celcius
+         switch(flip){
+         case 1: 
+            lcd.printf("\n%4.2f mbar", pressure); //print pressure to bottom line of LCD, 2dp mbar
+            break;    
+
+          default: 
+            printf("Error in LCD flip function");
+            break;
+         }
+       } 
+    }; //end of class LCD_Data
+// Define Objects for the LCD_Data Class
+LCD_Data m_oDisplay;
+
+ #endif
\ No newline at end of file