PROJ515 / Mbed OS ELEC-351-GROUP-E-CW

fuck this

Dependencies:   BMP280

LCD.h@16:1b3488fb67f5, 2018-01-07 (annotated)

Committer:
Swaggie
Date:
Sun Jan 07 00:02:29 2018 +0000
Revision:
16:1b3488fb67f5
Parent:
15:e61297f9bae9
Child:
17:95b0b1ec0f90
Made good progress on LCD functions. Now constructs correctly.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Swaggie 2:5a38ae8459d5 1 #ifndef __LCD__
Swaggie 2:5a38ae8459d5 2 #define __LCD__
Swaggie 14:1fb1354ac27c 3 /*
Swaggie 14:1fb1354ac27c 4 *This class inherits the TextLCD class to add functionality to display enviromental readings,
Swaggie 15:e61297f9bae9 5 *with a scrolling display, or to display a specific message, which times out back
Swaggie 15:e61297f9bae9 6 *to scrolling, and to set the time using two push buttons.
Swaggie 14:1fb1354ac27c 7 */
Swaggie 14:1fb1354ac27c 8 #include "mbed.h"
Swaggie 14:1fb1354ac27c 9 #include "TextLCD.h"
Swaggie 15:e61297f9bae9 10 #include "rtos.h"
Swaggie 14:1fb1354ac27c 11 #include <string>
Swaggie 2:5a38ae8459d5 12 //These functions manage writing to the LCD
Swaggie 2:5a38ae8459d5 13
Swaggie 15:e61297f9bae9 14 class EnviromLCDDisplay : private TextLCD
Swaggie 14:1fb1354ac27c 15 {
Swaggie 14:1fb1354ac27c 16 private:
Swaggie 14:1fb1354ac27c 17 //private variables
Swaggie 14:1fb1354ac27c 18 enum ThreadState{MESSAGE,SCROLLREADINGS,ADJUSTTIME};
Swaggie 14:1fb1354ac27c 19 enum ScrollState{PRESTEMP,LDRTIME};
Swaggie 14:1fb1354ac27c 20
Swaggie 14:1fb1354ac27c 21 ThreadState _TState; //This determines what function the LCD is doing
Swaggie 14:1fb1354ac27c 22 ScrollState _SState; //This determines what screen on the LCD is shown
Swaggie 14:1fb1354ac27c 23
Swaggie 15:e61297f9bae9 24 //Values to display
Swaggie 15:e61297f9bae9 25 float _temperature;
Swaggie 15:e61297f9bae9 26 float _pressure;
Swaggie 15:e61297f9bae9 27 float _ldr;
Swaggie 15:e61297f9bae9 28 string _message;
Swaggie 15:e61297f9bae9 29
Swaggie 15:e61297f9bae9 30 //Objects to be used
Swaggie 15:e61297f9bae9 31 Ticker _DisplayScroll; //pointer to an external ticker that will be used for changing the display
Swaggie 15:e61297f9bae9 32 Thread _LCDThread; //Pointer to the therad that will be used for the LCD
Swaggie 15:e61297f9bae9 33 PinName _Button1Pin; //Button will change between InterruptIn and DigitalIn. Used to enter time edit mode
Swaggie 15:e61297f9bae9 34 DigitalIn _Button2; //Button2
Swaggie 15:e61297f9bae9 35 bool _AutoQuit; //After message is displayed, should LCD return to SCROLLREADINGS?
Swaggie 15:e61297f9bae9 36
Swaggie 14:1fb1354ac27c 37 //private functions
Swaggie 16:1b3488fb67f5 38 void LCDThreadFn(void); //This needs to be attached to a thread
Swaggie 16:1b3488fb67f5 39 void TimeButtonISR(void); //Run when Button 1 is set as an interrupt in
Swaggie 16:1b3488fb67f5 40 void DisplayScrollISR(void);//Run by ticker
Swaggie 14:1fb1354ac27c 41 public:
Swaggie 14:1fb1354ac27c 42 //public functions
Swaggie 16:1b3488fb67f5 43 EnviromLCDDisplay(PinName rs, PinName e, PinName d4, PinName d5, PinName d6, PinName d7, PinName Button1Pin, PinName Button2); //Constructor
Swaggie 15:e61297f9bae9 44 //~EnviromLCDDisplay(); //Destructor
Swaggie 14:1fb1354ac27c 45
Swaggie 15:e61297f9bae9 46 bool POST(void); //Power On Self Test. Returns true if pass
Swaggie 15:e61297f9bae9 47 void Start(void); //Starts thread
Swaggie 15:e61297f9bae9 48
Swaggie 15:e61297f9bae9 49 void DispMessage(string message, bool returnToReadings); //Display given message on screen
Swaggie 16:1b3488fb67f5 50
Swaggie 15:e61297f9bae9 51
Swaggie 14:1fb1354ac27c 52 };
Swaggie 14:1fb1354ac27c 53
Swaggie 14:1fb1354ac27c 54
Swaggie 2:5a38ae8459d5 55 #endif