Oliver Thompson / Mbed OS ELEC351-Coursework

Repo. for the ELEC351 Coursework - Oliver Thompson

Dependencies:   BMP280 ELEC350-Practicals-FZ429- TextLCD watchdog_RTOS BME280 ntp-client

LCD.hpp@10:08c366434f2b, 2018-12-04 (annotated)

Committer:
O_Thom
Date:
Tue Dec 04 15:26:46 2018 +0000
Revision:
10:08c366434f2b
Parent:
9:654e14de9d74
Child:
11:b8e8630c7e3b
Serial Callbacks Included. Changing classes to access each others member functions without the use of objects.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
O_Thom 6:b7f6e0c0f646 1 #ifndef _LCD_
O_Thom 6:b7f6e0c0f646 2 #define _LCD_
O_Thom 6:b7f6e0c0f646 3 #include "mbed.h"
O_Thom 6:b7f6e0c0f646 4 #include "messageStruct.hpp"
O_Thom 6:b7f6e0c0f646 5 #include "sample_hardware.hpp"
O_Thom 9:654e14de9d74 6 #include <vector>
O_Thom 9:654e14de9d74 7
O_Thom 6:b7f6e0c0f646 8 class LCD_Data
O_Thom 5:f87129ac8bf3 9 {
O_Thom 5:f87129ac8bf3 10 private: //private variables can only be changed via functions in this function
O_Thom 6:b7f6e0c0f646 11 float temp; //current temperature of sensor, updated every 15 seconds
O_Thom 6:b7f6e0c0f646 12 float pressure; //current pressure of sensor, updated every 15 seconds
O_Thom 6:b7f6e0c0f646 13 float fLDR; //current light level from LDR, updated every 15 seconds
O_Thom 6:b7f6e0c0f646 14 int flip;
O_Thom 6:b7f6e0c0f646 15
O_Thom 6:b7f6e0c0f646 16 void update_temp(double t) //use this function to update the current temperature value
O_Thom 6:b7f6e0c0f646 17 {
O_Thom 6:b7f6e0c0f646 18 temp = t;
O_Thom 6:b7f6e0c0f646 19 }
O_Thom 6:b7f6e0c0f646 20 void update_pressure(double p) //use this function to update the current pressure value
O_Thom 6:b7f6e0c0f646 21 {
O_Thom 6:b7f6e0c0f646 22 pressure = p;
O_Thom 6:b7f6e0c0f646 23 }
O_Thom 6:b7f6e0c0f646 24 void update_LDR(double L)
O_Thom 6:b7f6e0c0f646 25 {
O_Thom 6:b7f6e0c0f646 26 fLDR = L;
O_Thom 6:b7f6e0c0f646 27 }
O_Thom 6:b7f6e0c0f646 28
O_Thom 5:f87129ac8bf3 29 public:
O_Thom 5:f87129ac8bf3 30 EventQueue LCD_Queue; //create an event queue for main
O_Thom 5:f87129ac8bf3 31 LCD_Data(){ //constructor, initializes the FLIP variable for use in toggling the bottom line of the LCD
O_Thom 5:f87129ac8bf3 32 flip = 1;
O_Thom 6:b7f6e0c0f646 33 temp = 0;
O_Thom 6:b7f6e0c0f646 34 pressure = 0;
O_Thom 6:b7f6e0c0f646 35 fLDR = 0;
O_Thom 5:f87129ac8bf3 36 }
O_Thom 10:08c366434f2b 37
O_Thom 6:b7f6e0c0f646 38 void update_sensor_info(sample_message msg) //updates all current sensor information, this is called by a ticker every 5 seconds to read from the mailbox
O_Thom 5:f87129ac8bf3 39 {
O_Thom 6:b7f6e0c0f646 40 update_temp(msg.temp); // Include message class passing of data
O_Thom 6:b7f6e0c0f646 41 update_pressure(msg.pressure);
O_Thom 6:b7f6e0c0f646 42 update_LDR(msg.ldr);
O_Thom 5:f87129ac8bf3 43 }
O_Thom 5:f87129ac8bf3 44 void display_LCD() //updates the current LCD display with the new sensor information
O_Thom 5:f87129ac8bf3 45 {
O_Thom 5:f87129ac8bf3 46 lcd.cls(); //clear current LCD display
O_Thom 5:f87129ac8bf3 47 lcd.printf("%4.2fC", temp); //print temperature to the top line of LCD, 2dp celcius
O_Thom 5:f87129ac8bf3 48 switch(flip){
O_Thom 5:f87129ac8bf3 49 case 1:
O_Thom 5:f87129ac8bf3 50 lcd.printf("\n%4.2f mbar", pressure); //print pressure to bottom line of LCD, 2dp mbar
O_Thom 6:b7f6e0c0f646 51 flip = 2;
O_Thom 6:b7f6e0c0f646 52 break;
O_Thom 6:b7f6e0c0f646 53 case 2:
O_Thom 6:b7f6e0c0f646 54 lcd.printf("\n%4.2f Lux", fLDR); //print pressure to bottom line of LCD, 2dp mbar
O_Thom 6:b7f6e0c0f646 55 flip = 1;
O_Thom 6:b7f6e0c0f646 56 break;
O_Thom 6:b7f6e0c0f646 57 default:
O_Thom 5:f87129ac8bf3 58 printf("Error in LCD flip function");
O_Thom 5:f87129ac8bf3 59 break;
O_Thom 5:f87129ac8bf3 60 }
O_Thom 9:654e14de9d74 61 }
O_Thom 6:b7f6e0c0f646 62 };
O_Thom 10:08c366434f2b 63 #endif
O_Thom 10:08c366434f2b 64
O_Thom 10:08c366434f2b 65 // Create an instance
O_Thom 5:f87129ac8bf3 66 LCD_Data m_oDisplay;