69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
#include <Arduino.h>
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#include <LiquidCrystal_I2C.h>
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enum LCDScreenState {
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DISPLAY_DEFAULT_MESSAGE,
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DISPLAY_TEMPERATURE,
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DISPLAY_PARKING_SPOTS_FULL,
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DISPLAY_PARKING_SPOTS
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};
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class LCDScreen {
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private:
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LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0x27,20,4);
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LCDScreenState state;
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String default_message = "Bem vindo!";
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public:
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LCDScreen(String default_message = ""){
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if (default_message != ""){
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this->default_message = default_message;
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}
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}
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void init(){
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lcd.init();
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lcd.backlight();
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this->display_default_message();
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}
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void clear(){
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lcd.clear();
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}
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void display_temperature(float temp){
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if (this->state != DISPLAY_TEMPERATURE){
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this->clear();
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this->state = DISPLAY_TEMPERATURE;
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}
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lcd.setCursor(0, 0);
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lcd.print("Temp: ");
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lcd.print(temp,1);
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lcd.print(" C ");
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}
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void display_default_message(){
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if (this->state != DISPLAY_DEFAULT_MESSAGE){
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this->clear();
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this->state = DISPLAY_DEFAULT_MESSAGE;
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}
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lcd.setCursor(0, 0);
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lcd.print(this->default_message);
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}
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void display_message_full(){
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this->state = DISPLAY_PARKING_SPOTS_FULL;
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lcd.setCursor(0, 0);
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this->clear();
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lcd.print("Parking Lot is FULL.\nPlease come back later.\n");
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}
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void display_message(int slots){
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this->state = DISPLAY_PARKING_SPOTS;
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lcd.setCursor(0, 0);
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this->clear();
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lcd.print("Available slots: ");
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lcd.print(slots); lcd.print('\n');
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}
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}; |