#include <LiquidCrystal_I2C.h>
#include <Servo.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);
Servo sg90;
Servo sg91;
Servo sg92;
 
constexpr uint8_t greenLed = 7;
constexpr uint8_t redLed = 6;
constexpr uint8_t servoPin = 8;
constexpr uint8_t ServoPin2 = 9;
constexpr uint8_t ServoPin3 = 2;
String voice;
int error=0;

void HIGH1() {
  sg91.write(90);
  delay(2000);
}

void LOW1() {
  sg91.write(0);
}

void OPEN() {
  sg92.write(360);
}

void CLOSE() {
  sg92.write(0);
}

void setup() {
  Serial.begin(9600);
  Serial.println("Working...");
  pinMode(redLed, OUTPUT);
  pinMode(greenLed, OUTPUT);
  pinMode(12, INPUT);
  pinMode(13, INPUT);
  pinMode(11, INPUT);
  pinMode(10, INPUT);

  sg92.attach(ServoPin3);
  sg91.attach(ServoPin2);
  sg90.attach(servoPin);
  sg90.write(0);
  lcd.init();
  lcd.backlight();
  lcd.clear();
}

void loop() {
  lcd.setCursor(1, 0);
  lcd.print("Hold up the keycard");

  while (Serial.available()) {
    delay(10);
    char c = Serial.read();
    if (c == '#')
    {
      break;
    }
    voice += c;
  }

  if (voice.length() > 0) {
    Serial.println(voice);
    if (voice == "High")
    {
      HIGH1();
    }
    else if (voice == "Low") {
      LOW1();
    }
    else if (voice == "Open") {
      OPEN();
    }
    else if (voice == "Close") {
      CLOSE();
    }
  }
  voice="";

  if (digitalRead(3)==HIGH)
  {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Hello Mr Misha");
    lcd.setCursor(0, 1);
    lcd.print("Door Opened");
    sg90.write(180);
    digitalWrite(greenLed, HIGH);
    delay(3000);
    digitalWrite(greenLed, LOW);
    sg90.write(0);
    lcd.clear();
  }

  else
  {
    if(digitalRead(4)==HIGH){
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Hello Mr Dima");
      lcd.setCursor(0, 1);
      lcd.print("Door Opened");
      sg90.write(150);
      digitalWrite(greenLed, HIGH);
      delay(3000);
      digitalWrite(greenLed, LOW);
      sg90.write(0);
      lcd.clear();
    }
    if(digitalRead(5)==HIGH){
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Wrong Key Card");
    digitalWrite(redLed, HIGH);
    delay(3000);
    digitalWrite(redLed, LOW);
    lcd.clear();
    error++;
  }
  lcd.setCursor(1, 2);
  lcd.print("WRONG TRY: ");
  lcd.print(error);
}
}