#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Keypad.h>
#include<Servo.h>
Servo myServita;
const int servoPin=10;
int readVal;
 const int buttonPin = 1;
const int redPin = 13;
const int greenPin = 12;
const int bluePin = 0;
int counter = 0;


const byte ROWS = 4;
const byte COLS = 4;

char hexaKeys[ROWS][COLS] = {
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};

byte rowPins[ROWS] = {9, 8, 7, 6};
byte colPins[COLS] = {5, 4, 3, 2};

Keypad customKeypad = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);

LiquidCrystal_I2C lcd(0x3F, 16, 2);

void setup(){
  lcd.backlight();
  lcd.init();
  myServita.attach(servoPin);
  Serial.begin(9600);
  pinMode(buttonPin, INPUT);
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
}

void loop(){
  char customKey = customKeypad.getKey();
  if (customKey){

    lcd.print(customKey);

  }
  if (customKey=='*')
  {
    lcd.clear();
  }
  if (customKey=='#')
  {
  readVal=129;
  myServita.write(readVal);
  delay(500);
  myServita.write(0);
  delay(500);
  int buttonState;
  buttonState = digitalRead(buttonPin);

  if (buttonState == LOW) {
    counter++;
    delay(150);
  }

  else if (counter == 0) {
    digitalWrite(redPin, LOW);
    digitalWrite(greenPin, LOW);
    digitalWrite(bluePin, LOW);
  }

  else if (counter == 1) {
    digitalWrite(redPin, HIGH);
    digitalWrite(greenPin, LOW);
    digitalWrite(bluePin, LOW);
  }

  else if (counter == 2) {
    digitalWrite(redPin, LOW);
    digitalWrite(greenPin, HIGH);
    digitalWrite(bluePin, LOW);
  }

  else if (counter == 3) {
    digitalWrite(redPin, LOW);
    digitalWrite(greenPin, LOW);
    digitalWrite(bluePin, HIGH);
  }

  else {
    counter = 0;
  }
}
}