#include <Keypad.h>
#include <LiquidCrystal_I2C.h>
#include <SoftwareSerial.h> 
#include <Wire.h> 
#define rxpin 12  
#define txpin 13 
LiquidCrystal_I2C lcd(0x27,16,2); 
SoftwareSerial myserial(rxpin, txpin); 

// Define the LED pin
const int ledPin = 10;
const int ledPin1= 11;
const int ledPin2= A1;
const int ledPin3= A0;

// Define the keypad size and keys
const byte ROWS = 4; // Four rows
const byte COLS = 4; // Four columns

String inputString = "";      // a String to hold incoming data
bool stringComplete = false;  // whether the string is complete

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

byte rowPins[ROWS] = {9, 8, 7, 6}; // Connect to the row pinouts of the keypad
byte colPins[COLS] = {5, 4, 3, 2}; // Connect to the column pinouts of the keypad

// Create the Keypad object
Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(ledPin3, OUTPUT);
  Serial.begin(9600);
  myserial.begin(9600);
  lcd.init();
  lcd.backlight();
 
  // lcd.clear();
  
  // lcd.setCursor(0, 0);
  lcd.noCursor();
  lcd.cursor_off();
  lcd.blink_on();
  lcd.print(F("Cursor blink"));
  inputString.reserve(200);
  //Serial.println(Serial.list());

  //Serial.begin(9600); // Serial1 is connected to the custom chip
  //Serial.print("Uryyb, HNEG!");
  //Serial.print("Uryyb, HNEG!");

  //Serial.println("Data received from UART chip:");
}

void loop() {

  
  if (stringComplete) {
    lcd.setCursor(0,0);
    lcd.cursor_off();
    lcd.blink_off();
    lcd.print(inputString);
    // clear the string:
    inputString = "";
    stringComplete = false;
   }
   while (myserial.available()) {
     //Serial.print((char)myserial.read());   
     char inChar = (char)myserial.read();
    // add it to the inputString:
     inputString += inChar;
    // if the incoming character is a newline, set a flag so the main loop can
    // do something about it:
     if (inChar == '\n') {
      Serial.print(inputString);
      stringComplete = true;
    }
   }
  char key = keypad.getKey();
  if (key) {
    if (key == '1') {
      digitalWrite(ledPin, HIGH);
      //Serial.println("Uryyb, HNEG!");
      //Serial.write("Uryyb, HNEG!");
      myserial.print("Uryyb, HNEG!\n");
      }
    if (key == '2') {
    digitalWrite(ledPin, HIGH);
    digitalWrite(ledPin1, HIGH); }

    if (key == '3') {
    digitalWrite(ledPin, HIGH);
    digitalWrite(ledPin1, HIGH);
    digitalWrite(ledPin2, HIGH); }

    if (key == '4') {
    digitalWrite(ledPin, HIGH);
    digitalWrite(ledPin1, HIGH);
    digitalWrite(ledPin2, HIGH);
    digitalWrite(ledPin3, HIGH);
    }

    if (key == 'A') {
    digitalWrite(ledPin, HIGH);
    delay(500);
    digitalWrite(ledPin, LOW);
    delay(500);
    digitalWrite(ledPin1, HIGH);
    delay(500);
    digitalWrite(ledPin1, LOW);
    delay(500);
    digitalWrite(ledPin2, HIGH);
    delay(500);
    digitalWrite(ledPin2, LOW);
    delay(500);
    digitalWrite(ledPin3, HIGH);
    delay(500);
    digitalWrite(ledPin3, LOW);
    delay(500);
    }

    if (key == 'B') {
    digitalWrite(ledPin3, HIGH);
    delay(500);
    digitalWrite(ledPin3, LOW);
    delay(500);
    digitalWrite(ledPin2, HIGH);
    delay(500);
    digitalWrite(ledPin2, LOW);
    delay(500);
    digitalWrite(ledPin1, HIGH);
    delay(500);
    digitalWrite(ledPin1, LOW);
    delay(500);
    digitalWrite(ledPin, HIGH);
    delay(500);
    digitalWrite(ledPin, LOW);
    delay(500);
    }

    if (key == '0') {
    digitalWrite(ledPin, LOW);
    digitalWrite(ledPin1,LOW);
    digitalWrite(ledPin2,LOW);
    digitalWrite(ledPin3,LOW);
}
}
}


//void serialEvent() {
// void serialEvent() {
//   while (Serial.available()) {
//     // get the new byte:
//     char inChar = (char)Serial.read();
//     // add it to the inputString:
//     inputString += inChar;
//     // if the incoming character is a newline, set a flag so the main loop can
//     // do something about it:
//     if (inChar == '!') {
//       Serial.print(inputString);
//       stringComplete = true;
//     }
//   }
// }