//https://wokwi.com/projects/400989601730176001


#include <Keypad.h>
#include <LiquidCrystal_I2C.h>
#include <EEPROM.h> 


const uint8_t ROWS = 4;
const uint8_t COLS = 4;
char keys[ROWS][COLS] = {
  { '1', '2', '3', 'A' },
  { '4', '5', '6', 'B' },
  { '7', '8', '9', 'C' },
  { '*', '0', '#', 'D' }
};

uint8_t colPins[COLS] = { 5, 4, 3, 2 };  
// Pins connected to C1, C2, C3, C4
uint8_t rowPins[ROWS] = { 9, 8, 7, 6 };  
// Pins connected to R1, R2, R3, R4


LiquidCrystal_I2C lcd(0x27, 20, 4);

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

const int LED_CC1 = A0;
int LED_stateCC1 = 0;

const int LED_CC2 = A1;
int LED_stateCC2 = 0;

const int LED_CC3 = A2;
int LED_stateCC3 = 0;

const int LED_CC4 = A3;
int LED_stateCC4 = 0;

const int LED_CC5 = 10;
int LED_stateCC5 = 0;

const int LED_CC6 = 11;
int LED_stateCC6 = 0;

int delay_bounce = 55;

void setup() {

  Serial.begin(9600);

  pinMode(LED_CC1, OUTPUT);
  pinMode(LED_CC2, OUTPUT);
  pinMode(LED_CC3, OUTPUT);
  pinMode(LED_CC4, OUTPUT);
  pinMode(LED_CC5, OUTPUT);
  pinMode(LED_CC6, OUTPUT);

  //pinMode(12, INPUT);  //LED TAP TEMPO
  //pinMode(13, INPUT);  //TAP TEMPO

  lcd.init();
  lcd.backlight();

  lcd.setCursor(5, 1);
  lcd.print("ELEKTRONIK");
  lcd.setCursor(6, 2);
  lcd.print("NASIONAL");

  digitalWrite(LED_CC1, LED_stateCC1);
  checkLED_stateCC1(); 

  digitalWrite(LED_CC2, LED_stateCC2);
  checkLED_stateCC2();

  digitalWrite(LED_CC3, LED_stateCC3);
  checkLED_stateCC3(); 

  digitalWrite(LED_CC4, LED_stateCC4);
  checkLED_stateCC4();

  digitalWrite(LED_CC5, LED_stateCC5);
  checkLED_stateCC5(); 

  digitalWrite(LED_CC6, LED_stateCC6);
  checkLED_stateCC6(); 

}

void loop() {


  for (int bank = 0; bank < 6;) {

    char key = keypad.getKey();

    if (key == '9') {  //BANK UP
      bank++;
      lcd.clear();
      lcd.setCursor(0, 2);
      lcd.print("bank UP");
      lcd.setCursor(0, 3);
      lcd.print("choose a preset");
      delay(delay_bounce);
      if (bank > 5) {
        bank = 0;
      }
    }

    if (key == '0') {  //BANK DOWN
      bank--;
      lcd.clear();
      lcd.setCursor(0, 2);
      lcd.print("bank DOWN");
      lcd.setCursor(0, 3);
      lcd.print("choose a preset");
      delay(delay_bounce);
      if (bank < 0) {
        bank = 5;
      }
    }
    
    if (key == 'A') {
      if (LED_stateCC1 == 0) {
        digitalWrite(LED_CC1, 1);
        LED_stateCC1 = 1;
        Serial.println("PRE module ON");
        Serial.println(LED_stateCC1);
      } else {
        digitalWrite(LED_CC1, 0);
        LED_stateCC1 = 0;
        Serial.println("PRE module OFF");
        Serial.println(LED_stateCC1);
      }
    }
  
if (key == 'B') {
      if (LED_stateCC2 == 0) {
        digitalWrite(LED_CC2, 1);
        LED_stateCC2 = 1;
        Serial.println("DST module ON");
        Serial.println(LED_stateCC2);
      } else {
        digitalWrite(LED_CC2, 0);
        LED_stateCC2 = 0;
        Serial.println("DST module OFF");
        Serial.println(LED_stateCC2);
      }
    }
    if (key == 'C') {
      if (LED_stateCC3 == 0) {
        digitalWrite(LED_CC3, 1);
        LED_stateCC3 = 1;
        Serial.println("EQ module ON");
      } else {
        digitalWrite(LED_CC3, 0);
        LED_stateCC3 = 0;
        Serial.println("EQ module OFF");
      }
    }
    if (key == 'D') {
      if (LED_stateCC4 == 0) {
        digitalWrite(LED_CC4, 1);
        LED_stateCC4 = 1;
        Serial.println("MOD module ON");
      } else {
        digitalWrite(LED_CC4, 0);
        LED_stateCC4 = 0;
        Serial.println("MOD module OFF");
      }
    }
    if (key == '*') {
      if (LED_stateCC5 == 0) {
        digitalWrite(LED_CC5, 1);
        LED_stateCC5 = 1;
        Serial.println("DLY module ON");
      } else {
        digitalWrite(LED_CC5, 0);
        LED_stateCC5 = 0;
        Serial.println("DLY module OFF");
      }
    }
    if (key == '#') {
      if (LED_stateCC6 == 0) {
        digitalWrite(LED_CC6, 1);
        LED_stateCC6 = 1;
        Serial.println("RVB module ON");
      } else {
        digitalWrite(LED_CC6, 0);
        LED_stateCC6 = 0;
        Serial.println("RVB module OFF");
      }
    }

digitalWrite(LED_CC1, LED_stateCC1);
EEPROM.update(11, LED_stateCC1);

digitalWrite(LED_CC2, LED_stateCC2);
EEPROM.update(22, LED_stateCC2);

digitalWrite(LED_CC3, LED_stateCC3);
EEPROM.update(33, LED_stateCC3);

digitalWrite(LED_CC4, LED_stateCC4);
EEPROM.update(44, LED_stateCC4);

digitalWrite(LED_CC5, LED_stateCC5);
EEPROM.update(55, LED_stateCC5);

digitalWrite(LED_CC6, LED_stateCC6);
EEPROM.update(66, LED_stateCC6);

    switch (bank) {

      case 0:
        //selectbank = 0;
        if (key == '1') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 1");
          EEPROM.read(11);
          EEPROM.read(22);
          EEPROM.read(33);
          EEPROM.read(44);
          EEPROM.read(55);
          EEPROM.read(66);
        }
        if (key == '2') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 2");
          EEPROM.read(11);
          EEPROM.read(22);
          EEPROM.read(33);
          EEPROM.read(44);
          EEPROM.read(55);
          EEPROM.read(66);
        }
        if (key == '3') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 3");
          EEPROM.read(11);
          EEPROM.read(22);
          EEPROM.read(33);
          EEPROM.read(44);
          EEPROM.read(55);
          EEPROM.read(66);
        }
        if (key == '4') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 4");
          EEPROM.read(11);
          EEPROM.read(22);
          EEPROM.read(33);
          EEPROM.read(44);
          EEPROM.read(55);
          EEPROM.read(66);
        }
        if (key == '5') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 5");
          EEPROM.read(11);
          EEPROM.read(22);
          EEPROM.read(33);
          EEPROM.read(44);
          EEPROM.read(55);
          EEPROM.read(66);
        }
        if (key == '6') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 6");
          EEPROM.read(11);
          EEPROM.read(22);
          EEPROM.read(33);
          EEPROM.read(44);
          EEPROM.read(55);
          EEPROM.read(66);
        }
        if (key == '7') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 7");
          EEPROM.read(11);
          EEPROM.read(22);
          EEPROM.read(33);
          EEPROM.read(44);
          EEPROM.read(55);
          EEPROM.read(66);
        }
        if (key == '8') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 8");
          EEPROM.read(11);
          EEPROM.read(22);
          EEPROM.read(33);
          EEPROM.read(44);
          EEPROM.read(55);
          EEPROM.read(66);
        }
        break;

      case 1:
        //selectbank = 1;

        if (key == '1') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 9");
        }
        if (key == '2') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 10");
        }
        if (key == '3') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 11");
        }
        if (key == '4') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 12");
        }
        if (key == '5') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 13");
        }
        if (key == '6') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 14");
        }
        if (key == '7') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 15");
        }
        if (key == '8') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 16");
        }
        break;

      case 2:
        //selectbank = 2;

        if (key == '1') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 17");
        }
        if (key == '2') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 18");
        }
        if (key == '3') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 19");
        }
        if (key == '4') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 20");
        }
        if (key == '5') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 21");
        }
        if (key == '6') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 22");
        }
        if (key == '7') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 23");
        }
        if (key == '8') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 24");
        }
        break;

      case 3:
        //selectbank = 3;

        if (key == '1') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 25");
        }
        if (key == '2') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 26");
        }
        if (key == '3') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 27");
        }
        if (key == '4') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 28");
        }
        if (key == '5') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 29");
        }
        if (key == '6') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 30");
        }
        if (key == '7') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 31");
        }
        if (key == '8') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 32");
        }
        break;

      case 4:
        //selectbank = 4;

        if (key == '1') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 33");
        }
        if (key == '2') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 34");
        }
        if (key == '3') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 35");
        }
        if (key == '4') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 36");
        }
        if (key == '5') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 37");
        }
        if (key == '6') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 38");
        }
        if (key == '7') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 39");
        }
        if (key == '8') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 40");
        }
        break;

      case 5:
        //selectbank = 5;

        if (key == '1') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 41");
        }
        if (key == '2') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 42");
        }
        if (key == '3') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 43");
        }
        if (key == '4') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 44");
        }
        if (key == '5') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 45");
        }
        if (key == '6') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 46");
        }
        if (key == '7') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 47");
        }
        if (key == '8') {
          delay(delay_bounce);
          lcd.clear();
          lcd.setCursor(0, 1);
          lcd.print("preset 48");
        }
        break;
    }
  }
  
}

void checkLED_stateCC1() {
   Serial.println("LED status after restart: ");
   LED_stateCC1 = EEPROM.read(11);
   if(LED_stateCC1 == 1) {
    Serial.println ("ON");
    digitalWrite(LED_CC1, HIGH);
   } 
   if(LED_stateCC1 == 0) {
    Serial.println ("OFF");
    digitalWrite(LED_CC1, LOW);
   }
}

void checkLED_stateCC2() {
   Serial.println("LED status after restart: ");
   LED_stateCC2 = EEPROM.read(22);
   if(LED_stateCC2 == 1) {
    Serial.println ("ON");
    digitalWrite(LED_CC2, HIGH);
   } 
   if(LED_stateCC2 == 0) {
    Serial.println ("OFF");
    digitalWrite(LED_CC2, LOW);
   }
}

void checkLED_stateCC3() {
   Serial.println("LED status after restart: ");
   LED_stateCC3 = EEPROM.read(33);
   if(LED_stateCC3 == 1) {
    Serial.println ("ON");
    digitalWrite(LED_CC3, HIGH);
   } 
   if(LED_stateCC3 == 0) {
    Serial.println ("OFF");
    digitalWrite(LED_CC3, LOW);
   }
}

void checkLED_stateCC4() {
   Serial.println("LED status after restart: ");
   LED_stateCC4 = EEPROM.read(44);
   if(LED_stateCC4 == 1) {
    Serial.println ("ON");
    digitalWrite(LED_CC4, HIGH);
   } 
   if(LED_stateCC4 == 0) {
    Serial.println ("OFF");
    digitalWrite(LED_CC4, LOW);
   }
}

void checkLED_stateCC5() {
   Serial.println("LED status after restart: ");
   LED_stateCC5 = EEPROM.read(55);
   if(LED_stateCC5 == 1) {
    Serial.println ("ON");
    digitalWrite(LED_CC5, HIGH);
   } 
   if(LED_stateCC5 == 0) {
    Serial.println ("OFF");
    digitalWrite(LED_CC5, LOW);
   }
}

void checkLED_stateCC6() {
   Serial.println("LED status after restart: ");
   LED_stateCC6 = EEPROM.read(66);
   if(LED_stateCC6 == 1) {
    Serial.println ("ON");
    digitalWrite(LED_CC6, HIGH);
   } 
   if(LED_stateCC6 == 0) {
    Serial.println ("OFF");
    digitalWrite(LED_CC6, LOW);
   }
}