#include <Keypad.h>

const byte ROWS = 4; //four rows
const byte COLS = 3; //three columns
char keys[ROWS][COLS] = {
  {'1','2','3'},
  {'4','5','6'},
  {'7','8','9'},
  {'*','0','#'}
};
byte rowPins[ROWS] = {5, 4, 3, 2}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {8, 7, 6}; //connect to the column pinouts of the keypad

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

static char accesscode[7] = {'7', '3', '5', '5', '6', '0', '8'};
static char code[7] = {'0', '0', '0', '0', '0', '0', '0'};
int i;
int ledr = 13;
int pot = A0;
int potval = 0;
int relais1 = 14;
int relais2 = 15;

void setup(){
  Serial.begin(9600);
  pinMode(ledr, OUTPUT);
  pinMode(relais1, OUTPUT);
  pinMode(relais2, OUTPUT);
  pinMode(mos, OUTPUT);
}

void loop(){
  potval = analogRead(pot);
  Serial.println(potval);
  char key = keypad.getKey();
  int j = 0;
  if(key){
    code[i] = key;
    Serial.println(code[i]);
    i = i + 1;
    if(i == 7){
      while(code[j] == accesscode[j]){
        j = j + 1;
        if(j == 7){
          Serial.print("Code bon.");
          digitalWrite(relais1, HIGH);
          digitalWrite(relais2, LOW);
          delay(7000);
          digitalWrite(relais1, LOW);
          delay(1000);
          digitalWrite(relais2, HIGH);
          delay(7000);
          digitalWrite(relais2, LOW);
          delay(1000);
        }
        else if(j != 7){
          char code[7] = {'0', '0', '0', '0', '0', '0', '0'};
        }
      }
    }
  }
  if(potval > 485){
    digitalWrite(ledr, LOW);
  }
  /**/
}