Arduino code for Cooler Buddy

Fridge_Protector.ino

v#include <Servo.h>

int l = 0;
int light1 = 11;
int light2 = 10;
int light3 = 9;
int light4 = 8;
int light5 = 7;
int button1 = 2;
int button2 = 3;
int button3 = 4;
int button4 = 5;
int button5 = 6;
int greenLight = 12;
Servo lock;

String pass = "22222";
int angleLock = 120;
int angleUnlock = 72;
boolean isUnlocked = false;
String passTry = "";

void setup() {
  Serial.begin(9600);
  pinMode(light1, OUTPUT);
  pinMode(light2, OUTPUT);
  pinMode(light3, OUTPUT);
  pinMode(light4, OUTPUT);
  pinMode(light5, OUTPUT);
  pinMode(button1, INPUT);
  pinMode(button2, INPUT);
  pinMode(button3, INPUT);
  pinMode(button4, INPUT);
  pinMode(button5, INPUT);
  pinMode(greenLight, OUTPUT);
  lock.attach(13);
Serial.println("done with setup");
}

void changeState() {
  Serial.println("change state");
  if (isUnlocked) {
    lock.write(angleLock);
  } else {
    lock.write(angleUnlock);
  }
  isUnlocked = !isUnlocked;
}

void reset(){
  digitalWrite(light5, LOW);
  digitalWrite(light4, LOW);
  digitalWrite(light3, LOW);
  digitalWrite(light2, LOW);
  digitalWrite(light1, LOW);
  digitalWrite(greenLight, LOW);
  passTry = "";
  l = 0;
  while(digitalRead(button1)){}
  while(digitalRead(button2)){}
  while(digitalRead(button3)){}
  while(digitalRead(button4)){}
  while(digitalRead(button5)){}
}

void loop() {
  if (l == 5) {
    Serial.println(passTry);
    if (passTry.equals(pass)) {
      digitalWrite(greenLight, HIGH);
      changeState();
      //delay(1000);
      Serial.println("l");
      //while (button1 != HIGH || button2 != HIGH || button3 != HIGH || button4 != HIGH || button5 != HIGH){
          while(true){ 
            if(digitalRead(button1) || digitalRead(button2) || digitalRead(button3) || digitalRead(button4) || digitalRead(button5)) {
          changeState();
          break;
          }
        }
      //}
    } else {
     delay(300);
    }
    reset();
  }

  if (digitalRead(button1)) {
    l++;
    passTry = passTry + "1";
    Serial.println("button 1");
    while(digitalRead(button1)){}
  } 
  if (digitalRead(button2)) {
    l++;
    passTry = passTry + "2";
    Serial.println("button 2");
    while(digitalRead(button2)){}
  } 
  if (digitalRead(button3)) {
    l++;
    passTry = passTry + "3";
    Serial.println("button 3");
    while(digitalRead(button3)){}
  } 
  if (digitalRead(button4)) {
    l++;
    passTry = passTry + "4";
    Serial.println("button 4");
    while(digitalRead(button4)){}
  } 
  if (digitalRead(button5)) {
    l++;
    passTry = passTry + "5";
    Serial.println("button 5");
    while(digitalRead(button5)){}
  }

  switch (l) {
    case 5: digitalWrite(light5, HIGH);
    case 4: digitalWrite(light4, HIGH);
    case 3: digitalWrite(light3, HIGH);
    case 2: digitalWrite(light2, HIGH);
    case 1: digitalWrite(light1, HIGH);
  }
}