Advance Automatic Railway Crossing System

#include<Servo.h>
#include<EEPROM.h>

#define segA A0  // connecting segment A to PIN2
#define segB 3  // connecting segment B to PIN3
#define segC 4  // connecting segment C to PIN4
#define segD 5  // connecting segment D to PIN5
#define segE 6  // connecting segment E to PIN6
#define segF 7  // connecting segment F to PIN7
#define segG 8  // connecting segment G to PIN8
#define red 9   // red pin
#define green 10 // green pin
#define speaker 12

int buttonPushCounter = 0;   // counter for the number of button presses
int buttonState = 0;         // current state of the button
int lastButtonState = 0;     // previous state of the button

Servo myservo;

const int button = 2; 

int di,du,count,a,t,y,z,u, value1, value2;
int l=0;
int b=0;


void setup(){
 Serial.begin(9600);
 pinMode(A1, INPUT);
 myservo.attach(11);
 for(a=3;a<=10;a++)
 {
  pinMode(a, OUTPUT);
 }

  pinMode(button, INPUT); 
  pinMode(A0, OUTPUT);
  pinMode(speaker,OUTPUT);
  
 attachInterrupt(digitalPinToInterrupt(button), bstate, HIGH);
  
}

void loop(){
 pOffroadOn();

 Serial.println(di);
 value1 = EEPROM.read(1);
 Serial.print("value is : " );
 Serial.println(value1);
 Serial.println(di);
 
 if(value1 == 1){
  roadOffpOn();
  delay(9000);
 }

 else if(value1 == 0){
  pOffroadOn();
  
 }
 
 EEPROM.update(1,0);

value2 = EEPROM.read(2);

Serial.print("value2 is:  ");
Serial.println(value2);

if(value2 == 1 && b == 0){
  pOffroadOn();
  Serial.println("button pressed in first cycle"); 
}

else if(value2 == 1 && b == 1){
  roadOffpOn();
  Serial.println("button pressed in second cycle");
}

else{
  pOffroadOn();
  Serial.println("button not pressed");
}

EEPROM.update(2,0);

 }
  
    
    
void trainAppear(){                // train appears
   ultra();
   if(di<=30){
   Train();
   }  
   }

  
  

    
       

    void timerOff(){                  // Timer off
    for(t=3;t<=8;t++){
    digitalWrite(t, LOW);
    }
    digitalWrite(A0, LOW);
    
    }



    void pOffroadOn(){                 // pedestrian off when road On
    digitalWrite(red, HIGH);
    digitalWrite(green, LOW);
    
    myservo.write(90);
    noTone(speaker);
    
    trainAppear();
    Timer();
}

  

  
    
    void roadOffpOn(){                    // road off when pedestrian on
  
    
    digitalWrite(red, LOW);
    //digitalWrite(green, HIGH);
    myservo.write(0);
    //speakerP();
    timerOff();
    noTone(speaker);
    //tone(speaker,1000);
    //trainAppear();
    greenG();
    
    
  }


   void bstate() {
   
    EEPROM.write(1,1);
    EEPROM.write(2,1);
    Serial.println("value return:    ");
  }


    void Timer(){                // Timer O
     switch (count)      
                {
               
                case 0 ://when count value is zero show”0” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, LOW);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
 
                case 1:// when count value is 1 show”1” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, HIGH);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
 
                case 2:// when count value is 2 show”2” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, LOW);
                digitalWrite(segE, LOW);
                digitalWrite(segF, LOW);
                digitalWrite(segG, LOW);
                break;
 
                case 3:// when count value is 3 show”3” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, LOW);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, HIGH);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
 
                case 4:// when count value is 4 show”4” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, LOW);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, LOW);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
 
                case 5:// when count value is 5 show”5” on disp
                digitalWrite(segA, LOW);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, LOW);
                digitalWrite(segE, LOW);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
 
                case 6:// when count value is 6 show”6” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, LOW);
                digitalWrite(segF, LOW);
                digitalWrite(segG, HIGH);
                break;
 
                case 7:// when count value is 7 show”7” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, LOW);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, HIGH);
                digitalWrite(segF, LOW);
                digitalWrite(segG, HIGH);
                break;
 
                case 8:// when count value is 8 show”8” on disp
                digitalWrite(segA, LOW);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, LOW);
                digitalWrite(segE, LOW);
                digitalWrite(segF, LOW);
                digitalWrite(segG, LOW);
                break;

                
                }
                if (count<10)
                {
                                count++;
                                delay(1000);///increment count integer for every second
                                
                                
                }
           else if (count==10)
                {
                                count=0;// if count integer value is equal to 10, reset it to zero.
                               
                                b = 1;                                
                }
                }


               
   void greenG(){
  for(y=0;y<=5;y++){
  digitalWrite(green, HIGH);
  delay(900);
  digitalWrite(green, LOW);
  delay(100);
  trainAppear();
  
 }

  for(u=0;u<=30;u++){
  digitalWrite(green, HIGH);
  delay(90);
  digitalWrite(green, LOW);
  delay(10);
  trainAppear();
 }
   }