const int led2 =  2; //C
const int led3 =  3; //D
const int led4 =  4; //E
const int led5 =  5; //G
const int led6 =  6; //F
const int led7 =  7; //A
const int led8 =  8; //B

void setup() {
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);
  pinMode(led6, OUTPUT);
  pinMode(led7, OUTPUT);
  pinMode(led8, OUTPUT);
}

void loop() {
 int i = 1500;
   digitalWrite(led7, HIGH);
    delay(i);
    digitalWrite(led7, LOW);
    delay(i);
    digitalWrite(led8, HIGH);
    delay(i);
    digitalWrite(led8, LOW);
    delay(i);
    digitalWrite(led2, HIGH);
    delay(i);
    digitalWrite(led2, LOW);
    delay(i);
    digitalWrite(led3, HIGH);
    delay(i);
    digitalWrite(led3, LOW);
    delay(i);
    digitalWrite(led4, HIGH);
    delay(i);
    digitalWrite(led4, LOW);
    delay(i);
    digitalWrite(led6, HIGH);
    delay(i);
    digitalWrite(led6, LOW);
    delay(i);
    digitalWrite(led5, HIGH);
    delay(i);
    digitalWrite(led5, LOW);
    delay(i);
    
 // 0 
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);

delay(2000);

//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);

// 1 
    digitalWrite(led8, HIGH);
    digitalWrite(led2, HIGH);

delay(2000);

//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);

// 2 
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led3, HIGH);

delay(2000);

//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);

// 3 
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

delay(2000);

//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);


// 4 
    digitalWrite(led6, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led2, HIGH);

delay(2000);

//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);

// 5 
    digitalWrite(led7, HIGH);
    digitalWrite(led6, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

delay(2000);
   
//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);

// 6 
    digitalWrite(led7, HIGH);
    digitalWrite(led6, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led5, HIGH);

delay(2000);

//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);

// 7 
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led2, HIGH);

delay(2000);

//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);

// 8 
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);

delay(2000);

//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);   

// 9 
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

delay(2000);

//  Очистка всех сегментов 
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);

}