#define SAVEN_A 12
#define SAVEN_B 14
#define SAVEN_C 25
#define SAVEN_D 26
#define SAVEN_E 27
#define SAVEN_F 32
#define SAVEN_G 33
#define SAVEN_DP 13

#define PUSHBUTTON 4


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(SAVEN_A, OUTPUT);
  pinMode(SAVEN_B, OUTPUT);
  pinMode(SAVEN_C, OUTPUT);
  pinMode(SAVEN_D, OUTPUT);
  pinMode(SAVEN_E, OUTPUT);
  pinMode(SAVEN_F, OUTPUT);
  pinMode(SAVEN_G, OUTPUT);
  pinMode(SAVEN_DP, OUTPUT);

  pinMode(PUSHBUTTON, INPUT);

  digitalWrite(SAVEN_A, HIGH);
  digitalWrite(SAVEN_B, HIGH);
  digitalWrite(SAVEN_C, HIGH);
  digitalWrite(SAVEN_D, HIGH);
  digitalWrite(SAVEN_E, HIGH);
  digitalWrite(SAVEN_F, HIGH);
  digitalWrite(SAVEN_G, LOW);

}

void loop() {
  // put your main code here, to run repeatedly:

  static int currentDigit = 0;

   if (digitalRead(PUSHBUTTON) == LOW) { 
    delay(160);

      if (digitalRead(PUSHBUTTON) == LOW) {
 
        if (currentDigit == 0) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      } else if (currentDigit == 1) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      } else if (currentDigit == 2) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      } else if (currentDigit == 3) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      } else if (currentDigit == 4) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      } else if (currentDigit == 5) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      } else if (currentDigit == 6) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      } else if (currentDigit == 7) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      } else if (currentDigit == 8) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      } else if (currentDigit == 9) {
          digitalWrite(SAVEN_A, LOW);
          digitalWrite(SAVEN_B, LOW);
          digitalWrite(SAVEN_C, LOW);
          digitalWrite(SAVEN_D, LOW);
          digitalWrite(SAVEN_E, LOW);
          digitalWrite(SAVEN_F, LOW);
          digitalWrite(SAVEN_G, LOW);
          digitalWrite(SAVEN_DP, LOW);
      }
      

        currentDigit = (currentDigit + 1) % 10;

    
       if (currentDigit == 0) {
        digitalWrite(SAVEN_A, HIGH);
        digitalWrite(SAVEN_B, HIGH);
        digitalWrite(SAVEN_C, HIGH);
        digitalWrite(SAVEN_D, HIGH);
        digitalWrite(SAVEN_E, HIGH);
        digitalWrite(SAVEN_F, HIGH);
        digitalWrite(SAVEN_G, LOW);
      } else if (currentDigit == 1) {
        digitalWrite(SAVEN_A, LOW);
        digitalWrite(SAVEN_B, HIGH);
        digitalWrite(SAVEN_C, HIGH);
        digitalWrite(SAVEN_D, LOW);
        digitalWrite(SAVEN_E, LOW);
        digitalWrite(SAVEN_F, LOW);
        digitalWrite(SAVEN_G, LOW);
      } else if (currentDigit == 2) {
        digitalWrite(SAVEN_A, HIGH);
        digitalWrite(SAVEN_B, HIGH);
        digitalWrite(SAVEN_C, LOW);
        digitalWrite(SAVEN_D, HIGH);
        digitalWrite(SAVEN_E, HIGH);
        digitalWrite(SAVEN_F, LOW);
        digitalWrite(SAVEN_G, HIGH);
      } else if (currentDigit == 3) {
        digitalWrite(SAVEN_A, HIGH);
        digitalWrite(SAVEN_B, HIGH);
        digitalWrite(SAVEN_C, HIGH);
        digitalWrite(SAVEN_D, HIGH);
        digitalWrite(SAVEN_E, LOW);
        digitalWrite(SAVEN_F, LOW);
        digitalWrite(SAVEN_G, HIGH);
      } else if (currentDigit == 4) {
        digitalWrite(SAVEN_A, LOW);
        digitalWrite(SAVEN_B, HIGH);
        digitalWrite(SAVEN_C, HIGH);
        digitalWrite(SAVEN_D, LOW);
        digitalWrite(SAVEN_E, LOW);
        digitalWrite(SAVEN_F, HIGH);
        digitalWrite(SAVEN_G, HIGH);
      } else if (currentDigit == 5) {
        digitalWrite(SAVEN_A, HIGH);
        digitalWrite(SAVEN_B, LOW);
        digitalWrite(SAVEN_C, HIGH);
        digitalWrite(SAVEN_D, HIGH);
        digitalWrite(SAVEN_E, LOW);
        digitalWrite(SAVEN_F, HIGH);
        digitalWrite(SAVEN_G, HIGH);
      } else if (currentDigit == 6) {
        digitalWrite(SAVEN_A, HIGH);
        digitalWrite(SAVEN_B, LOW);
        digitalWrite(SAVEN_C, HIGH);
        digitalWrite(SAVEN_D, HIGH);
        digitalWrite(SAVEN_E, HIGH);
        digitalWrite(SAVEN_F, HIGH);
        digitalWrite(SAVEN_G, HIGH);
      } else if (currentDigit == 7) {
        digitalWrite(SAVEN_A, HIGH);
        digitalWrite(SAVEN_B, HIGH);
        digitalWrite(SAVEN_C, HIGH);
        digitalWrite(SAVEN_D, LOW);
        digitalWrite(SAVEN_E, LOW);
        digitalWrite(SAVEN_F, LOW);
        digitalWrite(SAVEN_G, LOW);
      } else if (currentDigit == 8) {
        digitalWrite(SAVEN_A, HIGH);
        digitalWrite(SAVEN_B, HIGH);
        digitalWrite(SAVEN_C, HIGH);
        digitalWrite(SAVEN_D, HIGH);
        digitalWrite(SAVEN_E, HIGH);
        digitalWrite(SAVEN_F, HIGH);
        digitalWrite(SAVEN_G, HIGH);
      } else if (currentDigit == 9) {
        digitalWrite(SAVEN_A, HIGH);
        digitalWrite(SAVEN_B, HIGH);
        digitalWrite(SAVEN_C, HIGH);
        digitalWrite(SAVEN_D, HIGH);
        digitalWrite(SAVEN_E, LOW);
        digitalWrite(SAVEN_F, HIGH);
        digitalWrite(SAVEN_G, HIGH);
      }


      while (digitalRead(PUSHBUTTON) == LOW) {
        
      }

  delay(160); // this speeds up the simulation
      }
   }
}