int seg_a = 2;
int seg_b = 3;
int seg_c = 4;
int seg_d = 5;
int seg_e = 6;
int seg_f = 7;
int seg_g = 8;


void setup() {
 
  pinMode(seg_a, OUTPUT);
  pinMode(seg_b, OUTPUT);
  pinMode(seg_c, OUTPUT);
  pinMode(seg_d, OUTPUT);
  pinMode(seg_e, OUTPUT);
  pinMode(seg_f, OUTPUT);
  pinMode(seg_g, OUTPUT);

}

void loop() {

digitalWrite(seg_a, HIGH);
digitalWrite(seg_b, HIGH);
digitalWrite(seg_c, LOW);
digitalWrite(seg_d, LOW);
digitalWrite(seg_e, HIGH);
digitalWrite(seg_f, HIGH);
digitalWrite(seg_g, HIGH);


delay(2000);
digitalWrite(seg_a, HIGH);
digitalWrite(seg_b, HIGH);
digitalWrite(seg_c, HIGH);
digitalWrite(seg_d, LOW);
digitalWrite(seg_e, HIGH);
digitalWrite(seg_f, HIGH);
digitalWrite(seg_g, HIGH);
delay(2000);
}