// Define segment pins
int segA = 2;
int segB = 3;
int segC = 4;
int segD = 5;
int segE = 6;
int segF = 7;
int segG = 8;
void setup() {
 // Set all segment pins as output
 pinMode(segA, OUTPUT);
 pinMode(segB, OUTPUT);
 pinMode(segC, OUTPUT);
 pinMode(segD, OUTPUT);
 pinMode(segE, OUTPUT);
 pinMode(segF, OUTPUT);
 pinMode(segG, OUTPUT);
}
void loop() {
 // Display 0
 displayDigit(0);
 delay(1000); // Wait 1 second
 // Display 1
 displayDigit(1);
 delay(1000); // Wait 1 second
 // Display 2
 displayDigit(2);
 delay(1000);
 // You can continue displaying more digits...
}
// Function to display digits 0-9 on a 7-segment display
void displayDigit(int digit) {
 switch(digit) {
 case 0: // Display 0: a, b, c, d, e, f
 digitalWrite(segA, HIGH);
 digitalWrite(segB, HIGH);
 digitalWrite(segC, HIGH);
 digitalWrite(segD, HIGH);
 digitalWrite(segE, HIGH);
 digitalWrite(segF, HIGH);
 digitalWrite(segG, LOW);
 break;
 case 1: // Display 1: b, c
 digitalWrite(segA, LOW);
 digitalWrite(segB, HIGH);
 digitalWrite(segC, HIGH);
 digitalWrite(segD, LOW);
 digitalWrite(segE, LOW);
 digitalWrite(segF, LOW);
 digitalWrite(segG, LOW);
 break;
 case 2: // Display 2: a, b, d, e, g
 digitalWrite(segA, HIGH);
 digitalWrite(segB, HIGH);
 digitalWrite(segC, LOW);
 digitalWrite(segD, HIGH);
 digitalWrite(segE, HIGH);
 digitalWrite(segF, LOW);
 digitalWrite(segG, HIGH);
 break;
 case 3: // Display 3: a, b, c, d, g
 digitalWrite(segA, HIGH);
 digitalWrite(segB, HIGH);
 digitalWrite(segC, HIGH);
 digitalWrite(segD, HIGH);
 digitalWrite(segE, LOW);
 digitalWrite(segF, LOW);
 digitalWrite(segG, HIGH);
 break;
 case 4: // Display 4: b, c, f, g
 digitalWrite(segA, LOW);
 digitalWrite(segB, HIGH);
 digitalWrite(segC, HIGH);
 digitalWrite(segD, LOW);
 digitalWrite(segE, LOW);
 digitalWrite(segF, HIGH);
 digitalWrite(segG, HIGH);
 break;
 case 5: // Display 5: a, c, d, f, g
 digitalWrite(segA, HIGH);
 digitalWrite(segB, LOW);
 digitalWrite(segC, HIGH);
 digitalWrite(segD, HIGH);
 digitalWrite(segE, LOW);
 digitalWrite(segF, HIGH);
 digitalWrite(segG, HIGH);
 break;
 case 6: // Display 6: a, c, d, e, f, g
 digitalWrite(segA, HIGH);
 digitalWrite(segB, LOW);
 digitalWrite(segC, HIGH);
 digitalWrite(segD, HIGH);
 digitalWrite(segE, HIGH);
 digitalWrite(segF, HIGH);
 digitalWrite(segG, HIGH);
 break;
 case 7: // Display 7: a, b, c
 digitalWrite(segA, HIGH);
 digitalWrite(segB, HIGH);
 digitalWrite(segC, HIGH);
 digitalWrite(segD, LOW);
 digitalWrite(segE, LOW);
 digitalWrite(segF, LOW);
 digitalWrite(segG, LOW);
 break;
 case 8: // Display 8: all segments
 digitalWrite(segA, HIGH);
 digitalWrite(segB, HIGH);
 digitalWrite(segC, HIGH);
 digitalWrite(segD, HIGH);
 digitalWrite(segE, HIGH);
 digitalWrite(segF, HIGH);
 digitalWrite(segG, HIGH);
 break;
 case 9: // Display 9: a, b, c, d, f, g
 digitalWrite(segA, HIGH);
 digitalWrite(segB, HIGH);
 digitalWrite(segC, HIGH);
 digitalWrite(segD, HIGH);
 digitalWrite(segE, LOW);
 digitalWrite(segF, HIGH);
 digitalWrite(segG, HIGH);
 break;
 }
}