// Define the pins for the LEDs
const int led1 = 2;  // LSB (least significant bit)
const int led2 = 3;
const int led3 = 4;  // MSB (most significant bit)

void setup() {
  // Set LED pins as outputs
  Serial.begin(115200);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
}

void loop() {
  // Example number to display (in range 0-7)
  for (int number = 0; number < 8; number++) {
    Serial.println(number);
    // int number = 5;  // Change this value to test other numbers

    // Display the binary representation of the number
    digitalWrite(led1, number & 0x01);  // LSB
    digitalWrite(led2, (number >> 1) & 0x01);
    digitalWrite(led3, (number >> 2) & 0x01);
    delay(500);  // Wait for 1 second
  }

  
}