#define LED_PORT PORTA  // Define PORTA as LED output
#define LED_DDR DDRA    // Define Data Direction Register for PORTA

void setup() {
    LED_DDR = 0xFF;  // Set all PORTA pins as output (pins 22-29)
}

void loop() {
    // Turn on and turn off LEDs one by one in ascending order
    for (uint8_t i = 0; i < 8; i++) {
        LED_PORT = (1 << i);  // Turn on one LED at a time
        delay(1000);  // Delay for 1 second
        LED_PORT = 0x00;  // Turn off the LED
        delay(1000);  // Delay for 1 second before the next LED
    }
}