print("Hello, ESP32! LED Bar Demo")

from machine import Pin
from time import sleep


#####################################
###### PIN CONFIGURATIONS
# Replace these with your actual GPIO pin numbers
led_bar_pins = [19, 18, 5, 17, 16, 4, 0, 2, 15, 8]  # Example GPIOs

# Create Pin objects for each LED
led_bar = [Pin(pin, Pin.OUT) for pin in led_bar_pins]
#####################################

###### SUBROUTINE FOR LED BAR
def sub_led_bar():
    # Forward direction
    for pin in led_bar:
        pin.on()
        sleep(0.05)
        pin.off()

    # Reverse direction
    for pin in reversed(led_bar):
        pin.on()
        sleep(0.05)
        pin.off()

###### MAIN LOOP
def main():
    while True:
        sub_led_bar()

if __name__ == '__main__':
    main()