from machine import Pin
from time import sleep

a=19
b=15
c=2
d=18
e=4
f=5
g=21
h=22


# Define the LED pin (in this case, GPIO 2)
led1=Pin(b,Pin.OUT)
led2=Pin(a,Pin.OUT)
led3=Pin(c,Pin.OUT)
led4=Pin(d,Pin.OUT)
led5=Pin(e,Pin.OUT)
led6=Pin(f,Pin.OUT)
led7=Pin(g,Pin.OUT)
led8=Pin(h,Pin.OUT)
# Blink the LED
while True:
    led1.on()  # Turn on the LED
    sleep(0.03)  # Wait for 1 second
    led1.off()  # Turn off the LED
    sleep(0.03) 
    led6.on() 
    led4.on() # Turn on the LED
    sleep(0.03)  # Wait for 1 second
    led6.off()
    led4.off()  # Turn off the LED
    sleep(0.03) 
    led3.on() 
    led7.on() # Turn on the LED
    sleep(0.03)  # Wait for 1 second
    led3.off()
    led7.off()  # Turn off the LED
    sleep(0.03)  
    led5.on() 
    led8.on() # Turn on the LED
    sleep(0.03)  # Wait for 1 second
    led5.off()
    led8.off()  # Turn off the LED
    sleep(0.03)
    led2.on()  # Turn on the LED
    sleep(0.03)  # Wait for 1 second
    led2.off()  # Turn off the LED
    sleep(0.03)