from machine import Pin
import utime

led1 = Pin(0, Pin.OUT) #GPIO pin 
led2 = Pin(1, Pin.OUT) 
led3 = Pin(2, Pin.OUT) 
led4 = Pin(3, Pin.OUT) 
led5 = Pin(4, Pin.OUT) 
led6 = Pin(5, Pin.OUT) 
led7 = Pin(6, Pin.OUT) 
led8 = Pin(7, Pin.OUT) 
led9 = Pin(8, Pin.OUT) 
led10 = Pin(9, Pin.OUT) 

while True:

    led1.value(1) #To Turn ON LED 
    utime.sleep(1)
    led1.value(0) #To Turn OFF LED
    led2.value(1)
    utime.sleep(1)
    led2.value(0)
    led3.value(1)
    utime.sleep(1)
    led3.value(0)
    led4.value(1) 
    utime.sleep(1)
    led4.value(0) 
    led5.value(1) 
    utime.sleep(1)
    led5.value(0) 
    led6.value(1) 
    utime.sleep(1)
    led6.value(0)
    led7.value(1) 
    utime.sleep(1)
    led7.value(0)
    led8.value(1) 
    utime.sleep(1)
    led8.value(0)
    led9.value(1) 
    utime.sleep(1)
    led9.value(0)
    led10.value(1) 
    utime.sleep(1)
    led10.value(0)