from machine import Pin,PWM

from time import sleep

# pin Configuration
ledb = Pin(18, Pin.OUT)

ledr = Pin(2, Pin.OUT)

ledg = Pin(3, Pin.OUT)






#while True: #old method no function
  # led.on()
  # sleep(1)
  # led.off()
  # sleep(1)

  # ledr.on()
  # sleep(1)
  # ledr.off()
  # sleep(1)


  # ledg.on()
  # sleep(1)
  # ledg.off()
  # sleep(1)

  # use function





def ledBlink(led): #first part : create function
    led.on()
    sleep(1)
    led.off()
    sleep(1)


def buzzer(): #first part : create function
  buzzer = PWM(Pin(16))
  buzzer.freq(500)
  buzzer.duty_u16(1000)
  sleep(1)
  buzzer.duty_u16(0)
while True:  #second part : run function
    ledBlink(ledb)
    ledBlink(ledr)
    ledBlink(ledg)
    ledBlink(ledr)
    buzzer()
    ledBlink(ledg)