from machine import *
from time import *

red = Pin(7, Pin.OUT)  
yellow = Pin(26, Pin.OUT)   
green = Pin(2, Pin.OUT)    

while True:
  
    red.value(1)
    yellow.value(0)
    green.value(0)
    print("RED ON")
    sleep(5)

  
    red.value(0)
    yellow.value(1)
    green.value(0)
    print("YELLOW ON")
    sleep(2)


    red.value(0)
    yellow.value(0)
    green.value(1)
    print("GREEN ON")
    sleep(5)


    for i in range(3):
        green.value(0)
        print("GREEN OFF")
        sleep(0.5)
        green.value(1)
        print("GREEN ON")
        sleep(0.5)

 
    red.value(0)
    yellow.value(1)
    green.value(0)
    print("YELLOW ON")
    sleep(2)