import machine as gpio
import time 
led1 = gpio.Pin(3, gpio.Pin.OUT)
led2 = gpio.Pin(4, gpio.Pin.OUT)
led3 = gpio.Pin(5, gpio.Pin.OUT)
def set_rd(RED):
    led1.value(RED)
def set_gr(GREEN):
    led2.value(GREEN)
def set_bl(BLUE):
    led3.value(BLUE)

while True:
    set_rd(1)
    set_gr(1) 
    set_bl(1) 
    time.sleep(0.50)  
    set_rd(0)
    time.sleep(0.50)
    set_gr(0)
    time.sleep(0.50) 
    set_bl(0)  
    time.sleep(0.50)