import machine
from machine import Pin,Timer
import time
import random

led1=Pin(1,Pin.OUT)
led2=Pin(5,Pin.OUT)
led3=Pin(9,Pin.OUT)

while True :
    a=random.uniform(0,1)
    print(a)
    if(a>0.75 and a<=1) :
       	 led1.on()
         time.sleep(5)
         led1.off()
    elif(a>0.5 and a<=0.75) :
         led2.on()
         time.sleep(5)
         led2.off()
    else :
        led3.on()
        time.sleep(5)
        led3.off()
    time.sleep(1)