from machine import Pin, PWM
import time,random

rLED = PWM(Pin(12))
gLED = PWM(Pin(13))
bLED = PWM(Pin(14))

while 1:
  rLED.duty(225)
  gLED.duty(0)
  bLED.duty(0)
  time.sleep(10)

  rLED.duty(0)
  gLED.duty(225)
  bLED.duty(0)
  time.sleep(10)