from machine import Pin
from utime import sleep, sleep_ms

led_r = Pin(14, Pin.OUT)
led_a = Pin(26, Pin.OUT)
led_v = Pin(25, Pin.OUT)

while True:
    led_r.on()
    led_a.off()
    led_v.off()
    sleep(1)
    led_r.off()
    led_a.on()
    led_v.off()
    sleep(1)
    led_r.off()
    led_a.off()
    led_v.on()
    sleep(1)