from machine import Pin
from time import sleep
led=Pin(0,Pin.OUT)
led2=Pin(2,Pin.OUT)
led3=Pin(3,Pin.OUT)
while True:
    led.on()
    led2.on()
    led3.on()
    sleep(1)
    led.off()
    led2.off()
    led3.off()
    sleep(1)
# PIN CONFIGURATION
# 0-22 : 23 
# 26,27,28 : ANALOG PIN
# VBUS : VOLTAGE INPUT PIN (3.3V)
# RGB LED : COM IS COMMON CONNECTED TO ANY GROUND PIN IF SELECTED CATHODE AT RGB