from machine import Pin
from utime import sleep

sleep(0.01) # Wait for USB to connect
print("Hello, PiCo")

led = Pin(21, Pin.OUT)
led_2 = Pin(0, Pin.OUT)
btn = Pin(16, Pin.IN)

while True:
    led.value(1)
    led_2.value(0)
    sleep(0.3)
    led.value(0)
    led_2.value(1)
    sleep(0.3)

    print(btn.value())