from machine import Pin
import time
led_pin1 = Pin(2,Pin.OUT)
led_pin2 = Pin(16,Pin.OUT)
pin_PB1 = Pin(25,Pin.IN)
pin_PB2 = Pin(27,Pin.IN)
while True:
val_PB1=pin_PB1.value()
val_PB2=pin_PB2.value()
if val_PB1 == 1 and val_PB2 == 0:
led_pin1.on()
led_pin2.off()
elif val_PB1 == 0 and val_PB2 == 1:
led_pin1.off()
led_pin2.on()
else:
led_pin1.off()
led_pin2.off()