from machine import Pin
import time

led1 = Pin(16, Pin.OUT)
led2 = Pin(17, Pin.OUT)

button1 = Pin(5, Pin.IN)
button2 = Pin(4, Pin.IN)

while True:
    if button1.value():
        led1.on()
        led2.on()
        time.sleep(1.0)
        led1.off()
        led2.off()
        time.sleep(0.5)
   
    elif button2.value():
        led1.on()
        led2.off()
        time.sleep(0.5)
        led1.off()
        led2.on()
        time.sleep(0.5)
        
    else:
        led1.off()
        led2.off()