from machine import Pin
from time import sleep

led_merah = Pin(21, Pin.OUT)
led_hijau = Pin(17, Pin.OUT)  
led_biru = Pin(16, Pin.OUT)    

button_merah = Pin(18, Pin.IN)
button_hijau = Pin(19, Pin.IN)
button_biru = Pin(20, Pin.IN)

while True:
    if button_merah.value() == 1:
        led_merah.on()
        sleep(0.1)
    else:
        led_merah.off()
    
    if button_hijau.value() == 1:
        led_hijau.on()
        sleep(0.1)
    else:
        led_hijau.off()

    if button_biru.value() == 1:
        led_biru.on()
        sleep(0.1)
    else:
        led_biru.off()