from machine import Pin, time_pulse_us
import utime

TRIG = Pin(6, Pin.OUT)
ECHO = Pin(7, Pin.IN)

def measure_distance():
    TRIG.low()
    utime.sleep_us(2)
    TRIG.high()
    utime.sleep_us(10)
    TRIG.low()

    duration = time_pulse_us(ECHO, 1, 30000)  # waktu HIGH pada echo (µs)
    distance = (duration * 0.0343) / 2        # konversi ke cm
    return distance

while True:
    dist = measure_distance()
    print("Jarak: {:.2f} cm".format(dist))
    utime.sleep(1)