import machine
import utime

# Configure pins for Trigger and Echo
trigger = machine.Pin(27, machine.Pin.OUT)
echo = machine.Pin(26, machine.Pin.IN)

# Function to measure distance
def measure_distance():
    trigger.value(0)
    utime.sleep_us(2)
    trigger.value(1)
    utime.sleep_us(10)
    trigger.value(0)
    
    while echo.value() == 0:
        pulse_start = utime.ticks_us()
    while echo.value() == 1:
        pulse_end = utime.ticks_us()
    
    pulse_duration = utime.ticks_diff(pulse_end, pulse_start)
    distance = (pulse_duration * 0.0343) / 2
    return round(distance)

# Loop to measure and display distance
while True:
    try:
        distance = measure_distance()
        print("Distance: {} cm".format(distance))
        utime.sleep(1)
    except Exception as e:
        print("Error:", e)