#write a code to implement the micropython script for reverse parking sensor and led intensitry will increase when object is near

import machine
from machine import Pin
import time

Trigger = Pin(12, Pin.OUT)
Echo = Pin(14, Pin.IN)

led = Pin(23, Pin.OUT)

threshold_distance_cm = 20

def measure_distance():
    Trigger.value(0)
    time.sleep_us(2)
    Trigger.value(1)
    time.sleep_us(10)
    Trigger.value(0)
    
    total_time = machine.time_pulse_us(Echo, 1)
    
    distance = (total_time * 0.034) / 2
    
    return distance

while True:
    distance = measure_distance()
    print("Distance in cm:", distance)
    
    
    if distance < threshold_distance_cm:
        
        print("Object detected! Reverse to avoid collision.")
        led.on()  
    else:
        led.off()  
        
    time.sleep(2)