def measure_distance(trig_pin, echo_pin, num_readings=5):
    distances = []

    for _ in range(num_readings):
        GPIO.output(trig_pin, True)
        time.sleep(0.00001)
        GPIO.output(trig_pin, False)

        pulse_start = time.time()
        pulse_end = time.time()

        while GPIO.input(echo_pin) == 0:
            pulse_start = time.time()

        while GPIO.input(echo_pin) == 1:
            pulse_end = time.time()

        pulse_duration = pulse_end - pulse_start
        distance = pulse_duration * 17150  # Speed of sound = 34300 cm/s
        distances.append(distance)

    avg_distance = sum(distances) / num_readings
    return avg_distance


import RPi.GPIO as GPIO
import time
import pygame

# ... (rest of the code remains the same)

try:
    people_inside = 0  # Counter for people inside the room
    entry_cooldown = False  # Flag to prevent rapid multiple entries

    while True:
        enter_distance = measure_distance(ENTER_TRIG_PIN, ENTER_ECHO_PIN, num_readings=5)
        exit_distance = measure_distance(EXIT_TRIG_PIN, EXIT_ECHO_PIN, num_readings=5)

        # Detecting if someone is within 30 cm range
        if enter_distance < 30 and not entry_cooldown:
            people_inside += 1
            entry_cooldown = True
            time.sleep(2)  # Cooldown period, adjust as needed

        if exit_distance < 30 and people_inside > 0:
            people_inside -= 1

        if people_inside > 0:
            play_audio()
            control_led_strip(GPIO.HIGH)
        else:
            stop_audio()
            control_led_strip(GPIO.LOW)

        if not (enter_distance < 30):
            entry_cooldown = False

except KeyboardInterrupt:
    GPIO.cleanup()
    pygame.mixer.quit()