Troubleshooting • Raspberry Pi 4: Python - RuntimeError: Error waiting for edge

Code:

import RPi.GPIO as GPIOimport timeGPIO.cleanup()AMPLIFICADOR_INPUT_PIN = 23GPIO.setmode(GPIO.BCM)GPIO.setup(AMPLIFICADOR_INPUT_PIN, GPIO.IN)MAX_PULSE_COUNT = 10MOTION_SENSITIVITY = 10def count_frequency(GPIO_pin, max_pulse_count=10, ms_timeout=50):    start_time = time.time()    pulse_count = 0    for count in range(max_pulse_count):        edge_detected = GPIO.wait_for_edge(GPIO_pin, GPIO.FALLING, timeout=ms_timeout)        if edge_detected is not None:            pulse_count += 1    duration = time.time() - start_time     frequency = pulse_count / duration        return frequencywhile True:    doppler_freq = count_frequency(AMPLIFICADOR_INPUT_PIN)    speed = doppler_freq / float (31.36)    print (speed)    if (speed>2):        print ('high Speed'+ "Your speed="+ str(speed) +'Mph')            if doppler_freq < MOTION_SENSITIVITY:        print("No motion was detected")    else:        print("Motion was detected, Doppler frequency was: {0}".format(doppler_freq))        GPIO.cleanup()