Raspberry Pi 4 LED 灯闪烁仅闪烁约 9 次，而不是连续闪烁

Question

I have used the below Python code for Raspberry Pi 4 to have LED light blink continuously but I only blinks for around 10 times and stops. I need it to blink continuously.

import RPi.GPIO as GPIO
import time

redLED = 4

GPIO.setmode(GPIO.BCM)
GPIO.setup(redLED, GPIO.OUT)

try:
   while True:
      GPIO.output(redLED, GPIO.HIGH)
      time.sleep(0.5)
      GPIO.output(redLED, GPIO.LOW)
      time.sleep(0.5)

finally:
   GPIO.cleanup()

Answer 1

You could try setting up the GPIO channel in every iteration.

import RPi.GPIO as GPIO
import time

redLED = 4

GPIO.setmode(GPIO.BCM)

try:
   while True:
      GPIO.setup(redLED, GPIO.OUT)
      GPIO.output(redLED, True)
      time.sleep(0.5)

      GPIO.output(redLED, False)
      time.sleep(0.5)

finally:
   GPIO.cleanup()