input_WHILE_POLL

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Input teste com polling usando while
# Programa fica em loop até executar CRTL+c ou kill no processo

import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BCM)

SWITCH = 23

GPIO.setup(SWITCH, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) #com pull-down via sw

while 1:
        while GPIO.input(SWITCH):
                print("Entrada em nivel alto")