OPi.GPIO Orange Pi Zero, GPIO werkt niet

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import OPi.GPIO as GPIO
from time import sleep          # this lets us have a time delay
GPIO.setmode(GPIO.BOARD)        # set up BOARD GPIO numbering
GPIO.setwarnings(False)         # No more 'pin in use' errors
GPIO.setup(5, GPIO.IN)          # set pin X as input (button)

W=0
try:
    while True:                 # this will carry on until you hit CTRL+C
        if GPIO.input(5):       # if pin X == 1
            pass                # No use for
        else:
            W=W+1
            print (W, "Liter")

        sleep(0.1)              # wait 0.1 seconds

finally:                        # this block will run no matter how the try block exits
    print("Finally")

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import OPi.GPIO as GPIO
from time import sleep          # this lets us have a time delay
GPIO.setmode(GPIO.BOARD)        # set up BOARD GPIO numbering
GPIO.setwarnings(False)         # No more 'pin in use' errors
GPIO.setup(5, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)          # set pin X as input (button)
# Define a threaded callback function to run in another thread when events are detected  


def my_callback(channel):
    if GPIO.input(5):     # if port 5 == 1  
        print ("Up")  
    else:                  # if port 5 != 1  
        print ("Down") 

  
# when a changing edge is detected on port 5, regardless of whatever   
# else is happening in the program, the function my_callback will be run  

GPIO.add_event_detect(5, GPIO.BOTH, callback=my_callback)



try:
    while True:                 # this will carry on until you hit CTRL+C
        if GPIO.input(5):       # if pin X == 1
            pass


        sleep(0.1)              # wait 0.1 seconds
except KeyboardInterrupt:  
    GPIO.cleanup()       # clean up GPIO on CTRL+C exit  
GPIO.cleanup()           # clean up GPIO on normal exit  

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import OPi.GPIO as GPIO
from time import sleep          # this lets us have a time delay
GPIO.setmode(GPIO.BOARD)        # set up BOARD Pin GPIO numbering
GPIO.setwarnings(False)         # No more 'pin in use' errors
GPIO.setup(5, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) # Pin 5 set up as an input, pulled down on detection

W=0

try:
    while True:                             # this will carry on until you hit CTRL+C
        GPIO.wait_for_edge(5, GPIO.FALLING) # Wait for pin 5 go to low
        W=W+1                               # If Pin 5 is going low count one liter 
        print (W,"Liter")                   # Show me how well this works.
except KeyboardInterrupt:  
    GPIO.cleanup()       # clean up GPIO on CTRL+C exit  
GPIO.cleanup()           # clean up GPIO on normal exit  

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import time
import OPi.GPIO as GPIO
from time import sleep          # this lets us have a time delay
GPIO.setmode(GPIO.BOARD)        # set up BOARD Pin GPIO numbering
GPIO.setwarnings(False)         # No more 'pin in use' errors
GPIO.setup(5, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) # Pin 5 set up as an input, pulled down on detection


f = open("/water/Liter", "r")	# Read Liters on startup
wa=float(f.read())
f.close()

def datum():					# Format datum
	return format(time.strftime('%d-%m-%Y'))

def tijd():						# Format time
	return format(time.strftime('%H:%M:%S'))

wam=0							# Set and declare daily counter

while True:						# Run forever
	f = open("/water/Liter", "r")		# Read from liter
	wah=float(f.read())					# Declare and put liter in wah
	f.close()							# Close reading file
	GPIO.wait_for_edge(5, GPIO.FALLING) # Wait for pin 5 go to low
	wa=wa+1								# If Pin 5 is going low add one liter to counter
	wam=wam+1							# If Pin 5 is going low add one liter to daily counter

	if wa != wah:						# If wa not equal to wah then
		f = open("/water/Liter", 'w')	# open Liter file
		f.write(str(wa))				# write new wa value to Liter file
		f.close()						# close Liter file
		m3=round(float(wa)/1000, 3)		# Calculate wa liters to metric volume
		f = open("/water/M3", 'w')		# open metric file
		f.write(str(m3))				# write new metric value to metric file
		f.close()						# close metric file
		f = open("/water/Dagteller: "+str(datum()), 'w')	# Write daily file and consumption in
		f.write(str(wam))									# liters to daily file
		f.close												# Close writing file
	if tijd() == "00:00:00":								# If there is a new day then
		wam=0												# reset daily counter to zero
pass

if((water_sensor==high)&(old_watersensor==low)) {watercount++);
old_watersensor=watersensor;

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Watermeter with LJ18A3-8-Z/BX - 5V detector on Elster/Honeywell e.d. V200 watermeter.

import OPi.GPIO as GPIO			# IO pins acces for Python 
GPIO.setmode(GPIO.BOARD)		# set up BOARD Pin GPIO numbering
GPIO.setwarnings(False)			# No more 'pin in use' errors
GPIO.setup(5, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)	# Pin 5 set up as an input, pulled down on detection
f = open("/water/Liter", "r")			# Read from Liter on startup
wa=float(f.read())				# Declare wa in liters and set counter to last value
f.close()					# Close file reading

while True:					# Run forever
	GPIO.wait_for_edge(5, GPIO.FALLING)	# Wait for pin 5 go to low
	wa=wa+1					# If Pin 5 is going low add one liter to counter
	f = open("/water/Liter", 'w')		# open Liter file
	f.write(str(wa))			# write new wa value to Liter file
	f.close()				# close Liter file
	m3=round(float(wa)/1000, 3)		# Calculate wa liters to metric volume
	f = open("/water/M3", 'w')		# open metric file
	f.write(str(m3))			# write new metric value to metric file
	f.close()				# close metric file
pass