How to use water flow sensor on Raspberry?

[tscodeler]

I'm trying to use this water flow sensor with raspberry:

https://www.adafruit.com/products/828

I'm using this python code to read the pulses:

!/usr/bin/env python

import RPi.GPIO as GPIO import time, sys

FLOW_SENSOR = 23

GPIO.setmode(GPIO.BCM) GPIO.setup(FLOW_SENSOR, GPIO.IN, pull_up_down = GPIO.PUD_DOWN)

global count count = 0

def countPulse(channel): global count count = count+1 print count

GPIO.add_event_detect(FLOW_SENSOR, GPIO.RISING, callback=countPulse)

while True: try: time.sleep(1) except KeyboardInterrupt: print '\ncaught keyboard interrupt!, bye' GPIO.cleanup() sys.exit()

Unfortunately, this code is not working properly and as I'm new with raspberry I don't know how to solve the problem.

I would like to know if is necessary to use another component in raspberry, like MCP3008 or another one.

If possible, send me how to wire the sensor cables is raspberry too.

[texy]

Please do not duplicate posts across different forums.
I'm locking this one and moving the other to the python forum.
Texy