simple_flow_test.py

#!/usr/bin/env python

#
# Flowmeter - read from the FT330 flow meter
# and determine the volume of a pour.
#
# Black to ground
# Red to 5V
# 10K pull-up from white to 5V
# White to GPIO pin 23
#

# Uses header pin 16 (GPIO 23), ground, and 5V.

import RPIO as GPIO

flowSensorPin = 23
GPIO.setmode(GPIO.BCM)
# GPIO.setup(flowSensorPin, GPIO.IN, pull_up_down = GPIO.PUD_DOWN)
GPIO.setup(flowSensorPin, GPIO.IN)

#
# Super simple code to test state transitions to ensure that the
# flow sensor is working.
#


while True:
  state = GPIO.input(flowSensorPin)
  if state == GPIO.HIGH:
    print "HIGH"
  else:
    print "                   low"