2018 Oct 13, 01:30 PM
Hi Dan,
Sorry I'm new to this and willing to learn. I was asking when the rain sensor has detected rain, excluding the use of any station, to be able to run anytime, and to use a spare gpio to energize a relay to close the drain actuators. Sorry but I have very limited experience with python as well, but would it be easier to create a plugin from proto.py?
With the water level, I was asking to have a constant readout of the water level on the home page down near the cpu temp. I'm not sure how to add this code (below) as a plugin to use and then have it as a selection to stop stations once water level is to low.
Best regards,
Ben
Sorry I'm new to this and willing to learn. I was asking when the rain sensor has detected rain, excluding the use of any station, to be able to run anytime, and to use a spare gpio to energize a relay to close the drain actuators. Sorry but I have very limited experience with python as well, but would it be easier to create a plugin from proto.py?
With the water level, I was asking to have a constant readout of the water level on the home page down near the cpu temp. I'm not sure how to add this code (below) as a plugin to use and then have it as a selection to stop stations once water level is to low.
Code:
#!/usr/bin/python
#+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
#|R|a|s|p|b|e|r|r|y|P|i|-|S|p|y|.|c|o|.|u|k|
#+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
#
# ultrasonic_2.py
# Measure distance using an ultrasonic module
# in a loop.
#
# Author : Matt Hawkins
# Date : 28/01/2013
# -----------------------
# Import required Python libraries
# -----------------------
import time
import RPi.GPIO as GPIO
# -----------------------
# Define some functions
# -----------------------
def measure():
# This function measures a distance
GPIO.output(GPIO_TRIGGER, True)
time.sleep(0.00001)
GPIO.output(GPIO_TRIGGER, False)
start = time.time()
while GPIO.input(GPIO_ECHO)==0:
start = time.time()
while GPIO.input(GPIO_ECHO)==1:
stop = time.time()
elapsed = stop-start
distance = (elapsed * 34300)/2
return distance
def measure_average():
# This function takes 3 measurements and
# returns the average.
distance1=measure()
time.sleep(0.1)
distance2=measure()
time.sleep(0.1)
distance3=measure()
distance = distance1 + distance2 + distance3
distance = distance / 3
return distance
# -----------------------
# Main Script
# -----------------------
# Use BCM GPIO references
# instead of physical pin numbers
GPIO.setmode(GPIO.BCM)
# Define GPIO to use on Pi
GPIO_TRIGGER = 23
GPIO_ECHO = 24
print "Ultrasonic Measurement"
# Set pins as output and input
GPIO.setup(GPIO_TRIGGER,GPIO.OUT) # Trigger
GPIO.setup(GPIO_ECHO,GPIO.IN) # Echo
# Set trigger to False (Low)
GPIO.output(GPIO_TRIGGER, False)
# Wrap main content in a try block so we can
# catch the user pressing CTRL-C and run the
# GPIO cleanup function. This will also prevent
# the user seeing lots of unnecessary error
# messages.
try:
while True:
distance = measure_average()
print "Distance : %.1f" % distance
time.sleep(1)
except KeyboardInterrupt:
# User pressed CTRL-C
# Reset GPIO settings
GPIO.cleanup()Best regards,
Ben