Script that controls events for leaving home and coming back using phone pings and wemo motion sensors.

imhome.py

import os
import subprocess
import time
import datetime
import ephem #pyephem integration for checking if lights need to remain on

o=ephem.Observer()
o.lat='30' #change to your latitude
o.long='-98' #change to your longitude
running=1
gone=1
lightoff=0
p= subprocess.call("wemo list",shell=True)

hostname="192.168.1.7" #change to phones local ip

while running == 1:

	response = os.system("ping -n 1 -w 2000 " + hostname) #change to ping -c 1 for linux

	if response == 0: #im home, phone was connected, and so we're going to check if the sun is up
		if gone == 1:
			now = datetime.datetime.now().time()
			s=ephem.Sun()
			s.compute()
			sunstart = ephem.localtime(o.next_rising(s))
			start = sunstart.time()
			sunstop = ephem.localtime(o.next_setting(s))
			stop = sunstop.time()
			if start <= now <= stop:
				print(hostname,'is up')
				print("Sun is up, no need for lights, turning them off in 30 seconds")
				time.sleep(30)
				p = subprocess.call("wemo switch \"Living Room Lamp\" off & wemo switch \"Hall Light\" off",shell=True) #change to name of wemo devices
				gone=0
				lightoff=0
				time.sleep(300)
			else:
				print(hostname,'is up')
				print(hostname,'Sun is down, leaving the lights on')
				lightoff=0
				gone=0
				time.sleep(300)
		else:
			print("already home")
			time.sleep(60)
	else: #im gone
		if lightoff== 0:
			#ping again to make sure a packet wasn't dropped.
			time.sleep(30)
			response2 = os.system("ping -n 1 -w 2000 " + hostname) #change to ping -c 1 for linux
			if response2 == 0:
				print("just a hickup")
				time.sleep(60)
			else:
				print(hostname, 'is down')
				print("turning off light")
				#you can add devices to turn off here, change the thermostat, whatever.
				p= subprocess.call("wemo switch \"Living Room Lamp\" off & wemo switch \"Hall Light\" off",shell=True) #change to name of wemo devices
				#process below controls an onkyo receiver in the living room using miracle2k's onkyo-eiscp
				#p= subprocess.call("onkyo --host 192.168.1.3 --port 60128 system-power=standby",shell=True)
				gone=1
				lightoff=1
				time.sleep(180)
				
		else:
			print(hostname, 'is down, light already turned off')
			
			#now we're going to run watch.py to monitor the front door wemo motion detector.
			#wifi would not connect quick enough on my phone to trigger lights to come on, so motion is used.
			p= subprocess.call("python watch.py wemo",shell=True) #change wemo to name of wemo motion device
			
			#motion detected, time to turn on the lights, set thermostat, welcome home, etc.
			p = subprocess.call("wemo switch \"Living Room Lamp\" on & wemo switch \"Hall Light\" on",shell=True) #change to name of wemo devices
			#p = subprocess.call("onkyo --host 192.168.1.3 --port 60128 system-power=on",shell=True)
			#time.sleep(1)
			#p = subprocess.call("onkyo --host 192.168.1.3 --port 60128 audio-selector=analog",shell=True)
			#time.sleep(1)
			#p = subprocess.call("plink -batch -pw password user@192.168.1.8 tts 'Welcome home... Let me know if you need anything'",shell=True)
			#p = subprocess.call("onkyo --host 192.168.1.3 --port 60128 audio-selector=hdmi",shell=True)
			
			#after motion has been detected, we are going to give the phone 60 seconds to connect.
			time.sleep(60)
			#if it connects, great... if not, sound the alarm!
			response3 = os.system("ping -n 1 -w 2000 " + hostname) #change to ping -c 1 for linux
			if response3 == 0:
				print("entry has been authorized")
				time.sleep(5)
			else:
				print("INTRUDER ALERT")
				#process below plays an intruder alert message from my raspberry pi
				#p = subprocess.call("onkyo --host 192.168.1.3 --port 60128 audio-selector=analog",shell=True)
				#p = subprocess.call("plink -batch -pw password user@192.168.1.8 tts 'Intruder alert! Intruder alert! Intruder alert! The Police have been notified. Engaging home defence systems.'",shell=True)
				time.sleep(5)

watch.py

import argparse
import sys
import subprocess
import time

from ouimeaux.environment import Environment
from ouimeaux.utils import matcher
from ouimeaux.signals import receiver, statechange, devicefound


def mainloop(name):
	matches = matcher(name)

	@receiver(devicefound)
	def found(sender, **kwargs):
		if matches(sender.name):
			print "Found device:", sender.name

	@receiver(statechange)
	def motion(sender, **kwargs):
		if matches(sender.name):
			print "{} state is {state}".format(
				sender.name, state="on" if kwargs.get('state') else "off")
			if kwargs.get('state'):
				print "motion detected"
				sys.exit(0)
			else:
				print "do nothing"


	env = Environment(with_cache=False)
	try:
		env.start()
		env.discover(10)
		env.wait()
	except (KeyboardInterrupt, SystemExit):
		print "Goodbye!"
		sys.exit(0)


if __name__ == "__main__":
	parser = argparse.ArgumentParser("Motion notifier")
	parser.add_argument("name", metavar="NAME",
						help="Name (fuzzy matchable)"
							 " of the Motion to detect")
	args = parser.parse_args()
	mainloop(args.name)