Part 3 : Create a "Daemon" for alarm
in the folder "cd /etc/init.d/". Create a file "alarme.sh"
put the following code inside :
#!/bin/sh
### BEGIN INIT INFO
# Provides: myservice
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Put a short description of the service here
# Description: Put a long description of the service here
### END INIT INFO
# Change the next 3 lines to suit where you install your script and what you wa$
DIR=/myScriptPython
DAEMON=$DIR/Alarme.py
DAEMON_NAME=alarme
#PATH=/usr/sbin:/usr/bin:/sbin:/bin:/myScriptPython
# Add any command line options for your daemon here
DAEMON_OPTS=""
# This next line determines what user the script runs as.
# Root generally not recommended but necessary if you are using the Raspberry P$
DAEMON_USER=root
# The process ID of the script when it runs is stored here:
PIDFILE=/var/run/$DAEMON_NAME.pid
. /lib/lsb/init-functions
#PATH=/usr/sbin:/usr/bin:/sbin:/bin:/ScryptPython
# Add any command line options for your daemon here
DAEMON_OPTS=""
# This next line determines what user the script runs as.
# Root generally not recommended but necessary if you are using the Raspberry P$
DAEMON_USER=root
# The process ID of the script when it runs is stored here:
PIDFILE=/var/run/$DAEMON_NAME.pid
. /lib/lsb/init-functions
do_start () {
log_daemon_msg "Starting system $DAEMON_NAME daemon"
start-stop-daemon --start --background --pidfile $PIDFILE --make-pidfile --$
log_end_msg $?
}
do_stop () {
log_daemon_msg "Stopping system $DAEMON_NAME daemon"
start-stop-daemon --stop --pidfile $PIDFILE --retry 10
log_end_msg $?
}
case "$1" in
start|stop)
do_${1}
;;
log_daemon_msg "Starting system $DAEMON_NAME daemon"
start-stop-daemon --start --background --pidfile $PIDFILE --make-pidfile --$
log_end_msg $?
}
do_stop () {
log_daemon_msg "Stopping system $DAEMON_NAME daemon"
start-stop-daemon --stop --pidfile $PIDFILE --retry 10
log_end_msg $?
}
case "$1" in
start|stop)
do_${1}
;;
restart|reload|force-reload)
do_stop
do_start
;;
status)
status_of_proc "$DAEMON_NAME" "$DAEMON" && exit 0 || exit $?
;;
*)
echo "Usage: /etc/init.d/$DAEMON_NAME {start|stop|restart|status}"
exit 1
;;
esac
exit 0
Modify this part to your configuration :
DIR=/myScriptPython (set your own path here )
DAEMON=$DIR/Alarme.py (set the name of your python file to run)
DAEMON_NAME=alarme (set the name of the service Daemon)
As you can see the daemon start a python file, here "Alarme.py". It's the main part of the alarm.
File "Alarme.py" :
Here a sample of code you write. The code use 3 functions :
- sendAlarme(message) (which contains SendSMS,SendMail).
- def SelectHourPlanning():
- def StartAlarmeRF433():
We will focus for the moment on the StartAlarmeRF433's function.
#!/usr/bin/env python
# coding: utf-8
import time
from datetime import datetime,timedelta
from SendSms import SendSMS
from SendMail import Send
from ReceiveRF433 import Receive
from DBAlarmeState import Select,Update
from PlanningDB import GetPlanningDB
""" DATA RECEIVE """
def sendAlarme(message):
SendSMS(message)
Send("TOTO@gmail.com",message)
def SelectHourPlanning():
#get planing from base
planning=GetPlanningDB()
heure=time.localtime().tm_hour+2
mydate=datetime.now()
jour=mydate.weekday()
#print "Planning hour %s" %heure
#print "Planning set to %s" %planning[jour*24+heure]
return planning[jour*24+heure]
def StartAlarmeRF433():
#gestion du timer
period=timedelta(minutes=1)
next_time = datetime.now() + period
#Initialise la liaison RF433 pin 2
R=Receive()
R.init()
while True:
try:
if R.available():
data= R.getReceivedValue()
if data==57464 :
#Motion sensor
#print Select()
if next_time<datetime.now() and SelectHourPlanning()=="1" and Select()==1 :
sendAlarme("Alarm Motion")
next_time=2*period+datetime.now()
if data==3855 :
#Door
#print Select()
if next_time<datetime.now() and SelectHourPlanning()=="1" and Select()==1 :
sendAlarme("Alarm door")
next_time=2*period+datetime.now()
#print "Code : %d" % data
#efface les donnees recues
R.resetAvailable()
continue
except KeyboardInterrupt:
break
StartAlarmeRF433()
Tips : i recommand you to use Dos2unix if you import file from windows (end of line). execute : "Dos2unix *.py" to convert your python's file for RaspBerry.
what does StartAlarmeRF433 ?
it's a infinity loop, waiting a detection of sensors. When a sensor is activated, the code of sensor is received ( if data==3855 :) .
Before send alarm, the code check delay between the previous alarm( 2 minuts minimum between each alarm). then code check if activation of the alarm is made by user and finally send message by mail and sms.
Next part "Send Alarm".
