Now to use this for data logging and GSM data transmission for data logging python script from this replay is used#3 http://forum.arduino.cc/index.php?topic=105148.0

import serial
import time
ser = serial.Serial(‘/dev/ttyUSB0’, 9600, timeout=60)
time.sleep(60)
logfile = open(‘test.csv’, ‘a’)
while 1:
   line = ser.readline()
   now = time.strftime(“%Y-%m-%dT%H:%M:%S:00.000000+0530”, time.localtime())
   a = “%s,%s” % (now,line)
   print a
   logfile.write(a)
   logfile.flush()
logfile.close()
ser.close()

To make the RPi run automatically this script for every reboot, followed this well-written tutorial http://blog.scphillips.com/2013/07/getting-a-python-script-to-run-in-the-background-as-a-service-on-boot/ the steps were

added this line to the first line of python script

#!/usr/bin/env python

then moved this file to the location of /usr/local/bin/myservice here myservice folder has to  be created

give execute command for the file

chmod 755 pythonscript.py

then create a file in /etc/init.d as pythonscript.sh and add following codes in it

#!/bin/sh
### BEGIN INIT INFO
# Provides: myservice
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Put a short description of the service here
# Description: Put a long description of the service here
### END INIT INFO
# Change the next 3 lines to suit where you install your script and what you want to call it
DIR=/usr/local/bin/myservice
DAEMON=$DIR/pythonscript.py
DAEMON_NAME=pythonscript
# This next line determines what user the script runs as.
# Root generally not recommended but necessary if you are using the Raspberry Pi GPIO from Python.
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 --user $DAEMON_USER --startas $DAEMON
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 $?
;;
*)
echo “Usage: /etc/init.d/$DEAMON_NAME {start|stop|restart|status}”
exit 1
;;
esac
exit 0

give execute command for this file

chmod 755 pythonscript.sh

now test it with this command

sudo /etc/init.d/pythonscript start

it will show

[ ok ] Starting system dylos_csv_ser daemon:.

now give this command

sudo /etc/init.d/dylos_csv_ser.sh stop

it give this error [….] Stopping system dyloscsvser daemon:start-stop-daemon: warning: failed to kill 2794: No such process No process in pidfile ‘/var/run/dyloscsvser.pid’ found running; none killed.

Check any pesky mistake in the python script python script has to run with this command it self

cd into the python script directory then run ./pythonscript.py it has to run other wise problem is in python script, mine was due to a space in front of the python (Hrrrrrrah) interpreter in the python script

#!/usr/bin/env python

after changing this all are fine

Another tips to rename files in linux

mv file1 file2

have to careful it can replace the file, can see more option in http://www.cyberciti.biz/faq/linux-rename-file/

that is it, python script is in daemon and keep automatically work after rebooting.

For GSM based transmission of DYLOS reading, use http://misc.flogisoft.com/phone/gammu_send_sms