A script that reads input from a serial port (eg Arduino on COM3) using the pyserial library and sends an email (using the GMAIL SMTP settings) when a condition is met.

movement.py

# wehappyfew
# Distributed over IDC(I Don't Care) license

__author__ = 'wehappyfew'


import time
import serial
import smtplib

#
RECIPIENT = "the_recipients email"
GMAIL_SENDER = "the_senders email"
GMAIL_PASS = "the password"

GMAIL_SMTP_SERVER = "smtp.gmail.com"
PORT = 587

SUBJECT = "RED ALERT !!!"
TEXT = "IOU iou IoU IOU IOU iou  \n  " \
	"It worked!!! :P"

# the pyserial library reds thr input from the serial port ( COM ) at spesific baud rate
s = serial.Serial('COM3',9600)

#the function that is going to be called to send the email when movement is sensed
def send_email():
	print("Sending the email..")
	smtpserver = smtplib.SMTP( GMAIL_SMTP_SERVER,PORT)
	smtpserver.ehlo()
	smtpserver.starttls()
	smtpserver.ehlo()
	smtpserver.login(GMAIL_SENDER, GMAIL_PASS)
	header = 'From: ' + GMAIL_SENDER + '\n' + 'To:' + RECIPIENT
	header = header + '\n' +'Subject: ' + SUBJECT + '\n'
	print header
	msg = header + '\n' + TEXT +'\n\n'
	smtpserver.sendmail(GMAIL_SENDER,RECIPIENT,msg)
	smtpserver.close()

while True:
	message = s.readline()
	print(message)
	if message[0] == 'M':
		send_email()
	time.sleep(0.5)