Raspberry Pi-based smart home security system

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//Program to 

import RPi.GPIO as GPIO

import time

import numpy as np

import cv2

from datetime import datetime

import os

import smtplib

from email.MIMEMultipart import MIMEMultipart

from email.MIMEBase import MIMEBase

from email.MIMEText import MIMEText

from email import Encoders

gmail_user = "FROM MAIL [email protected]" #Sender email address

gmail_pwd = "FROM MAIL PASSWORD" #Sender email password

to = "TO MAIL [email protected]" #Receiver email address

subject = "Security Alert"

text = "There is some activity in your home. See the attached picture."


sensor = 4


GPIO.setmode(GPIO.BCM)

GPIO.setup(sensor, GPIO.IN, GPIO.PUD_DOWN)


previous_state = False

current_state = False


while True:

    previous_state = current_state

    current_state = GPIO.input(sensor)


    if current_state != previous_state:

        new_state = "HIGH" if current_state else "LOW"

        print("GPIO pin %s is %s" % (sensor, new_state))

if current_state:

cap = cv2.VideoCapture(0)

        ret, frame = cap.read()

cap = cv2.VideoCapture(0)

print "Saving Photo"

picname = datetime.now().strftime("%y-%m-%d-%H-%M")

picname = picname+'.jpg'

                cv2.imwrite(picname, frame)

print "Sending email"


attach = picname


msg = MIMEMultipart()


msg['From'] = gmail_user

msg['To'] = to

msg['Subject'] = subject


msg.attach(MIMEText(text))


part = MIMEBase('application', 'octet-stream')

part.set_payload(open(attach, 'rb').read())

Encoders.encode_base64(part)

part.add_header('Content-Disposition',

    'attachment; filename="%s"' % os.path.basename(attach))

msg.attach(part)


mailServer = smtplib.SMTP("smtp.gmail.com", 587)

mailServer.ehlo()

mailServer.starttls()

mailServer.ehlo()

mailServer.login(gmail_user, gmail_pwd)

mailServer.sendmail(gmail_user, to, msg.as_string())

# Should be mailServer.quit(), but that crashes...

mailServer.close()

print "Email Sent"

os.remove(picname)
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