Riotboard: IoT based intrusion detection & alert system: Part3 : Email alerts

In this mini blog series we will build an IoT based intruder detection and alert system.

Blogs:

Part1 : Connecting Pir Sensor

Part2 : Capturing intruder image

Part3 :  Email alert  <--- this blog

In previous blog we integrated a camera to Riotboard for capturing images on IR detection.

In this mini blog we will send email (with captured image) of the intruder.

now add below line to previous code (below ln30)

system("python /opt/send_snapshot.py");

#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>

int main()
{
int ret =0;
int fd=0;
char buf[1];

system("devmem 0x20E00A0 w 0x5  ");
system("echo 113 > /sys/class/gpio/unexport");
system("echo 113 > /sys/class/gpio/export");
usleep(100000);
system("echo in > /sys/class/gpio/gpio113/direction");
usleep(100000);

fd = open("/sys/class/gpio/gpio113/value",O_RDONLY);
while(1)
{
ret = read(fd,buf,sizeof(1));
if(lseek(fd,0,SEEK_SET) < 0) return 1;

if(ret>0 && (atoi(buf)==1))
    {
        printf("\n\033[031;43m HUMAN DETECTED \033[0m ");
        fflush(stdout);
        system("fswebcam -d /dev/video2 capture.jpg");
        usleep(500000);
        system("python /opt/intrusion_detection/send_snapshot.py");
    }
else
    printf("\nNo Detection");

fflush(stdin);
fflush(stdout);
usleep(500000);

}
close(fd);
}

Now create a file "send_snapshot.py" in /opt/ directory

cd /opt/

touch send_snapshot.py

copy the below contents to "send_snapshot.py"

#!/usr/bin/python

import smtplib
from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email.MIMEText import MIMEText
from email import Encoders
import os

send_user = "YOUR_GMAIL_ID@gmail.com"        #sender_email
send_pwd = "YOUR_GMAIL_PASSWORD"             #sender_password
recv_user = "YOUR_GMAIL_ID@gmail.com"        #receiver_email
subject = "intrusion detected !!!!"

def mail(to, subject, text, attach):
   msg = MIMEMultipart()

   msg['From'] = send_user
   msg['To'] = recv_user
   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(send_user, send_pwd)
   mailServer.sendmail(send_user, to, msg.as_string())
   mailServer.close()

mail(recv_user,    subject,"below is the snapshot of intruder !!!","capture.jpg")

this script sends snapshot to gmail,  in line 10,11 & 12 replace the defaults with your sender gmail id, sender gmail password and receiver email.

Now perform some hand movement infront of IR sensor, it will show human detected, captures image as "capture.jpg" and sends an email.

Received email:

So we conclude this mini blog series on Intrusion detection and notification.