PiDoorBell Team:

•

0rla3

Published February 17, 2016 © GPL3+

PiDoorBell

Smart doorbell that will alert you on your phone if someone came to see you and you're not at home

BeginnerFull instructions provided10 hours10,716

Things used in this project

Hardware components

Raspberry Pi 2 Model B

Adafruit Button with blue LED

USB webcam

with integrated flash

Software apps and online services

Pushover

Story

About this project

PiDoorBell is a smart doorbell powered by RaspBerry Pi model B. PiDoorBell integrates a camera that takes a photo to the person that came to see you. At this point, if you are not at home PiDoorBell connects to the internet and sends you the picture just taken to your smartphone using Pushover's APIs.

Demonstration

Here you can view a little demo of PiDoorBell:

Hardware

We analyze the hardware that we used component by component

Button

We used a metal button with a built in blue led, for a better night-view. You can find it here

Product description:

Circle LED color: blue

Screw size: about 16 mm

Panel diameter: about 17 mm

Overall length: about 38 mm

LED voltage: 12 V

Switch rated value: 3A/250V AC

Type: latching

Push button: push it - ON, release - ON, push it again - OFF

5 pins: +, -, NO1, NC1, C1

+ : positive terminal

- : negative terminal

NO1 : normally open

NC1 : normally closed

C1 : common

Speaker

You can use any speaker who has 3,5 mm jack connection.

Camera

We wanted to use the official camera module, but it was broken, so we used a normal USB webcam compatible with Linux.

WiFi dongle

Because we need an internet connection, and we didn't want cables, we used a WiFi dongle. We used a Netgear WG111v2, that is compatible directly with Linux.

Case

We made the case with an old radio case.

Software

On button press, Raspberry starts the Python script which has the task of making different operations.

The part of notifications on your smartphone was made using Pushover APIs. This allows you to send real-time notifications to the Pushover account connected both with PiDoorBell both with the receiving smartphone.

Tutorial

For the software part follow these stpes:

Now log in your Pushover account from pushover.net site.

Create an application by clicking on "Register your application" and following the instructions

Now note your User Key and your Application Token (you can view it by clicking on the name of the application created), and replace them in the python script below.

For the hardware part follow these steps:

Wire all the hardware parts following this image

Now load the Python script on your Raspi and start it with this terminal command

sudo python scriptname.py

Try to push the button and verify if all works!

Code

from time import sleep
import os
import httplib, urllib
import RPi.GPIO as GPIO
import subprocess
import datetime
import MySQLdb
import socket
import fcntl
import struct


 
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.IN)
#GPIO.setup(23, GPIO.IN)

# setup variables
count = 0 
up = False
down = False
command = ""
filename = ""
index = 0
camera_pause = "500"
command2=""
db=MySQLdb.connect(host="localhost", user="root", passwd="raspberry", db="admin_pidoorbell")
cur=db.cursor()


hostname = socket.gethostname()
address= socket.gethostbyname("%s.local" % hostname)

#def restart():
	#print("Restarting... ")
	#command2="sudo reboot"
	#print(command2)
	#os.system(command2)

def takepic(imageName):
	print("click")
	command = "sudo fswebcam -r 640x480 --title Picture_taken_by_PiDoorBell_Copyright_2014 /var/www/pidoorbell/img/" + imageName
	print(command)
	os.system(command)
 
def PushOver(title,message,url):
   application_token = "YOUR_APPLICATION_TOKEN_HERE"
   user_token = "YOUR_USER_TOKEN_HERE"
   # Start your connection with the Pushover API server
   conn = httplib.HTTPSConnection("api.pushover.net:443")
 
   # Send a POST request in urlencoded json
   conn.request("POST", "/1/messages.json",
   urllib.urlencode({
   "token": application_token,
   "user": user_token,
   "title": title,
   "message": message,
   "url": url,
   }), { "Content-type": "application/x-www-form-urlencoded" })
 
   # Listen for any error messages or other responses
   conn.getresponse()
 
# Application specific variables
 
# PushOver('Doorbell','Started','')
print 'Doorbell Server Started\r'
 
while True:
	if (GPIO.input(18) == False):
      		print 'Button Pushed!\r'
		

      		os.system('mpg321 -g 100 /home/pi/Ringtones/doorbell1.mp3 &amp;')

		now = datetime.datetime.now()
                timeString = now.strftime("%Y-%m-%d_%H_%M_%S")
                print("request received" + timeString)
		filename = timeString + '.jpg'
		
		print "BUTTON DOWN PRESSED"
		takepic(filename)

		#query="INSERT INTO images (id,url,date) VALUES (NULL," + filename  + ",NULL)"
		cur.execute("INSERT INTO images (id,url,date) VALUES (NULL,'" + filename  + "',NULL)")
		PushOver('PiDoorBell','Ding Dong! Someone is ringing at your door!','http://' + address + '/pidoorbell/img/' + filename)
		#print query
		up = GPIO.input(18)
		count = count +1

		
		sleep(.1)
	#if (GPIO.input(23)==False):
		#restart()
	
# this is never hit, but should be here to indicate if you plan on leaving the main loop

print "done"
sleep(0.2);

from time import sleep
import os
import http.client, urllib
import RPi.GPIO as GPIO
import subprocess
import datetime
import MySQLdb
import socket
import fcntl
import struct


 
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.IN)
#GPIO.setup(23, GPIO.IN)

# setup variables
count = 0 
up = False
down = False
command = ""
filename = ""
index = 0
camera_pause = "500"
command2=""
db=MySQLdb.connect(host="localhost", user="root", passwd="raspberry", db="admin_pidoorbell")
cur=db.cursor()


hostname = socket.gethostname()
address= socket.gethostbyname("%s.local" % hostname)

#def restart():
	#print("Restarting... ")
	#command2="sudo reboot"
	#print(command2)
	#os.system(command2)

def takepic(imageName):
	print("click")
	command = "sudo fswebcam -r 640x480 --title Picture_taken_by_PiDoorBell_Copyright_2014 /var/www/pidoorbell/img/" + imageName
	print(command)
	os.system(command)
 
def PushOver(title,message,url):
   application_token = "YOUR_APPLICATION_TOKEN_HERE"
   user_token = "YOUR_USER_TOKEN_HERE"
   # Start your connection with the Pushover API server
   conn = http.client.HTTPSConnection("api.pushover.net:443")
 
   # Send a POST request in urlencoded json
   conn.request("POST", "/1/messages.json",
   urllib.parse.urlencode({
   "token": application_token,
   "user": user_token,
   "title": title,
   "message": message,
   "url": url,
   }), { "Content-type": "application/x-www-form-urlencoded" })
 
   # Listen for any error messages or other responses
   conn.getresponse()
 
# Application specific variables
 
# PushOver('Doorbell','Started','')
print 'Doorbell Server Started\r'
 
while True:
	if (GPIO.input(18) == False):
      		print 'Button Pushed!\r'
		

      		os.system('mpg321 -g 100 /home/pi/Ringtones/doorbell1.mp3 &amp;')

		now = datetime.datetime.now()
                timeString = now.strftime("%Y-%m-%d_%H_%M_%S")
                print("request received" + timeString)
		filename = timeString + '.jpg'
		
		print "BUTTON DOWN PRESSED"
		takepic(filename)

		#query="INSERT INTO images (id,url,date) VALUES (NULL," + filename  + ",NULL)"
		cur.execute("INSERT INTO images (id,url,date) VALUES (NULL,'" + filename  + "',NULL)")
		PushOver('PiDoorBell','Ding Dong! Someone is ringing at your door!','http://' + address + '/pidoorbell/img/' + filename)
		#print query
		up = GPIO.input(18)
		count = count +1

		
		sleep(.1)
	#if (GPIO.input(23)==False):
		#restart()
	
# this is never hit, but should be here to indicate if you plan on leaving the main loop

print "done"
sleep(0.2);