Smart Door Unlock System

Project Title

Smart Door Unlock System

Project Area of Specialization Internet of ThingsProject Summary

The door is crucial in terms of home security. The owner will keep the door locked at all times to keep the house secure. However, if the owner is in a hurry to leave the house, they may forget to lock the door, or they may be unsure whether they have closed the door or not. For this IoT project, we created aSmart Wi-Fi door lock using theESP32-CAM and the Blynk App. When someone presses the doorbell in this ESP32CAM Wi-Fi lock project, you will receive an alert on your phone with a photo of that person. After reviewing the photo, you can also quickly unlock the door with your mobile phone. This not only saves the cost of purchasing expensive LEDs, but it also saves the cost of hiring a security guard. 

Project Objectives

To save the effort and time

• To save money on the installation of a costly security system

• To make security access easy to the general public

• To make cost-effective system

• To reduce the amount of electricity used

• To reduce the cost of other equipment and the high cost of implementation.

Project Implementation Method

First we program the ESP32CAM, using FTDI232 USB to Serial interface board. By the help of jumper wire we made a connection

Then i opened Audrino and write source code

Before uploading the code to ESP32CAM,we checked the following setting:

• Board Settings:

  • Board: “ESP32 Wrover Module”

  • Upload Speed: “921600”

  • Flash Frequency: “80MHz”

  • Flash Mode: “QIO”

  • Partition Scheme: “Hue APP (3MB No OTA/1MB SPIFFS)”

  • Core Debug Level: “None”

• COM Port: COM3

• GPIO 0 must be connected to GND pin while uploading the sketch

• After connecting GPIO 0 to the GND pin, press the ESP32 CAM on-board RESET button to put the board in flashing mode.

Then we set the interface of the project on the Blynk App.

Open the project in the Blynk AppClickon the “+” icon on the top.

1. Select the Image Gallery Widget from the Widget Box
   (Setting: Pin- V1) (Function: show the image)

2. Select the Styled Button from the Widget Box
   (Setting: Pin- GP14, Mode- PUSH) (Function: capture photo)

3. Select the Styled Button from the Widget Box
   (Setting: Pin- GP12, Mode- SWITCH) (Function: Unlock/Lock door)

4. Select the Notification from the Widget Box
   (Function: get the notification)

After the Blynk app is set up, the  next step is to test the circuit.

By Supply 12V DC to this smart WiFi door lock and connect your smartphone with the same WiFi network.

Now if you press the push button you should get a notification on the mobile phone.

After that click on the ‘Take Picture’ button to get the picture and then click on the ‘Unlock Door’ button to control the 12v electronic lock.

Benefits of the Project

• This smart door lock system improves the security of the home. 
• It costs less than other smart door lock systems. 
• It saves electricity by eliminating the need for LEDs that are linked to cameras. 
• It is convenient because the user does not have to go to the gate/door to unlock it; instead, the user can unlock the door while still sitting in their rooms. 
• This system improves security by allowing the user to see who is at the door and take photographs of them. 

Technical Details of Final Deliverable

IOT platform in form of Blynk App

This Android application is developed to establish connection with the lock through smart phone. 

Software

Arduino

Hardware 

Esp32 Cam

FTDI232 USB to Serial interface board

Project Board

The source code: 

To programme the esp32 camera 

Final Deliverable of the Project HW/SW integrated systemCore Industry SecurityOther Industries IT Core Technology Internet of Things (IoT)Other Technologies OthersSustainable Development Goals Decent Work and Economic GrowthRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	29800
ESP32-CAM	Equipment	2	2000	4000
Electronic door lock 12v	Equipment	1	1000	1000
TIP122 NPN Transistor	Equipment	4	50	200
7805 voltage Regulator (5v)	Equipment	2	100	200
10k Resistors	Equipment	6	50	300
Capacitor-220uF	Equipment	2	400	800
Over heads	Miscellaneous	1	5000	5000
12V DC adaptor	Equipment	2	300	600
FTDI232 USB to Serial interface board	Equipment	6	700	4200
jumper wires	Equipment	20	300	6000
Printing	Miscellaneous	200	20	4000
Stationery	Miscellaneous	5	200	1000
switch board	Equipment	1	2500	2500