IoT Based Smart and Secure Lock V1.0

0 2 1 minute read

In this project we’ve built IoT based smart and secure lock which have 3 layers of access. RFID + PIN/password + OTP(one time password).

Things used in this project

Hardware

Particle Photon Development Board
Itead Nextion NX4832T035 – 3.5″ HMI TFT LCD Touch Display Module
MFRC522 RFID Reader Module
MB102 Breadboard Power Supply module
Solenoid Lock -12V
Two Channel Relay Board 5V
Batteries – 7.4V LiPo, 11.1V LiPo and Power Bank.

Software apps and online services

Particle Build Web IDE
Microsoft VS Code
Particle Workbench
Particle Cloud Console

Overview

In this project we’ve built IoT based smart door lock which have 3 layers of access. RFID + PIN + OTP. Means if user want to unlock this lock he/she has to use valid authorized RFID card, then need to enter correct pin/password and finally has to enter unique one time password sent on his/her Telegram App.

We’ve also implemented Data logging. Valid Entry through door will be recorded in Google Sheet. For that we have used Particle Cloud webhook integration. Using this data log we can monitor who entered lock and when.
Particle Cloud webhook integration is also used to generate OTP using Telegram Bot.
This is IoT based project uses Particle photon Development Board. hence you can update its firmware from anywhere using particle cloud console.
Nextion Touchscreen HMI Display is used for interacting with this door lock.

We’ve covered this project in 5 parts as following, Each part is explained in separate video

Project Details

Part – I : Introduction

Overview
Tools and technologies Used
Functional Block Diagram

Part – II : Software Setup

Installing VScode IDE, Particle Workbench & CLI, Libraries
How to Program and Flash the code into Particle Photon, locally and Remotely
Brief Introduction about Nextion HMI Displays, Nextion IDE, Download and install
How to getting started with Nextion Display