DIY Guide: Create Your Own Smart Door Lock System

Are you looking to create your own smart door lock system? With the right tools and knowledge, it’s possible to upgrade your existing door lock and turn it into a fully-functional smart device. In this guide, we’ll show you how to do just that.

DIY Guide: Create Your Own Smart Door Lock System

Why Create Your Own Smart Door Lock System?

Before diving into the step-by-step process of creating a smart door lock system, let’s first discuss why you might want to do so in the first place. There are several benefits:

  • Convenience: A smart lock allows for keyless entry which means no more fumbling with keys or worrying about losing them.
  • Security: Many modern smart locks come equipped with advanced security features such as two-factor authentication and tamper-proof designs.
  • Remote control: With a smartphone app or voice assistant like Alexa or Google Assistant, users can remotely control their locks from anywhere in the world.
  • Integration: Smart locks can be integrated with other smart home devices such as security cameras, lights and thermostats for added convenience.

Now that we’ve established some of the main reasons why creating a DIY smart door lock system is worth considering let’s move on to how to get started.

What You Need

To create a DIY smart door lock system, you will need various tools and components including:


  1. Drill
  2. Pliers/wire cutter
  3. Screwdrivers (flathead & Phillips-head)
  4. Measuring tape


  1. A deadbolt or latch-style mechanical lock (Kwikset, Schlage brands recommended)
  2. An electronic keypad or RFID access card reader module
  3. WiFi-enabled microcontroller board (such as an ESP8266)
  4. Motor driver board
  5. Relay Switch Board
    6.Rechargeable Lithium-ion battery pack

Step-by-Step Guide

With all necessary tools and components ready, follow these steps to create your own smart door lock system:

Step 1: Remove the existing hardware

Use a screwdriver to remove the screws holding the old lockset in place.

Step 2: Install new deadbolt or latch set

Slide the new deadbolt/latch into position and fasten it with screws. Make sure that the bolt operates smoothly before proceeding.

Step 3: Add Electronic Keypad/RFID Access Card Reader

Mount electronic keypad or RFID access card reader onto door using double-sided tape or screws depending on manufacturer recommendations .

Step 4: Connect microcontroller board & motor driver board

Connect microcontroller board such as an ESP8266 to the motor driver circuit for controlling mechanical movement of locking mechanism.

### Step 5: Connect Relay Switch Board

Attach relay switch board which will act as an intermediary between controller and lock so that commands can be sent wirelessly via WiFi connection .

### Step 6:Add rechargeable Lithium-ion battery pack
Install rechargeable Lithium-ion battery pack for power supply. Place it somewhere safe where it won’t get damaged easily but also make sure it is accessible for replacement when necessary.

Now you have successfully created your own smart door lock system!


Creating a DIY smart door lock system can provide many benefits including convenience, security, remote control and integration with other smart home devices. With this guide, you have everything needed to create your own custom-built device at a fraction of cost of buying one from retailers. Just remember always keep safety in mind when working with electronic devices if you are not comfortable handling electrical wires then seek professional help before attempting anything further.


Sure, here are three popular FAQs and their answers for the DIY Guide: Create Your Own Smart Door Lock System:

Q1. How does a smart door lock system work?
A1. A smart door lock system typically consists of two main components: a locking mechanism and a control module. The locking mechanism can be an electronic deadbolt, latch bolt or mortise lock that is installed on your door like any other lock. The control module comprises an electronic device (e.g., tablet, smartphone), Wi-Fi router or home automation platform (e.g., Amazon Alexa, Google Home). When you use your phone or voice command to unlock the door, it sends a signal to the control module via Bluetooth or Wi-Fi to release the locking mechanism.

Q2. Can I create my own smart door lock system without professional help?
A2. Yes! This guide is designed with the purpose of creating your own smart door lock system from scratch without any professional help.The instructions provided in this guide are clear and simple enough for most people to follow; however basic electronics knowledge is required.

Q3. Can I integrate my DIY smart lock system with other smart home devices like security cameras and alarms?
A3.Yes! Most of today’s modern DIY systems come equipped with integration capability to merge multiple devices into one cohesive ecosystem such as through protocols like ZigBee & Z-Wave which opened up new possibilities by allowing users to connect multiple products from different manufacturers together into one network . It will enable you leverage third-party brands for peripheral devices such as video cameras ,sensors etc.. Such integration allows seamless working between each device used under single application controlling multiple devices at once providing more clarity about how secure is your house -inside out