ESP32 Keypad Database Security System

Alphanumeric LCD, 16 x 2

PlatformIO IDE

ESP32S

SG90 Micro-servo motor

Breadboard, 170 Pin

Arduino Nano R3

4X4 Keypad

<p >In this project, I am going to show you how I created my ESP32 based doorlock mechanism using a keypad and a database to store my valid list of keycodes.  The ESP32 board interfaces with a keypad, an I2C LCD display and my manual doorlock that is being controlled by my servo motor.  It then connects to my Representation State Transfer API (REST) web service built using Node.js.  The keycodes entered by the user thru my keypad  is then validated to the list of my valid keypads stored in my MongoDB database.</p><p ><span >The complete writeup with thorough design discussion and steps including code explanation is in my </span><a href="https://www.donskytech.com/esp32-keypad-database-security-system-design/">website</a></p><p >To see a demo of my project then have a look at this youtube video</p><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/J6TPzymkEUA" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div><p ></p>

ESP32 Keypad Database Security System - Wiring

ESP32 Keypad Database Security System - REST API Server

ESP32 Keypad Database Security System 

ESP32 Keypad Database Security System

I am going to show you how I created my ESP32 based doorlock mechanism using a keypad and a database to store my valid keycodes