The Arduino is in charge of the project's overall operation. A 4×4 keypad can be used to input the necessary password. The motivation behind developing a Password-Based Smart Door Lock System stems ...

In the next section, we will see the circuit diagram ... projects, if you want to explore more on these topics, check out the links below. This project demonstrates how to build a password-protected ...

This is a smart school door lock system prototype that uses Arduino Uno and NodeMCU ESP8266, along with a MySQL database and a local PHP website. It aims to track the time-in and time-out records of ...

Off all the solutions the low-cost one is to use a password or pin-based system. So, in this project ... The Complete circuit diagram for our Arduino based Digital Keypad Door Lock project is shown ...

A smart lock door project ... the system within IoT. 2.2. The Block Diagram and Its Components The system’s block diagram is shown in Figure 1. The lock is controlled by the microcontroller that is ...

The proposed IoT-based smart voice and keypad door lock system using Arduino overcomes the limitations of traditional door lock systems by providing a convenient, secure, and flexible way to unlock ...