🔐 Arduino Keypad Door Lock System A simple and effective security system using Arduino Uno, a 4x4 matrix keypad, and a relay-controlled electric lock. This project allows you to unlock a door using a ...

A simple Arduino-based password door lock system using a 4x4 Keypad, SG90 Servo Motor, Buzzer, and LED. Secure your DIY projects with this beginner-friendly smart lock circuit.

[Andrea] just sent us this great student hack he made for his room. He’s constructed an Arduino keypad door lock — without using any proper fastening hardware! The entire build is made out of ...

(keypad: columns and rows switching) So now you can see how the button presses can be translated into electrical data for use with a microcontroller. We can now start the real experiment with as ...

Electronic and Arduino enthusiasts searching for an Arduino project to keep them busy this weekend may be interested in a new Arduino Mega fingerprint door lock. Using a little Arduino programming ...

In an era where homeowners frequently leave for work or education, robust security for residences is imperative. Traditional security measures, including window and door locks, present challenges such ...

Traditional security measures, including window and door locks, present challenges such as key loss and theft, necessitating innovative solutions. The project ‘SafeHaven Shield,’ is an Arduino-driven ...