(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 ...

Arduino PIN-Protected Alarm System with Motion Detection An Arduino project implementing a security alarm system featuring PIN code access via a 4x4 keypad, status updates on a 16x2 LCD, motion ...

This project is a security system for ESP32, allowing users to enter a PIN using a 4x4 membrane keypad. If the PIN is entered correctly, the system displays a message on the LCD screen, and in case of ...

Posted in Arduino Hacks, home hacks Tagged arduino, arduino keypad lock, automated door lock, keypad ← Deconstructing Apollo Flight Hardware A Nightmare On CNC Street → ...

A swappable Arduino-programmable ATMega32U4 Pro Micro (clone) powers it, and the board provides GPIO/I2C breakout pins for unlimited tinkering and customization.

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 ...

PIN unlock is a popular screen locking mechanism used for protecting the sensitive private information on smart-phones. However, it is susceptible to a number of attacks such as guessing attacks, ...