This project implements a secure password-based door locking system using Arduino. The system allows users to enter a 4-digit password using a 4x4 keypad. If the password is correct, the door unlocks ...

A basic smart lock system implemented on an STM32 Nucleo board using a 4x4 matrix keypad, servo motor, buzzer, and OLED display. This version includes full keypad-based password handling and ...

Ayyoun is a staff writer who loves all things gaming and tech. His journey into the realm of gaming began with a PlayStation 1 but he chose PC as his platform of choice. With over 6 years of ...

Players will come across several keypads while exploring Playtime Co., but none look quite like the Emoji Keypad in Poppy Playtime: Chapter 5. Players will encounter this keypad mid-game, in the ...

Keypad phones, believe it or not, are still in use, and there is a surprising amount of variety to choose from. Some of the phones include 4G connectivity, cameras, and are built to last. If you're ...

Greysun is the Lead Guides Editor at GameRant, where he oversees game help coverage for everything from the biggest AAA releases to standout indie and live-service titles. Professionally, Greysun has ...

A standard telephone keypad, with four rows of three keys each. The top row consists of 1, 2, and 3, with keys continuing down in order until the last row, which is usually *, 0, and #. Such a keypad ...

The ability to build a robot to take care of a tedious task for you is power indeed. For a few centuries, the task of helping determine one’s location fell to the sextant. Now, you can offload that ...

March 4, 2026 • We all know what gentrification looks like IRL — boxy, corporate-owned apartment complexes, places to get a quick bowl for lunch, streets that are dubbed "cleaner" and "safer" (even at ...

Stop using the same login credentials everywhere. The top password managers we've tested create unique, strong passwords for each of your online accounts and alert you to potential data leaks. I ...

People are bad at passwords. Most don’t bother with the unique, complex phrases or character strings that make a good password. Worse, they share weak passwords with others. The best password managers ...

What's CODE SWITCH? It's the fearless conversations about race that you've been waiting for. Hosted by journalists of color, our podcast tackles the subject of race with empathy and humor. We explore ...