This project implements a password-protected electronic door lock system using an Arduino microcontroller. A 4×4 matrix keypad is used to enter the password, while a 16×2 I2C LCD provides system ...

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 ...

Concerned about someone spying on your smart speaker, video doorbell, or even your fridge? Here's how to prevent hackers from ...

The 8051 was an 8-bit Harvard-architecture microcontroller first put out by Intel in 1980.  They’ve since discontinued that ...

Colombo, March 18 (Daily Mirror) - Sri Lanka has implemented a QR Code-based National Fuel Authorization System for fuel distribution across the country, requiring vehicle owners to obtain a ...

Elon Musk's X will auto-lock accounts that mention crypto for the first time to curb phishing and scam token promotions.

In this video I'm using the Reyax RYRR30D NFC module to create a system that logs records to a Notion Database. The RYRR30D ...

When it comes to coding, peer feedback is crucial for catching bugs early, maintaining consistency across a codebase, and improving overall software quality. The rise of “vibe coding” — using AI tools ...

The Government of Sri Lanka has decided to implement the National Fuel Authorization System using QR codes for fuel distribution with effect from 6.00 a.m. on March 15, 2026, the Ministry of Energy ...

JOHOR BARU: The first day of the implementation of the new QR code system for car users at the two land checkpoints with Singapore has received mixed reactions from users. While some welcomed the move ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Jon Chase Jon Chase is an editor of smart-home coverage. For Wirecutter, he ...