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Originally hailing from Troy, Ohio, Ry Crist is a writer, a text-based adventure connoisseur, a lover of terrible movies and an enthusiastic yet mediocre cook. A CNET editor from 2013 to 2024, Ry's ...

An hourglass tells you what it is in the name — a glass that you use to measure an hour of time passing by. [EDISON SCIENCE CORNER] has built a digital project that mimics such a thing, with little ...

Though the risk is low, having your cards skimmed using RFID technology can cause a potentially major financial burden. The best RFID-blocking wallet helps keep you safe. Our editors and experts ...

With the ability to increase the convenience and security of your entryway, a smart lock is arguably the most important part of a connected home. There's no shortage of options, from fully installed ...

Angelica Leicht is a seasoned personal finance writer and editor with nearly two decades of experience but just one goal: to help readers make the best decisions for their wallets. Her expertise spans ...

The PCA9698 is an I2C, 40 pins parallel IO expander. These 40 pins can be configured as INPUT or OUTPUT and are addressable via 5 banks (groups) of 8 IO pins. The library provides read/write access to ...

Abstract: This work aims at building a working model for a complete intercom door lock system using Arduino and Raspberry Pi. The goal has been to unite the best of Raspberry Pi and Arduino in a ...

This smart door lock system provides an automated security solution using Arduino microcontroller technology. The system detects motion via PIR sensor, prompts for PIN authentication through a 4x4 ...

Abstract: The internet of things (IoT) paradigm aims to make the world smarter by reducing human intervention and promoting automated interactions. A radio frequency identification (RFID) reader is a ...

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