In this project, we simulate a smart door lock system using an ESP32 microcontroller and RFID, written in Rust. Optionally, a servo motor can be used to simulate door opening, and an OLED display can ...

This project implements an RFID-based attendance system that can recognize two specific student cards and provide audio/visual feedback when a valid card is detected. The system uses UART ...

What happens when you combine an Arduino-based microcontroller with a palm-sized aluminum box and clicky buttons? A fidget ...

DEAR READERS: On November 9, I answered a letter from someone who was trying to find a way to acknowledge her impending divorce in her Christmas cards, which would contain a photo of the letter writer ...

Getting your Trinity Audio player ready... Dear Readers: On November 9, I answered a letter from someone who was trying to find a way to acknowledge her impending divorce in her Christmas cards, which ...

If you're struggling to find the right gifts this holiday season, look no further than your local bookstore — there are more than 50 independent new and used booksellers in the Seattle area after all.

Chiara is an award-winning investigative reporter who specialises in banking and fraud, joining Which? in 2015 following six years as a personal finance journalist at a national newspaper. Banks ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Toby Walters is a financial writer, investor, and lifelong learner. He has a passion for ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Somer G. Anderson is CPA, doctor of accounting, and an accounting and finance professor who ...