About The Arduino Keypad-Based Door Lock System is a security-oriented embedded system project designed to provide controlled access using a password entered through a keypad. The system replaces ...

Maker系列 在克里斯．安德森（Chris Anderson）所著『自造者時代：啟動人人製造的第三次工業革命』提到，過去幾年 ...

Abstract: 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 ...

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 ...

Here’s a fun build from [RootSaid] that is suitable for people just getting started with microcontrollers and robotics — an Arduino-controlled two-wheeled robot. The video assumes you already have one ...

TIOBE Index for December 2025: Top 10 Most Popular Programming Languages Your email has been sent December’s TIOBE Index lands with a quieter top tier but a livelier shuffle just beneath it. The main ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Ever wanted to receive real-time SMS alerts for your Raspberry Pi projects without dealing with bulky GSM modules or… ...

A lot of US business phone numbers have letters in them so they can be more easily remembered. Your iPhone has a number and letter keypad; each number corresponds to three or four numbers. To dial ...