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 ...

Build festive decorations using Arduino and Raspberry Pi with these five creative holiday projects and video tutorials ...

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 ...

Avoid repetitive stress injuries with an ergonomic keyboard that properly supports your hands and wrists. Here's what to look for, along with reviews of our top picks. I’m a PCMag reviewer and ...

The I2CKeyPad library implements the reading of a 4x4 keypad by means of a PCF8574. Smaller keypads, meaning less columns or rows (4x3) can be read with it too. Since 0.3.2 the library allows a 5x3, ...

Like a musician’s finely tuned instrument, the right keyboard can elevate your PC experience from run-of-the-mill to something sublime. Sure, any keyboard can handle basic internet needs and word ...

Arduino is probably the first thing that comes to mind for most hobbyists and students when they think about embedded systems. It has certainly gained its name among the electronics community, and in ...

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 ...

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 ...

Browse 500+ Arduino projects with code and circuit diagrams. From beginner tutorials to advanced Arduino project ideas - all with downloadable code and step-by-step guides.