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 ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Like other HIIT-style workouts, the method contains spurts of high-intensity ...

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, ...

Plenty of models struggle to meet their official fuel economy (mpg). We run our own, independent fuel consumption tests under lab conditions. We conduct repeated emergency stop tests from 62mph ...

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 ...

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 ...

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 ...

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 ...

Our pick of the best small 4x4s Ideal if you want serious off-road capability From real bargains to premium models ...