RALEIGH, N.C. — A gecko-shaped pin has been a part of Darlene Johns’ daily life for almost as long as her company, Alphanumeric Systems, has been. After 30 years, Johns is making some changes in her ...

Apple's iPhones have long been protected by numeric passcodes, giving iOS users a way to protect keep their devices safe from hackers and prying eyes. Over the years, passcodes have been supplemented ...

Problem: The English language uses the Latin alphabet with 26 letters and a numeric system with 10 numerals. These alphanumeric symbols (letters and numerals) work well most of the time to communicate ...

On paper, chording — that’s pressing multiple keys to create either a single character or a whole word — looks like one of the best possible input methods. Maybe not the best for speed, at least for a ...

What Is an Optical Illusion? An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see. Instead of showing reality exactly as it is, optical illusions manipulate ...

As promised in the first part of this article, now it is time to see in detail how we can use the Alphanumeric LCD Display in our Arduino sketches. The idea beside this project is to give a simple ...

One of the limitations of the small 8 bit microcontrollers like the Atmel ATMega family adopted by the Arduino board, is the reduced number of I/O ports. Among the main advantages of these ...