I quickly created a simple but compact digital tachometer using an Arduino Uno microcontroller and a pretty nice Arduino LCD Keypad Shield. The setup can measure how many times a switch/sensor action ...

Meanwhile, pre-provided shield templates allow your smartphone’s display to emulate a switch, slider, keypad, or LCD display without you actually having to wire anything up.

The most popular display system widely used in Arduino projects is the liquid crystal display (LCD). LCD displays consists primarily of two sheets of ...