It is good to note that the backlight of the LCD Keypad Shield by default ... is all there is to the Arduino + LCD version of the little tachometer. Good luck with your RPM measurements! The ‘secret’ ...

If, however, you find this too basic, there's a second version of the project with twice as many lines of code. In this version, you'll be using a keypad ... the LCD instead of just the Arduino ...

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