LCD.h is the file including all the fixed constants and the local methods used to manage the display. Also useful to create a good documentation of the display features local methods. You should ...

Ensure that the backpack pins are straight and fit in the LCD module, then solder in the first pin while keeping the backpack in the same plane with the LCD. Once you have finished the soldering work ...

This Arduino BASIC interpreter will make a really fun one-day project if you’ve already got the parts on hand. [Usmar A. Padow] put together an Arduino Uno, SD card, four line character LCD, … ...