Use testing mode in order to show "hello world" on the screen at arduino startup : Verify contrast (it could be too low preventing you to see text), you can adjust contrast using the blue ...

//This sketch writes a message to a 20x4 character LCD display. // LCD Pinout Connection: // RS Pin: Connect to digital input 2. // Enable Pin: Connect to digital input 3. // D4 Pin: Connect to ...

[Kaushlesh Chandel] prototyped a few projects on his Arduino that use an HD44780 Character LCD. Wanting to keep these projects in one piece, but not sacrifice his Arduino board, so he etched his own ...

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, and PS/2 ...