For this, just wire up the hardware (arduino+keypad) as described earlier. Although the code is an entry-level one, it includes a secret key option that will need to be entered on the keypad. The ...

In this version, you'll be using a keypad instead of a ... to the setup and change the code to display the waste level on the LCD instead of just the Arduino IDE's serial monitor.

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 ...

Makers, hobbyists and electronic enthusiasts searching for a project to keep them busy this weekend may be interested in a new DIY custom mechanical keypad complete with TFT LCD display ...

This project is a keypad-controlled lock that will allow the user to select a six-digit secret code and ... up to an LCD display. Put those two features together to build this Arduino digital ...

One of the limitations of the small 8 bit microcontrollers like the Atmel ATMega family adopted by the Arduino board ... including the alphanumeric LCD ready to use can be found on the Balearic ...

[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 ...