These days, you could be forgiven for thinking driving an LCD from a microcontroller is ... Instead, [Ivan] decided to drive it directly from an Arduino Uno. This is easier said than done.

Simple clock implementation using an Arduino UNO connected on a 20 x 4 HD44780 compatible LCD Display. In this implementation i've used a YM2004A. LCD (pin 11) DB4 pin to Digital 5 LCD (pin 12) DB5 ...

By integrating an RFID reader with an Arduino ... 10 seconds with the help of a relay and solenoid door lock, meanwhile, it displays the door status on LCD display. #include <MFRC522.h> #include ...

I hooked them up to an Arduino Uno board with a Parallax Serial 16×2 Character LCD. I got both ICs working in separate sketches that I’ve blogged about previously, but I wanted one combined program.

[Usmar A. Padow] put together an Arduino Uno, SD card, four line character LCD, and PS/2 keyboard. but he’s also included alternative options to go without an LCD screen by using a computer ...

3-pin header with an “OFF” pin to turn off the board and a “VRTC” pin to keep the internal Real-Time Clock powered and running. Both Arduino UNO R4 boards retain hardware compatibility with the UNO ...