[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 ...

Instead, [Ivan] decided to drive it directly from an Arduino Uno ... use of available RAM and flash. The code is available on Github. If you need inspiration for your own controllerless LCD ...

With this free web app, you can build circuits from scratch using three popular Arduino boards — Uno, Nano ... ZIP file containing your program, schematic diagram, and Wokwi link.

Reference circuit diagram of an Arduino-compatible LCD backpack is shown below. What follows next is information on how to use one of these inexpensive backpacks to interface with a microcontroller in ...