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.

[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 ...

To link a standard 16×2 LCD directly with the microcontroller, for instance Arduino, you would need atleast 6 I/O pins to talk to the LCD. However, if you use an LCD module with I2C interface, you ...

Powered by an Arduino Uno, this laser tripwire alarm project ... except perhaps to change the pin configuration of the motors if they happen to run opposite to your command. Smart devices are ...