PS/2/YOU
Go-anywhere, instantly updatable glowing digital message board.
It all started with a small LCD salvaged from an old printer. I recruited my code-savvy older brother, Adam, and we soon had the LCD displaying text from an Arduino microcontroller. This was neat, but it was inconvenient having to plug the Arduino into a computer for reprogramming whenever we wanted to change the text.
We needed something for inputting the text, and it didn’t take long to find a PS/2 keyboard code library for Arduino — which confirmed my observation that anything that communicates with wires has probably been hooked up to an Arduino. ...
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