Case in point, Instructables user botdemy’s message board that displays a message sent from a server. The Pi hosts a web server that translates any block of text into a scrolling LED message.

Hi. <br><br>I picked up an LED signboard at a radio rally the other day, it appears to work to some extent, and has a serial (RS-232) connection for programming it.<br><br>But I can't find anything ...