Little LED displays are cheap for the Raspberry Pi, and they’re fun to play around with as you learn how to use the thing. Case in point, Instructables user botdemy’s message board that displays a ...

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 ...