An LED matrix installed in a real pumpkin ... creating a net of black wiring. Above you can see it turned out great. This is a shot of it scrolling the message HAPPY HALLOWEEN.

Mike Szczys of Hack a Day wound up wiring 70 LEDs into a hollowed-out pumpkin, giving his gourd a programmable 5-by-14 LED matrix display. The prep process was pretty straightforward: Gut the ...

It’s simple enough to wire up an LED matrix and have it display some pre-programmed routines. What can be more fun is when the LEDs are actually interactive in some regard. [Giulio Pons ...