Halloween jack-o’-lanterns ... up the skull and place it on a shelf inside a barrow, or burial mound. On Samhain, the day of the dead that we now call Halloween, people would enter the mound and ...

[Paul] first wired up an RGB LED to a Raspberry Pi ... so it easily diffuses the light. The result is a jack-o-lantern that glows different colors as defined by his party guests.