By default, this jack-o-lantern looks like it has a flickering flame, but get close enough to it and it goes crazy with color. All you need is an LED matrix, a Rainbowduino to drive it ...

If you get the pumpkin-carving scaries, fear no more. The trick to creating a great jack-o’-lantern is really quite simple: You need the right pumpkin-carving tools. Instead of cutting all the ...