It wouldn’t be the holidays without an LED Christmas tree, and luckily [Danilo] brings the goods with an Arduiinofied LED Christmas tree (Italian, translation). In the past week, we’ve … ...

For an added bonus, the tree’s LEDs are synchronized to music generated by an Arduino via a piezo buzzer. Why is it a shield? Well, the whole tree plugs in nicely to a standard Arduino interface.

Head to any drag strip in America, and you'll hear all about a "Christmas tree" — but it's not quite what you'd expect.

Writing code for an Arduino-friendly board is relatively easy; creating the board is the hard part, unless you live and breathe electrical engineering. If HackEDA has its way, however, the design ...

While playing with an Arduino-based light-notification system for webpage errors, the team realized they could use the same Arduino technology to create an interactive light-up Christmas tree.