In the past week, we’ve seen LED Christmas trees of digital ... s tree makes use of the PWM pins on his Arduino, it was possible to connect his tree to the Arduino with a few 90 degree headers.

Nothing reminds us that it’s the holiday season more than an LED Christmas Tree ... For an added bonus, the tree’s LEDs are synchronized to music generated by an Arduino via a piezo buzzer.

Tired of your ho-hum, bah-humbug, sit-there-like-a-lump-of-wood, old-school Christmas tree? Well, Instructables user fjordcarver has a solution for you. The Instructable includes complete ...

Described here is an interesting circuit of an Arduino-based Christmas LED Light Bar. It is very simple so that even a novice can build it without any difficulty. It is infact a 3-channel sequential ...