The Arduino can just increment the counter up to the appropriate LED. The Arduino then controls the state of the LED using the active high enable line from the column multiplexer chip.

There's something magical about the Periodic table of elements, and even more so if the meaning is illuminated with LED lighting! Thanks to the Arduino team for highlighting this one - a group of ...

[Alan Burlison] is working on an Arduino project with an accelerometer and a few LEDs. Having the LEDs light up as his board is tilted to one side or another is an easy enough project a computer co… ...

A case will protect your Arduino and ensure your sweater has the chance to light up the room for many holidays to come.