He picked up a strip of addressable RGB LEDs from Adafruit ... and wrote a small Arduino library that allows for easy control of the grid. We’re not sure if he plans on scaling these arrays ...

[James] was wandering around Walgreens after Christmas and found something very interesting – RGB LED Christmas lights that were individually addressable ... figure out the control protocol.

Würth Elektronik's range of RGB LEDs with integrated controllers now includes dual-wire ICLEDs.