Smooth RGB LED Transitions with Johnny-Five - Hackster.io
Amazon.com: ELEGOO 3mm and 5mm Diffused and Clear Assorted LED Light Bulbs Kit 5 Light Colors with UV, RGB CA, Fast Flashing Compatible with Arduino (Pack of 350) : Industrial & Scientific
Amazon.com: ELEGOO 3mm and 5mm Diffused and Clear Assorted LED Kit 5 Colors Pack of 600 Compatible with Arduino : Industrial & Scientific