Arduino LED controller shield makes complex RGB LED lighting apps a snap - EDN
WIFI Smart Addressable LED Strip Lights Kit DC5V 60LEDs/m WS2811 Arduino Flexible LED Strip With USB Port, 24Keys RF Remote, Work With Amazon Alexa And Google Home Voice Control [LSLKDC-ALEXA-02] - $23.99 :
Getting Started with the Arduino - Controlling the LED (Part 1)