Adafruit NeoPixel LED Strip with 3-pin JST Connector - 1 meter [30 LEDs / meter] : ID 4801 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits
how/where to connect a light sensor 3 pin - Frequently-Asked Questions - Arduino Forum
Guide for WS2812B Addressable RGB LED Strip with Arduino | Random Nerd Tutorials
Arduino RGB LED Tutorial - Arduino Project Hub
Driving Multiple LEDs - Arduino Project Hub
L1: Turning on an LED - Physical Computing
ARDUINO UNO - Commom Cathode RGB LED 3-colour Blink Using Simple Code : 3 Steps - Instructables
How To Control WS2812B Individually Addressable LEDs using Arduino