using FastLED XYmatrix with strips on separate pins - LEDs and Multiplexing - Arduino Forum
Arduino and fastLED library - OKdo
Basic of FastLED : 8 Steps - Instructables
Evil Genius Labs | FastLED RGB & HSV Tutorial
Tweaking4All.com - Arduino – All LEDStrip effects in one (NeoPixel and FastLED)
GitHub - Resseguie/FastLED-Patterns: Repeating sequence of color patterns as examples for using FastLED with a strand of LEDs, like the Adafruit Neopixels.
Marc's Public Blog - Arduino - April 2019
Arduino Nano 33 IOT WS2812B Flickering FastLED - LEDs and Multiplexing - Arduino Forum
5 x WS2812 LEDs + Arduino Nano Power Issues - General Electronics - Arduino Forum