Amazon.com: RP2040 RGB LED Matrix Tiny MCU Board Based On Raspberry Pi RP2040 Microcontroller Chip with 5×5 RGB LED Matrix for Colorful Lighting Display, with USB Type-C Port,Support Arduino,C/C++, MicroPython : Electronics
Arduino five led control in sequence with a button
5 Blinking LEDs - Hackster.io
For Loop Iteration (aka The Knight Rider) | Arduino Documentation
Yet Another Arduino Blog: ALA Example - RgbStripSerial
Blinking various LEDs using Arrays - JavaTpoint
How to control an RGB LED with Arduino - Makerguides.com
L1: Turning on an LED - Physical Computing
Basics of Arduino (TINKERCAD)
Arduino Breathing LED Functions — Maker Portal
Arduino - Turn LED ON and OFF With Button - The Robotics Back-End