For connecting 5 RGB LEDs to Arduino we need 5x4= 20 PINS usually, by we are going to reduce this PIN usage to 8 by connecting RGB LEDs in parallel and by using a technique called multiplexing.

Build a captivating 4x4x4 LED Cube using Arduino Nano. The project report provides step-by-step instructions on how to build an Arduino LED cube. You can also follow the 4x4x4 LED Cube circuit diagram ...

This repository demonstrates how to implement motion detection using a PIR sensor with an LED and serial output across multiple platforms like Arduino Uno, ESP32, Raspberry Pi Pico, and STM32 Nucleo.