An addressable LED is a type of LED (Light-Emitting Diode) that can be individually controlled and addressed by a controller or microprocessor. These LEDs are typically arranged in a grid or strip, where each LED has a unique address or identifier that allows it to be independently turned on, turned off, or adjusted in brightness, color, or other characteristics.

Addressable LEDs are commonly used in projects such as digital signage, architectural lighting, interactive displays, and entertainment lighting. They are popular for creating visually stunning animations, patterns, and graphics.

There are several types of addressable LEDs available, including WS2812B, APA102, and SK6812. These LEDs use a variety of communication protocols, such as SPI (Serial Peripheral Interface) or one-wire, to transmit data and control signals from the controller to each LED.

The key feature of addressable LEDs is their ability to be individually addressed and controlled, which allows for a high degree of flexibility and creativity in lighting designs.