Gravity: Flexible 16x16 RGB LED Matrix

Flexible 16x16 RGB LED Matrix expands the Gravity ecosystem with a vibrant, bendable display panel designed for creative electronics and interactive installations. The square LED board integrates a soldered XH2.54 three‑pin connector whose pin mapping perfectly matches the Arduino I/O expansion shield, enabling quick connection without soldering. Built around intelligent SK6812/WS2812 addressable LEDs, this programmable lighting panel delivers dense full‑color output in a compact 16×16 grid. Flexible PCB construction allows integration into curved surfaces, wearable builds, robotics displays, and dynamic lighting prototypes where traditional rigid matrices are difficult to mount.

Note: Each LED requires a maximum current of 18mA. When multiple modules are used simultaneously, powering the LED matrices through the Servo Power Port on a DFRobot Gravity IO expansion board is recommended.

Individually Addressable Full‑Color Pixels

This programmable RGB lighting matrix uses SK6812 or WS2812 intelligent LEDs, allowing every pixel within the 16×16 array to be individually addressed. Each LED supports 256 brightness levels across red, green, and blue channels, enabling a palette of 16,777,216 colors. A scanning frequency no lower than 400Hz ensures smooth animations, stable color output, and flicker‑free visual performance. Such pixel‑level control makes this addressable LED display board suitable for animated patterns, graphical indicators, wearable lighting effects, and interactive digital art projects.

Flexible PCB Design for Creative Installations

Unlike rigid LED panels, this flexible RGB matrix panel uses a bendable circuit substrate that adapts to curved or irregular surfaces. Integration becomes easier for wearable electronics, curved robot enclosures, artistic lighting structures, and soft robotics prototypes. The thin and lightweight LED grid maintains structural durability while enabling installation in locations where conventional rigid LED matrices cannot fit, expanding design freedom for makers and embedded system developers building visually dynamic devices.

Single‑Wire Control with Cascading Capability

This intelligent LED module operates through a single‑wire data signal, simplifying microcontroller integration and reducing wiring complexity. Multiple display boards can be chained together by connecting DIN to the DOUT interface, enabling large programmable lighting arrays driven from a single control pin. Combined with open‑source Arduino libraries, the digital LED matrix becomes a scalable lighting platform capable of powering complex animations, scrolling text displays, or large artistic LED installations using minimal microcontroller resources.

Gravity Interface for Plug‑and‑Play Prototyping

A built‑in Gravity 3‑pin interface ensures seamless compatibility with Gravity expansion boards and controllers. The included customized cable allows immediate connection to Arduino I/O expansion shields without soldering or complicated wiring. Such plug‑and‑play integration significantly accelerates prototyping for robotics, creative coding, and educational electronics projects, making the flexible LED display module convenient for both rapid experiments and long‑term installations.

Applications range from robotics status displays and interactive lighting panels to wearable electronics, artistic LED sculptures, and STEM Education demonstration systems. The flexible RGB pixel array also suits IoT prototypes, animated signage, and programmable lighting effects where compact size, vivid color output, and modular expansion capability are essential.