LED / Button

This category brings together a variety of LED display and button‑interaction expansion modules, designed for embedded development and smart hardware applications. Products cover keyboard controllers, LED light panels, matrix displays, digital tubes, and programmable light strips, enabling rapid implementation of lighting control, digital display, key input, and visual interaction functions.

Suitable for DIY projects, maker development, teaching experiments, and smart device expansion, helping developers efficiently build rich human‑machine interaction experiences.