Chain RGB

SKU:U218

Description

The Chain RGB is a full-color LED dot matrix display node in the M5Stack Chain series. It features an 8×8 pixel RGB LED dot matrix unit, supporting individual pixel control, batch pixel writing, and high-speed full-screen buffer refresh, enabling smooth and detailed dynamic lighting effects and pixel animations. For character display, the Chain RGB comes with a built-in ASCII character rendering and font engine, supporting scrolling string display with freely specifiable colors or built-in color gradient effects, catering to diverse visual expression needs. The device also offers multi-level brightness adjustment and multi-angle screen rotation (0°/90°/180°/270°), adapting to various installation and viewing angles. It is suitable for applications such as color pixel light art, desktop ambiance lighting, creative signage, and smart device status indicators.

On the hardware side, the Chain RGB is powered by an STM32G031G8U6 microcontroller, utilizes a UART serial daisy-chain communication protocol, and features two HY2.0-4P expansion ports for flexible connection of additional Chain series modules, helping to build rich, interactive lighting systems.

Features

• M5Stack Chain series
• Full-color LED dot matrix display node
• STM32G031G8U6 core MCU
• 8 x 8 RGB LED dot matrix display unit
• Built-in ASCII character font engine for character rendering
• Supports RGB565 individual pixel control and batch writing
• 64-pixel RGB565 frame buffer for full-screen refresh
• Custom patterns, scrolling text display (maximum 32 characters per node)
• Scrolling text supports fixed color and color gradient effects
• Supports screen rotation: 0°/90°/180°/270°
• UART serial daisy-chain communication protocol
• 2 x HY2.0-4P expansion ports for connecting Chain series devices

Includes

• 1 x Chain RGB
• 1 x Chain Bridge

Applications

• Pixel light art
• Desktop ambiance lighting
• Creative signage
• Smart device status indicators

Specifications

Learn

Use a Chain Bridge connector to connect the main controller Chain DualKey and each Chain series input device. Pay attention to the direction: the triangle arrow should point outward from the main controller Chain DualKey, as shown in the figure:

Schematics

• Chain RGB Schematics PDF

1/1

PinMap

UART

Model Size

• Chain RGB Model Size PDF

Softwares

Arduino

• Chain RGB Arduino Guide
• Chain RGB Arduino Library

Internal Firmware

• Chain RGB Internal Firmware

Protocol

• Chain RGB Communication Protocol

Video

• Chain RGB Product Introduction and Feature Demonstration