Seeed Studio Grove LED Bar 10 Segment MY9221

The Seeed Studio Grove LED Bar is a 10-segment LED gauge bar driven by the MY9221 LED controller chip. It provides an intuitive and visually appealing way to display values that require a gradient or level indication, such as remaining battery life, voltage, water levels, or music volume. Each of the 10 segments can be individually programmed via code, giving you full control over the display pattern and brightness.

Designed as a plug-and-play Grove module, this LED bar simplifies prototyping and integration with your existing Grove-compatible development boards. The module supports a flexible power input ranging from 3.3V to 5V DC, making it compatible with a wide range of microcontrollers and power sources. It can also be cascaded with multiple units to create a larger, more expansive display, ideal for projects that require more granular visual feedback.

The LED bar features three distinct colours across its segments: one red, one yellow, one light green, and the remaining seven green. This colour gradient allows for quick and easy status identification at a glance, enhancing the user experience in applications like battery level indicators or audio visualizers. Demo code is included to help you get started quickly, ensuring a smooth development experience.

The product kit includes one Grove LED Bar V2.0 unit and one Grove cable, providing everything you need to begin integrating this display into your project. Whether you are building a sensor monitor, a creative lighting installation, or an interactive gadget, the Grove LED Bar delivers reliable performance and versatility.