Grove - LED Matrix Driver v1.0

Grove - LED Matrix Driver v1.0 is UART (Serial) to dot matrix LED driver that incorporates various graphics functions.It can only support 32×64 LED matrix. This product is Grove compatible UART interface. It provides easy and rich APIs that abstract the complexity of the underlying LED driving hardware. All you need to is just call these APIs in code to implement different functionalities for your project.

Each dot(i.e pixel) support dual color LEDs. It can produce three colors totally: red (primary color), green(primary color) and yellow (mixed color). The input current for all LEDs can be set at a time.

Note: This Grove module does not support changing the input current of each LED separately.

Version Tracker

Product version Release date Support status Notes
Grove - LED Matrix Driver v1.0(first version) April 2016 Supported None



Operating voltage(V) 3.3–5 Volts
Operating current(mA) Maximum: 28–50 mA
Output voltage (from matrix driver) 3.3 Volts
Symbols/Graphics functions supported Dot, straight line, circle, char, string, number, emoji, image (you can display these symbols by calling API directly in code)
Supported LED matrix size 32(row)×64(column)
Supported color in each LED matrix dot Dual LEDs (green and red) and a mixed color(yellow), and you can use only one LED in each LED matrix dot
Connector for LED matrix DBSTAR_HUB 08A
Protocol for Grove port UART
Working temperature -40–80 ℃
Dimensions 46.5×44 mm
Weight 9 g(for the module), 12.5(for all single package)

Platform supported

Platform Seeeduino/Arduino Rasberry Pi Beaglebone LinkIt ONE
Supported status Supported Supported Supported Supported
Notes If no version number is mentioned for a specific platform, it means this product support all versions within this platform. But you will need additional corresponding Grove Shield such as Grove - Base shield v2 board.

Hardware Overview

Package includes(main parts)

Parts name Quantity
Grove - LED Matrix Driver v1.0 1 piece
Grove cable 1 piece

Getting Started

Now let us run some basic examples with this module.

With Arduino

Material required


Connect all parts as following:

Coding Work

You can find more demo sketch at and development library at
1. A typical demo code. You can upload code to main control board with Codebender.
3. Download and upload the code. If you do not know how to upload an Arduino sketch, please visit for Windows user or for Mac user. You can see the result like belows.


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