Skip to main content

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 a 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.


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


  • Grove compatible and easy to use
  • Highly abstracted and complete API
  • Support dual-color LED-pixel. Three colors totally (the third color is a mix of two primary color)
  • Interface: UART(SoftSerial in Arduino)
More details about Grove modules please refer to [Grove System](


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 supportedDot, straight line, circle, char, string, number, emoji, image (you can display these symbols by calling API directly in code)
Supported LED matrix size32(row)×64(column)
Supported color in each LED matrix dotDual LEDs (green and red) and a mixed color(yellow), and you can use only one LED in each LED matrix dot
Connector for LED matrixDBSTAR_HUB 08A
Protocol for Grove portUART
Working temperature-40–80 ℃
Dimensions46.5×44 mm
Weight9 g(for the module), 12.5(for all single package)

Platforms Supported

ArduinoRaspberry Pi
The platforms mentioned above as supported is/are an indication of the module's software or theoritical compatibility. We only provide software library or code examples for Arduino platform in most cases. It is not possible to provide software library / demo code for all possible MCU platforms. Hence, users have to write their own software library.

Hardware Overview

  • Grove socket, to connect this product to main control board.
  • LED matrix port(DBSTAR_HUB 08A ), to connect LED matrix. If you can not find a connector like this, you can user jumper wires as an alternative.

Package includes(main parts)

Parts nameQuantity
Grove - LED Matrix Driver v1.01 piece
Grove cable1 piece

Getting Started

Now let us run some basic examples with this module.

With Arduino

Material required

  • Grove - LED Matrix Driver v1.0 × 1
  • 32×64 LED matrix with one red and one green LEDs in matrix dots (single color LED matrix will also be fine) × 1
  • Power line (ribbon shape) for × 1
  • 5 Volts(output) Adapter to regulate input voltage for LED matrix × 1
  • 8-pin(female) ribbon cable × 1
  • Arduino UNO (other Arduino models will also be fine) × 1
  • Grove cable × 1
  • Grove - Base Shield × 1


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.
  1. 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 as below.

Schematic Online Viewer


Tech Support & Product Discussion

Thank you for choosing our products! We are here to provide you with different support to ensure that your experience with our products is as smooth as possible. We offer several communication channels to cater to different preferences and needs.

Loading Comments...