# 8x16 matrix module(EF03418)

##  Introduction


8 x 16 matrix module is a kind of 8 x 16 matrix screen that can display numbers, commonly used letters and symbols with scrolling-displaying function. It adopts IIC bus protocol and makes it easy to connect and operate.

## Products Link

[ELECFREAKS 8x16 Matrix Module](https://shop.elecfreaks.com/products/elecfreaks-8x16-matrix-module?_pos=1&_sid=17c65dbd7&_ss=r)

## Characteristic


 The matrix module is of high luminance, low consumption and good quality.
 It has original outlook with silk print design.
 It adopts IIC bus protocol and makes it easy to connect and operate.
 It has three user-defined hardware address bit .

## Parameter


| Item               | Parameter          |
| --------------- | --------------- |
| Name               | 8x16 matrix module |
| Version            | V1.2               |
| SKU                | EF03418            |
| Operating Voltage  | DC 3-5V            |
| Communication Mode | IIC Connector      |
| Dimension          | 37 x 43mm          |
| Net Weight         | 11.6g              |

### Outlook and Dimension

[![img](https://camo.githubusercontent.com/6c755db5c526672fcc67b12653d60c2e12f2993c/68747470733a2f2f692e696d6775722e636f6d2f45434d357747562e706e67)](https://camo.githubusercontent.com/6c755db5c526672fcc67b12653d60c2e12f2993c/68747470733a2f2f692e696d6775722e636f6d2f45434d357747562e706e67)

## Connector Diagram for Pins

[![img](https://camo.githubusercontent.com/5c37fab4d068c788cee54ac92dceed27608f4653/68747470733a2f2f692e696d6775722e636f6d2f6c467a6d5531442e706e67)](https://camo.githubusercontent.com/5c37fab4d068c788cee54ac92dceed27608f4653/68747470733a2f2f692e696d6775722e636f6d2f6c467a6d5531442e706e67)

## Introduction to Main Function Modules


###  8x16 matrix

[![img](https://camo.githubusercontent.com/718ac7000f2355134e40f3148043c4814cc7f85b/68747470733a2f2f692e696d6775722e636f6d2f56644a4d515a4d2e706e67)](https://camo.githubusercontent.com/718ac7000f2355134e40f3148043c4814cc7f85b/68747470733a2f2f692e696d6775722e636f6d2f56644a4d515a4d2e706e67) 

Each LED can be turned on or off separately to display numbers, commonly used letters and symbols.

### 12C Communication Interface 

[![img](https://camo.githubusercontent.com/be79cc35ed8df51deb67928c23984482425ed00b/68747470733a2f2f692e696d6775722e636f6d2f673932706852332e706e67)](https://camo.githubusercontent.com/be79cc35ed8df51deb67928c23984482425ed00b/68747470733a2f2f692e696d6775722e636f6d2f673932706852332e706e67) 

It communicates with SCM through 12C communication mode.

## Quick to Start


### Hardware Connection

Insert the micro:bit into sensor:bit and then insert 8x16 matrix module into its equivalent IIC connector.[![img](https://camo.githubusercontent.com/0e91bc3019d4bdcf64feb2a7f8e9d4029fb2ac0e/68747470733a2f2f692e696d6775722e636f6d2f7957414b79764f2e6a7067)](https://camo.githubusercontent.com/0e91bc3019d4bdcf64feb2a7f8e9d4029fb2ac0e/68747470733a2f2f692e696d6775722e636f6d2f7957414b79764f2e6a7067)

### Software Program

Use makecode to program and achieve the scrolling-displaying on 8x16 led matrix display. 

The links of the program: <https://makecode.microbit.org/_FsFWvpXP4gsm>

You can also download it directly:

<div style="position:relative;height:0;padding-bottom:70%;overflow:hidden;"><iframe style="position:absolute;top:0;left:0;width:100%;height:100%;" src="https://makecode.microbit.org/#pub:_R8RbWkh6pTP0" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe></div>

### Result

The scroll-displaying begins from top to bottom and then from left to right on the 8x16 matrix module.

## FAQ