3. 8x16 matrix module(EF03418)

3.1. 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.

3.3. 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 .

3.4. 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

https://camo.githubusercontent.com/6c755db5c526672fcc67b12653d60c2e12f2993c/68747470733a2f2f692e696d6775722e636f6d2f45434d357747562e706e67img

3.5. Connector Diagram for Pins

https://camo.githubusercontent.com/5c37fab4d068c788cee54ac92dceed27608f4653/68747470733a2f2f692e696d6775722e636f6d2f6c467a6d5531442e706e67img

3.6. Introduction to Main Function Modules

8x16 matrix

https://camo.githubusercontent.com/718ac7000f2355134e40f3148043c4814cc7f85b/68747470733a2f2f692e696d6775722e636f6d2f56644a4d515a4d2e706e67img

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

12C Communication Interface

https://camo.githubusercontent.com/be79cc35ed8df51deb67928c23984482425ed00b/68747470733a2f2f692e696d6775722e636f6d2f673932706852332e706e67img

It communicates with SCM through 12C communication mode.

3.7. Quick to Start

Hardware Connection

Insert the micro:bit into sensor:bit and then insert 8x16 matrix module into its equivalent IIC connector.https://camo.githubusercontent.com/0e91bc3019d4bdcf64feb2a7f8e9d4029fb2ac0e/68747470733a2f2f692e696d6775722e636f6d2f7957414b79764f2e6a7067img

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:

Result

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

3.8. FAQ