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PLUG Starter Kit For Arduino Project 21: Matrix Display

Posted by Fiona Su on

Overview
This lesson you will learn how to use an 8x8 LED matrix to show different images.
Component Required

  • EASY plug control board*1
  • EASY plug I2C 8x8 LED Matrix *1
  • EASY plug button module*1
  • RJ11 cable*1
  • USB cable*1

Component Introduction

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What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix.
This module uses HT16K33 chip to drive an 8x8 dot matrix. Just need to use the I2C communication port of microcontroller to control the dot matrix, which can save more port resources of microcontroller.
The four pin of this module is integrated into a crystal plug. All you need to do is connect the module to control board for communication using an RJ11 cable.

  • Interface: Easy plug
  • Supply voltage: 4.5V-5.5V

Connect It Up
Connect the EASY Plug 8x8 LED Matrix module to control board using an RJ11 cable.

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Upload the Code
Below is an example code.

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What You Should See
Upload the code successfully, it will light up a dot light on the matrix.

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Extension Experiment 1

Showing 0~5
You can upload the code below to show the number 0~5.

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What You Should See
Upload the code successfully, the matrix will show the number from 0 to 5.

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Extension Experiment 2
Button Controlled Heart
Hookup Guide
Connect the EASY Plug 8x8 LED Matrix module and button module to control board using RJ11 cables.

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Test Code
Below is an example code.

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What You Should See

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Upload the code successfully, press the button, you can control the matrix show a big heart image or a small one. It seems like a beating heart.

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All Tutorial

 Buy here>>EASY PLUG Super Starter Kit For Arduino STEM EDU

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