Introduction

A fun way to make a small display is to use an 8x8 matrix or a 4-digit 7-segment display. Matrices like these are multiplexed - to control 64 LEDs you need 16 pins. Thats a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you, but theres a lot of wiring to set up and they take up a ton of space. After all, wouldnt it be awesome if you could control a matrix without tons of wiring? Thats where these lovely LED matrix backpacks come in.

The matrices use the constant-current drivers for ultra-bright, consistent color, 1/16 step display dimming, all via a simple I2C interface.

Features

This matrix is RED, BRIGHT, Great display and easy to use!

8 rows and 8 cols LED matrix driven by HT16K33 chip

Access to I2C communication pins

Occupy less IO ports of microcontrollers

It is very nice to plug into a breadboard or connect with jumper wires.

The software which drives them are easily downloaded and installed in the Arduino IDE.

Truely a cool learning tool for kids and adults.

Parameters

Input voltage: 5V
Rated input frequency: 400KHZ
Input power: 2.5W
Input current: 500mA

Get this for a project- bright display, easy to get working on the Arduino or even your own custom hardware!

Connect the SCL pin to Analog pin A5, SDA pin to Analog pin A4;

Connect VCC pin to 5V, GND pin to GND.

It allows you to auto create the sequences to display a graphic with ease.

Features

Parameters

Get this for a project- bright display, easy to get working on the Arduino or even your own custom hardware!

Product information