When we are talking about the MAX7219-based dot matrix display module, it consists of 64 LEDs connected in a row-column format so that we could easily control them with the multiplexing technique.

An electronic scoreboard is one of the most important gadgets anybody can have during any sports tournament. Old manual scoreboard using conventional methods are very time consuming and Error-prone, ...

Recently, we published an entry-level Arduino project with a single seven-segment LED display. Although it’s an amazing DIY project, we noted that most of the readers are looking for more advanced ...

Custom library written by author, Display_LED_library available at repository URL Version 1.0.1 Display_LED_lib.h // to drive the LED arrays The schematic drawn in eagle is in docs folder. You will ...

This repository contains the library and example code to work with our Whadda LED bar graph display module (WPI471). The library can also be use to drive any other LED bar graph module that uses the ...

There are so many nice hacks in [Joekutz]’s retro LED display project that it’s hard to know where to start. There’s his DIY LED display controlled by an Arduino UNO. To have some text or picture for ...

This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push ...

Animate multiple 24 VDC LED garlands with flashing and variable brightness (13 different parameters) with one Arduino Nano multi-tasking with FreeRTOS. After my previous project with one Arduino ...

This project aims to display the information entered in a mobile phone on an LED dot-matrix type scrolling display. It is done by interfacing a Bluetooth HC-05 module to an LED dot-matrix display ...