7 Segment Display Interfacing with Arduino

In this tutorial we are going to interface a seven segment display to ARDUINO UNO. The display counts from 0-9 and resets itself to zero. Before going further, let us first discuss about seven segment displays. A seven segment display got its name from the very fact that it got seven illuminating segments. Each of these segments has a LED (Light Emitting Diode), hence the lighting. The LEDs are so fabricate ...

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Arduino Based LED Chaser using Rotary Encoder

In this project we are going to interface a ROTARY ENCODER with ARDUINO.  ARDUINO UNO is an ATMEGA controller based development board designed for electronic engineers and hobbyists. In ARDUINO we have 20 I/O pins, so we can program 20 pins of UNO to be used as either input or output. A ROTARY ENCODER is used to know the position of movement and angular movement of a motor or axis. It’s a three terminal dev ...

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8×8 LED Matrix using Arduino

In this project we are going to design an 8x8 LED matrix display, for that we are going to interface an 8x8 LED matrix module with Arduino Uno. An 8x8 LED matrix contains 64 LEDs (Light Emitting Diodes) which are arranged in the form of a matrix, hence the name LED matrix. These matrixes can be made by circuiting 64 LEDs, however that process is time consuming. Now a day they are available in compact forms ...

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RGB LED with Arduino

In this project we are going to interface 5 RGB (Red Green Blue) LEDs to Arduino Uno. These LEDs are connected in parallel for reducing PIN usage of Uno.  The RGB LED will have four pins as shown in figure. PIN1: Color 1 negative terminal or color 1 positive terminal PIN2: Common positive for all three colors or common negative for all three colors PIN3: Color 2 negative terminal or color 2 positive termina ...

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Arduino Propeller LED Display

You have seen Propellers in Aircrafts or in marine ships, if not in real then in movies for sure. In this session we are going to design a Propeller Display with Arduino, LEDs and a DC motor. In this Propeller Display, text will appear to be rotating in propeller fashion in a circular shape. The propeller display is in a way like LED Matrix. It contains 8 LEDs (Light Emitting Diodes) which are arranged in t ...

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DIY LED VU Meter as Arduino Shield

VU Meter or Volume Meter is very popular and fun project in Electronics. We can consider the Volume Meter as an Equalizer, which is present in the Music systems. In which we can see the dancing of LEDs according to the music, if music is loud then equalizer go to its peak and more LEDs will glow, and if music is low then lesser number of LEDs shall glow. Volume Meter (VU) is an indicator or representation o ...

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Scrolling Text Display on 8×8 LED Matrix using Arduino

In this tutorial we are going to design an 8x8 LED Matrix Scrolling Display using Arduino Uno, which will show scrolling alphabets. 8x8 LED Matrix contains 64 LEDs (Light Emitting Diodes) which are arranged in the form of a matrix, hence the name is LED matrix. We are going to make this Matrix by soldering these 64 LEDs on to the perfboard or DOT PCB. The LEDs can be of any color, choose the ones which are ...

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Arduino and 7 Segment Display – Interfacing Tutorial

In this article, we are publishing a tutorial on how to interface seven segment LED display to Arduino. Seven segment displays are used in many embedded system and industrial applications where the range of outputs to be shown is known beforehand. Basic 1 digit seven segment display can show numbers from 0-9 and a few characters. 7 segment displays are of different types; especially they differ in the numbe ...

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Interfacing 8×8 LED Matrix with Arduino

LED matrix displays can be used to display almost anything. Most modern LED sign boards uses various types of matrix boards with controllers. In this tutorial we are going to interface a single color 8×8 LED matrix with Arduino and display a few characters in it. 8×8 matrix consists of 64 dots or pixels. There is a LED for each pixel and these LEDs are connected to total of 16 pins. You can identify the pin ...

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How to Make an LED Scrollbar

In this tutorial, we are going to build an LED Scroll Bar as shown in the image given below. The project is designed to flash Ten LED strips ( by giving different lighting patterns for each strip) with the help of a control board. We have created a simple GIF animation of the project to give you a good idea of what we are going to build. So here take a look at the animation of working model of LED Scroll Ba ...

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Using an Arduino as a Latching Relay

I wrote this one hot week in July 2010. I've been leaving my front door ajar, to get some air through the house. Probably not a very good idea. So I thought I'd hook up an Arduino to ensure that no one takes advantage of the door being unlocked. This essay isn't meant, primarily, to tell you how to make a "fantastically useful" device. While the device is useful, and could be used for several things, the ma ...

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Lab 8: Shift Register and Binary

Topics: First Build The Circuit The Code Hardware Theory Overview-"Rollover Rollover" What is a Shift Register How the Arduino Controls the Shift Register Software Theory The shiftOut Function Binary Numbers Other Functions in the Code Exercise References 1. First Build It would be a really good idea to build this circuit before going to the lab because it is time consuming to connect all of the wires. 1.1 ...

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