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.

LED Scroll Bar

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 Bar using strips.

LED Scroll Bar-GIF

So this is what we are going to build! And lets begin to learn – How to make an LED Scroll Bar.

Components Required are listed below:

LED strip, Arduino Nano, Dupont line and a control board.

Components are explained in images given below.


LED Scroll - Control Board

How to Make LED Scroll Bar?

Step 1)

Cut the LEDstrip into 10pieces with each LED arbitrary number.Then, weld the traverse at an interface of the LED strip. Here I prefer using Dupont line to connect.

Step 2) Design

Make a control board. A control board is the pattern to control the flash of the LED strips. Aided by Arduino Nano and equipped with a keypad, we can control the LED strip to display different pattern.

Step 2.1) Design the Schematic

Use a free tool like EasyEDA, – which is a free EDA tool suite. It includes Schematic Editor, PCB layout, it has integrated a large number of component libraries, so you can feel easy to find the desired parts.

The Schematic is shown in the picture below.

LED Scroll Bar Schematic


Notes: The voltage of the LED strip is 12 V with Nano 5V. Please remember to add a power regulator such as AMS1117-5.0.

Step 2.2) PCB Layout

LED Scroll Bar PCB Layout

Step 2.3) Make a Sample

After finishing the PCB design, you can click the icon of Fabrication output above. Then you will come into the page of download gerber files and make sample. You are required to fill in some information such as PCB Thickness,Color, Qty of the plate.


Step 2.4) Final PCB


Step 2.5) Soldering

It is very easy to make a control board. Just as the following picture describes, solder the components perfectly.


Step 3)Connection

Connect the LED strip into the control board and at the same time please pay attention to the positive and negative of the terminals.



Step 4) Download Program and Upload to Arduino

Download Program

Connect it to a 12 V power supply, upload the program onto  Arduino Nano and run it.Press the button to switch flashes.


So that’s it! We are done. You can try changing the program to change patterns and flash the led strip the way you like it!







  1. kay xaveriuz

    thank you its very helping me for study how to build my projeck

  2. j.chanthini mahaboob john

    very usefully with more explanation and pictures. thanks from heart