DiY Shift Light and Display for Sim Racing


I will do my best to explain the building of this project. It is a simple one, with 3  main physical components;

  • An Arduino nano board
  • a TM1638 led board
  • a mini usb cable, depending on the Arduino you use.

The cassette makes part of the overall aesthetics, so not important item in the function of the Display and Leds.


There is a need for a piece of software and i will refer to it later in the post.

Let´s say you have the materials to start the building process; you should have in your hand a TM1638 board and a Arduino nano / Uno / Leonardo. Obs: For this to fit the cassette case it had to be done with the arduino nano, due to its small size. It can either be used an Arduino Uno or Leonardo. It is my knowledge this will function correctly with these boards.

Nano Tm1638 done

This is an Arduino nano, arduino nano This is a TM1638 Board, IMG_20160303_165935

Connecting the TM1638 board to the Arduino, (most important part)

  • The TM1638 Display has on its board labeled “DIO” (data pin), “CLK” (clock pin), “STB0″(strobe pin 0), “VCC” and “GND”.
  • The Arduino has labeled on the board “8”, “9”, “7”, “5V” and “GND”.

As is showing in the above picture, you connect “DIO” to “8”, “CLK” to “9” , “STB0” to “7”, etc.

Here is an example of a connector that can be used,

jumpers arduino
Jumpers for e.g. Arduino
TM1638 Shift Light Project

The last part is the software. For this i have made a short video to present it. Here!

On the video you will find a software that is easy to use comparing it to the DX SLI Manager software from the original video, available too, on my Youtube channel.

The same hardware process but using DX SLI Manager.

For this post i have another software (batrako). The difference between these two software options is that DX SLI Manager is highly costumizable and there´s only the need to check boxes to change settings but its iRacing only!

This software , however, just needs a code in the Arduino and launch the software. It is customizable too but demands knowledge about programming. The information displayed on the code is very evident and easy to give an idea of what each line on the code does but still, it´s not like checking boxes to make changes. So this second version of software can run on Pcars, Assetto Corsa, iRacing, rFactor 1 and rFactor 2.


For this all to work, as pointed and shown in the short video, you need Arduino software IDE. If you encounter any problem with this software you will have to do your homework. When set up correctly this software runs perfectly.

3 bits of information more,

here is another Shift Light project using an Arduino Leonardo,


It can run the same software; batrako and DX SLI.



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This is it, fellas. Catch me next time, here or there.


8 thoughts on “DiY Shift Light and Display for Sim Racing

      1. Make use of the arduino in general! 🙂 Right now, he has it set up as a timer for when he has to water his plants. Haha! 🙂 Do you think it’ll be better if he has another arduino so he can create bigger projects?

        Liked by 1 person

      2. “Water the plants” , that’s funny! If he created that he can come up with another idea for a bigger project. I have seen arduinos for light modulation, house alarms, personal vaults, robots.. . One thing is for sure and is kind of my token: 2 arduinos is better then 1 arduino .:) Buy another one!

        Liked by 1 person

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