Hi all,

I am building the cockpit of the plane I am flying for my PPL, a Katana DV-20.

Yesterday I tried to test a x27.168 with a vid6606 steppermotor driver.
I ran Xplane and uploaded the code to my Slave Arduino Nano.
Then I tried to move the motor with the gauge calibration tool, but it only runs counterclockwise by using the left  arrows. By using the right arrows, nothing happens.

I made a schematic overview of my wiring and I made some pictures. Does anyone have any idea about what I might be doing wrong?

I programmed the nano as a stepper slave and the mega 2560 as a master board.

Schematic Overview

I have a 2.2K resistor between the vid6606 port 1 and port 25 instead of a 1K resistor (simply because my 1K resistors are empty at the moment haha)
I don't have the capacitors as said on the simvim website, they should be optional right?

My nano is powered by the Vin-port via the 5V supply of my Mega 2560

Kind Regards,


Jul 23, 2019 in Stepper Motors by

2 Answers

1. You cannot power the slave board from 5V using the Vin on Nano.

Use  additional power supply, some wall PS with usb connector.

Jul 24, 2019 by

Thanks for your reply vlad.

I've disconnected the Vin, and just connected the USB to a 5V adapter from my iPhone.

It still does the same thing though.

I have put the issue in a small video, I hope it makes it more clear and maybe you can find an answer to the problem I'm encountering.

It's this video: https://www.youtube.com/watch?v=K5JJF3tQEmI

Thanks a lot !

So I updated the circuit with the 5V supply to the nano and it still doesn't work unfortunately.

Circuit is now like this::

A video explaining the issue is over here: https://www.youtube.com/watch?v=K5JJF3tQEmI

Jul 28, 2019 by

Why have  you NOT connected the slave and master board as described on the SimVim wesite?


I was also trying and I had the same problem as you. then I realized that I was wrong to connect the stepper pins on VID 6606. check them well, even more than once. you will see that the problem is there.