Problem with logitech g27 and race07

[dennisnojack]

If the Arduino only send to Popolu only the output pin from Arduino to Popolu.

If the Arduino send/receive to/from Popolu the output/input from/to Arduino to/from Popolu.

Am i right sirnoname?

Read the datasheet of the opto-isolator you want to buy.

[sirnoname]

Ah, you are using a pololu H-Bridge and not a pololu controler! That is new.
After the arduino must be a optocupler to avoid power noise to the arduino or to the shield contact. Only in some low power case this must not be equiped.

[Monaco85]

explain me please.

I testet now with 2 PCs. One pc with arduino and one with the game and the wheel. The Problem is the same.
This cant be a problem from the USB because i use a nother pc.
I dont know whats wrong.

But its only when i play with X-Sim.

[sirnoname]

The electrical noise of the whiper motor is high. If you connect this circuit with your arduino you make influences to the ground connection and produce USB comunication problems (disconnects).

[Monaco85]

Influence to my ethernet ? I dont think so.

The only connection between Logitech and Ardiuno(And Viper) ist a Ethernet Cable trough a Switch


I testet with my old logitech Momo and it works. It will not crush.
Now i think my G27 is smashed.

[dennisnojack]

And your ethernet-cable is grounded.

PC1- ethernet ground
PC2 - ethernet ground
Switch - ethernet ground

Result = Ground of Pc1, Pc2 and Switch is the same.

[Monaco85]

No. Ethernet has a inverted signal, no ground. In this point u are wrong.

And i sniffed with wireshark. There are no unknown or unreadable packages.

I bought a new Logitech g27. In two days i will tell you more.

As i said. Because of testing on 2 Pc's iam nearly sure that the problem dont comes from my pololu.

@sirnoname. Iam right with you that the motors can produce influence on the USB.
But noch on USB on an other PC.
This would be Magic

[dennisnojack]

Thats not what i mean with ground.

All your PCs use the same ground. Because your ethernet cable is shielded (ground).

I mean not to short a circuit.

[sirnoname]

You can start the extractor with a nojoystick parameter to avoid touching direct input completely:
http://www.x-sim.de/manual/source_sdk.html
You will not see your stick in the box if you use this parameter.

[Monaco85]

I disabled all plugins. I think this has the same effect.

I will tell you if it works with the new g27.
It makes me hopeful that it will work. Because with my logitech momo everythin work fine.