Emulator V7 Issue with DD1 & DD2 (Fixed with V7.22)

UPDATE 10th January 2026

Great news everybody... I have sorted this out now.  I am busy adapting the V7.21 PCB's to V7.22 by adding a resistor as shown at the end of the blog.  After testing this for a good time I no longer get the issues.

If you have the DD1 / DD2 please order the V7.22 emulator versions NOT the V7.

Please contact me if you already have the V7 and are struggling to use it on the DD1 / DD2

The next batch of PCB's I have manufactured will include this change and gradually Version 7.22 will become the only version.  While it's time consuming adapting the V7.21 PCB's I will gradually update them, while continuing to sell the V7 as well.

Simon

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Original Post...

It has been reported that there is an issue with the SRM Emulator V7 and the Podium DD1 & DD2 wheelbases.

The issue is that a wheel does not always get seen by the wheelbase and the Fanatec driver / software.

If the issue occurs you may see either of these happen...

Both of these are incorrect you should see this...

I have been able to recreate this on my DD2 in the workshop and am at a loss as to how I did not spot this when testing and that it's taken months for it to have been reported.  But from what I can tell it's nothing to do with new drivers or firmware from Fanatec as even rolling back firmware does not seem to fix it.

Although its not right and very annoying, if you do have this issue and keep trying to attach your wheel it will at some point connect correctly and once it is seen as the Universal Hub it will stay there until the wheelbase is turned off of the wheel removed.  So playing games is safe to do providing it shows up correctly as the Universal Hub.

What is the issue and what are SRM doing about it?

Basically sometimes the wheelbase and the emulator are not communicating properly when trying to identify the wheel.  I do not understand why and also why it only happens on the DD1 & DD2.

I have tried many things in software / firmware and cannot seem to find a solution.  I have had some success by adding additional grounding to the emulator which makes mine about 90% successful, but it's still not perfect.

I am continuing to work on this issue and will provide an update when it's resolved.  I would also like to apologise for the problem.

A notice has been added to the products today about this but if you already have the emulator and are suffering the issue please would you let me know by email or on the chat so I can log it and get you a solution.

Kindest regards

Simon Maltby

UPDATE: 19th December 2025

After working on this all week I have made some progress. I have found a solution that seems to solve the issue.  I am currently testing it on all wheelbases to be 100% sure it works all the time.

Unfortunately it is a hardware change with an additional resistor being required to keep the signals clean.  I am currently checking that the same cannot be achieved in software... a software solution would allow existing customers to update their firmware and would also mean a quick solution.  A hardware change will take some time to get produced.

I am away on holiday from the 21st December until the 5th January so won't be working on this again until I'm back.

I still have no idea why only the Podium DD1 and DD2 are affected... looking at all documentation on the communication used this resistor should not be required, but is discussed as a useful addition.

Happy Christmas everyone.  I will get this resolved.  Thank you so much for being patient.

For anyone interested in the details... adding a 10k resistor is the fix as shown here.  Its from one of the data lines to ground.

Simon