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FendtXerion3800 / Fanatec-Pinout

Dokumentaion of Fanatec connectivity and pinouts for DIY purposes including examples.
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Handbrake Pinout #4

Open Shambler2 opened 10 months ago

Shambler2 commented 10 months ago

Hi,

Was just putting together a custom handbrake based off a spare Logitech G25 pedal.

Pinout in the Wiki appears to need updating - it's missing that GND needs to be tied to both pins 1 & 2, not just pin 1. Without this the wheel/Clubsport USB adapter doesn't recognise the 10k pot as a 'Handbrake'.

Took a bit of experimenting to work out so wanted to share.

Thanks for the resource! I think it could help a lot of people interfacing other gear to their wheelbase

jarmenti commented 8 months ago

I've been wondering what the actual handbrake pinout logic is but I don't have a wheelbase with dedicated HB input. I've gotten one working on my csw2.5 base simply by connecting the wiper of a pot (or hall sensor output) to pin 2 of the PEDAL input, which works flawlessly. I'm guessing the "handbrake input" uses a different set of pins for the signal pin. This must be why they offer a "handbrake converter for clubsport bases as the pedal input receives handbrake signal on pin 2, but "handbrake" ports and the official handbrake do not?

FendtXerion3800 commented 6 months ago

Thank you very much for this information! I'm going to include it.

I was just able to test the wiring on a DD1 and the CSL DD, so its nice to have some informatiosn about other devices from fanatec. Thanks for Sharing! This maybe explains that the shifter does not use Pin 2 for anything. And in fact the provided Shiftercable has no connection on Pin 2. Then Pin 2 of the USB adapter detects if the connected device is either a Shifter (Pin 2 High) or a Handbrake (Pin 2 Low).

What i could say is that the DD1, on which is the wiring based, has a 55K Ohm pulldown resistor on pin 5 for the Handbrake Connector. You need to get the analog signal obove 0.4 volt to not trigger the reset function in the fanatec software (I updated the Wiki with these Informations) But further than that, i have no clue yet.

jarmenti commented 6 months ago

On wheels with no handbrake input, the handbrake signal pin is 2 of the pedal input. This was to necessitate the clubsport pedals handbrake input on the pedal pcb before their bases with the dedicated input came out.

The handbrake would connect to the clubsport pedals, and pass the potentiometer signal down pin 2 of the pedal input of the wheel base. Not sure if this works on wheels with dedicated handbrake inputs as the latest wheel I have is a csw2.5

I just made an adapter for a handbrake input on my csw2.5 by using a 6 pin rj11 6p6c splitter jack. Wheel base to splitter, then pedals plugged into jack 1 on the splitter, and handbrake to jack 2. cheap and quick one.

My guess is that their "CSW handbrake adapter" that comes with their hand brake simply is a rj11 splitter with pin 2 lifted and pin 5 of the handbrake routed to pin 2 of the wheel base. giving you a pedal port, and a hand brake port from the single pedal port input.