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Steering Wheel Interface for W211

DaveBk

New Member
Joined
Mar 5, 2004
Messages
2
Just finished building an interface for the W211 steering wheel controls. It's CAN Bus based and was used to provide integrated answer/hang up for my Parrot CK3000 bluetooth kit.

Details Here:

Steering Wheel Interface

Hope you find it interesting...
 
Dave

Welcome.

Wow - for a first post, I don't think many of us can beat that !!

Thanks for sharing the knowledge and the information !

S.
 
Hiya Dave,

Thats fantastic! Have a banana! :bannana:

Congratulations on your achievement.

I suppose it should be pretty easy from here to work out a way of integrating the steering wheel controls to an aftermarket head unit.

I had my CK3000 fitted to my car a few years back but its interesting to see that you decided to use a separate loudspeaker and not have the output fed through the stereo speakers.

TTFN,

Tigger
 
DaveBk said:
Just finished building an interface for the W211 steering wheel controls. It's CAN Bus based and was used to provide integrated answer/hang up for my Parrot CK3000 bluetooth kit.

Details Here:

Steering Wheel Interface

Hope you find it interesting...

I can help you make that into a factory circuit board if you would like a condensed surface mount version.

What about noise and RF shielding ?
 
That is seriously impressive! Hope you can get to produce this commercially and make you lots of money and us very happy :)
 
Miro - I've no plans to take this any further at present, but If you feel included to enhance what I've done, then go ahead. The PCB I designed has the TDA1054 surface mounted, and I suppose I could have chosen to surface mount the other IC's. I don't have any solder masking/paste/reflow capability and hand soldered surface mount is a painful process.... With regard no noise and RF shielding, I have not taken any special precautions, but as I don't ever transmit on the CAN I don't do any high power/speed switching so RF emissions should be fairly low?

Tigger - the separate speaker was just the path of least resistance... on the W211 I would have to have dug out the audio gateway in the boot/trunk etc and the effort did not seem worth it.
 
Dave,

Wow. Impressed. I always knew that someone would find a good application for a PIC other than degree projects.....

Paul G
 
WOW!

Dave, that is brilliant.
For your next project I would like you to design and build a system similar to Command, but slightly better, and install it in my car. I would obviously supply drinks and snacks etc.

Seriously I think that what youve done is great, only wish I was that clever.
 
That is well clever as my teenage son would say ! Well done .

Is there a facilty to mute the cars radio speakers when using the phone? Will this work with other blue tooth phones? In fact , wil it work with th eNokia 6310i fo rthose who dont want /cant justify the cost of a full MB kit
 
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thats is so cool, who needs the apline interface?
 
DaveBk said:
Miro - I've no plans to take this any further at present, but If you feel included to enhance what I've done, then go ahead. The PCB I designed has the TDA1054 surface mounted, and I suppose I could have chosen to surface mount the other IC's. I don't have any solder masking/paste/reflow capability and hand soldered surface mount is a painful process.... With regard no noise and RF shielding, I have not taken any special precautions, but as I don't ever transmit on the CAN I don't do any high power/speed switching so RF emissions should be fairly low?

Tigger - the separate speaker was just the path of least resistance... on the W211 I would have to have dug out the audio gateway in the boot/trunk etc and the effort did not seem worth it.


I dont know if you should decline so soon. I can have an order placed on your table any time soon. Looks like I sold a few hundred already.

Its up to you. I would like to see the SM version in production before the end of this year. I wish there was some way to adapt the system into a Y cable at the head end or maybe just D2B capability. You wouldnt need to spend much, there is a worldwide glut of old Nokia PSE units with all the parts needed going for about $5.
 
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An excellent write-up, despite losing me technically half way through. Just shows you that with the right expertise anything is possible. Well done Dave. :rock: :rock:
 
Excellent work, you saved me from starting from scratch it seems. Also it's good to bump into another fellow engineer.

The part I wasn't sure about was how to spot the messages from the steering wheel on my W210 but it seems you've got that covered.

I'd be tempted to port the design onto one of the bigger PICs and use a deep flash memory to store the data, possibly without losing packets. Perhaps we could work together on this? I principally have two aims - one to be able to use the steering wheel buttons to control my APS4 and the second to be able to write to the instrument cluster display as COMAND does.

Of course, if CANBUS makes enough sense, it may be possible to extract a vast array of information from the car.

Regards, Ian.
 
Parrot retro + DUMMY phone module = true bluetooth + D2B

Last night whilst I was reading several documents on phone systems I was wondering if someone would invent a DUMMY insert - probably a pic chip - which may emulate a phone being installed all the time. The PCB could be inserted into the Nokia RG69 socket and thus hidden totally.

Then something like the Parrot bluetooth system could route into the Nokia audio circuit. Thus completing the retrofit into MB specs and removing the cradle forever.

Does anyone have dibs on the phone <-> cradle conversation ? The holy grail of true bluetooth integration is but a step away. All we need is

- RG69 adaptor
- Phone installed emulation
- audio breakout connector for the parrot

The irony is that any old pile of junk PSE module could be fooled into thinking it has a phone therefore old users, new users and retrofitters alike can tap into this concept. I would also be willing to wager that the PSE has a self test mode that loops itself and does the same thing without any external inputs.

The only question is ... how do we use the OEM microphone ?
 
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NEWS FLASH - Parrot Bluetooth goes OEM for MB

Parrot is weeks away from announcing a Mercedes Benz OEM kit. Exciting news for those with BMW envy ...... guess what ..... same system.

By the end of 2nd quarter expect a Parrot / Nokia retrofit for bluetooth. This means that all OEM Nokia systems in the market today can be fitted with a PARROT bluetooth kit in 15 minutes.

:bannana:

It will fit onto the RG69 connection and has only two cables (the other being the aerial of course) to connect directly with the Parrot for a full upgrade. So dont throw anything out just yet.

Parrot is already OEM with

LEXUS (Middle east)
Nissan (Middle east)
BMW (global)
 
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miro said:
It will fit onto the RG69 connection and has only two cables (the other being the aerial of course) to connect directly with the Parrot for a full upgrade. So dont throw anything out just yet.

Just to clarify. The new Parrot system is replacing the old Nokia box, not connecting to it.
 
miro said:
Just to clarify. The new Parrot system is replacing the old Nokia box, not connecting to it.

Hello all. I am a new user of this forum and I adhered to it searching just for this, parrot integration with the steering wheel controls. I am impressed with Dave's abilities to sneak out the CAN protocol and the way he knew how the steering control communication works. But looking at the solution I can more easily implement, I think that the IC DIY option is not the proper one for me. I would be willing in buying one of those if Dave changes his mind on that, but in the meantime I am really interested in knowing which product has parrot launched as an OEM integration with MB. Does any of you have more information about that? Thx.

:cool:
 
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