View Poll Results: What is your interest in this project?

Voters
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  • Yes, I am willing to for out $25 now for the current v2.0 product

    22 33.85%
  • I have a Toyota/Scion but would rather wait for it to support more makes

    2 3.08%
  • I have another make, and would like to see this project support my vehicle

    44 67.69%
  • I'm not interested in this project at all

    0 0%
Multiple Choice Poll.
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Thread: Universal Steering Wheel to USB Controller + More

  1. #1
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    Universal Steering Wheel to USB Controller + More

    Hello,

    We've almost finished the Toyota/Scion Steering Wheel to USB controller, but along the way, I discovered many other makes use the same resistive ladder system.

    Let's begin by summarizing the work done so far:

    First, Version 1.0 of the controller is complete. The product looks like this, connected:



    It emulates a HID keyboard and consumer control device. Therefore, no drivers are needed, and it runs on any operating system, and appears as a USB composite device:



    It is controllable/reprogrammable via a user-interface, so the device will not become obsolete until the hardware does:





    Okay, now onto version 2, which was in development until now. The goal was to reduce the layout size and improve reliability as well as reduce noise on the ADC lines. The design was completed with a LOT of help from blues:



    The bill of materials w/o labor and shipping, as well as without the pcb comes out to around 9$ (this hasn't been updated to reflect some cheaper parts, and the mega is a TQFP)



    The end cost is about $25 per completed board, shipped. Unfortunately, I would have to purchase about 140 of them, which is quite a bit of investment if there aren't going to be enough people to purchase them.

    And that's why we're here. If we can get some help from owners of other car makes to measure the resistor ladders on their steering wheel controllers, we can probably gather more interest to make the controller across a wider array of cars. Not only that, if you ever decide to change makes, this controller would still be useful for you. It might involve a small increase in cost by no more than $5.

    I'd like to note that this project is open source (i.e. i'll be releasing the firmware source soon). Also, the end product might actually have a few extra ADC/digital inputs, so it might be able to measure illumination voltage (to control brightness on your monitor) and maybe even give battery status to windows (like a UPS does when you plug it in).

    Anyway, if about 50 people are willing to pay for the product as-is now, there'd be no problem in getting it done. Otherwise, we can try to get measurements for other makes. Anyway, that's what the poll is for, so vote =). Thanks!

  2. #2
    Variable Bitrate Bimmerstyle's Avatar
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    I have a BMW and I'm using iBusRR to get them to work.

    My friend however has a VW and I would die for having the same functionality as I have. Only problem is, he doesn't have a multifunction steering wheel yet so I can't measure things for you. He is willing to buy one however if I can guarantee him I can make it work. He would be willing to pay 25$ for it without hasitation. I'm sure of that.

    So if it's coming available for VW you have an interested party here!
    BMW 525tds -Biostar I94GM-I4 -Celeron M44O 1,86GHz, M2-ATX, 1Gb, 320GB -HQCT RDS tuner -Creative Extigy -iBus controller -Lilliput 7" touchscreen -DLS Ultimate A7 amplifier -Focal 130K, 130V, 27V2 speakers

    Bezel Worklog-My Install -iDrive F01 RR Skin

  3. #3
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    Jun 2007
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    I was kinda torn. I want one now and would be willing to wait for it to support more makes of cars. Either way I will be buying one, tho the illumination and UPS functionality would probably make me want to wait, or buy another.

  4. #4
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    Quote Originally Posted by Bimmerstyle View Post
    I have a BMW and I'm using iBusRR to get them to work.

    My friend however has a VW and I would die for having the same functionality as I have. Only problem is, he doesn't have a multifunction steering wheel yet so I can't measure things for you. He is willing to buy one however if I can guarantee him I can make it work. He would be willing to pay 25$ for it without hasitation. I'm sure of that.

    So if it's coming available for VW you have an interested party here!
    Right, cars with modern buses such as iBus don't need this. The VW, I'm assuming doesn't have this and probably uses the same resistor ladder. Well, let me know once he gets it so we can figure out the values.

    The main thing is adjusting the resistors going in to the ADC, which might have to be tuned to get a good separation of values depending on the resistors used by the car.

  5. #5
    Variable Bitrate
    Join Date
    Jan 2006
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    345
    Sign me up. I've been following the other thread for the development of the Toyota version. It would help me so much in my Camry because I still find myself pressing the steering wheel volume buttons and not hearing any difference!

    Pricing is decent too. I'm sure we'll be able to pull a few more members.

  6. #6
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    Dec 2004
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    hey, how about hondas ? Specifically, 8th gen civic/fn2 type r ?

    i've seen some doohicky that converts the steering wheel buttons to iso output...

  7. #7
    Variable Bitrate csfile's Avatar
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    Feb 2009
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    if i could vote...i would for "I have another make, and would like to see this project support my vehicle"

  8. #8
    Variable Bitrate csfile's Avatar
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    Quote Originally Posted by no2chem View Post
    I discovered many other makes use the same resistive ladder system.
    any chance you have a list of these makes that you know so far?

  9. #9
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    Quote Originally Posted by aijii View Post
    hey, how about hondas ? Specifically, 8th gen civic/fn2 type r ?

    i've seen some doohicky that converts the steering wheel buttons to iso output...
    yeah, most likely the resistor ladder is the same across all hondas. do you know where a copy of the electrical manual for your honda is?

  10. #10
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    Feb 2008
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    I am interested in version 2 as well. $25 is affordable. I have a 2005 Mitsubishi Endeavor. Let me know, and I'll send you the resistor values.

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