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#45302 - 06/11/2001 08:03 Honda Steering Wheel Remote Question
kazama
enthusiast

Registered: 11/11/2000
Posts: 202
Loc: Boston, MA
OK, this is a not so newbie question from a very newbie to remotes type person. I posted the question of which signals are sent to the Honda Stereo from the remote and this was one of the answers I got back.


green/red at the radio harness is the steering wheel control. Just tie in there. Signals are resistors that get pulled to ground when a button is pressed. Factory resistors are:
100, 270, 620 and 3.6k (IIRC)
Take a look at this:
http://peripheralelectronics.com/images/products/peswi3%20revised%205_01.pdf

Video on navi conversion *NOTE: Tony should follow this link!*
http://www.odyclub.com/ubb/Forum4/HTML/000130.html


So the top link suggests, I think, that I should rewire the remote to the IR reciever then program the Empeg to recognize the ir commands for the remote. Is that right? If so, where would I mount the IR device? Or should I try to connect the wires from the remote to a plug ala the Sony Remote if the signals are the same? Or am I just missing the point all together?

The bottom link goes into detail on how to hook up a DVD player to output to the screen the Honda/Acura Navigation system uses. A very interesting read IMHO.

Greg

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#45303 - 06/11/2001 08:39 Re: Honda Steering Wheel Remote Question [Re: kazama]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31594
Loc: Seattle, WA
I don't see why you're discussing IR here? I thought the first one is talking about wired steering-wheel controls?

Looks a lot like the Sony Stalk arrangement, in fact. Wonder if it'd plug straight into the tuner module?
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Tony Fabris

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#45304 - 06/11/2001 09:13 Re: Honda Steering Wheel Remote Question [Re: tfabris]
tms13
old hand

Registered: 30/07/2001
Posts: 1115
Loc: Lochcarron and Edinburgh
In reply to:

Looks a lot like the Sony Stalk arrangement, in fact. Wonder if it'd plug straight into the tuner module?




The principle is the same, but the values are very different. I calculated some values to adapt my (Peugeot) stalk, which has 4 switches to a common rail, to be usable with the empeg tuner:

http://empeg.comms.net/php/showthreaded.php?Cat=&Board=install&Number=43411&page=0&view=collapsed&sb=5&o=7
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Toby Speight
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#45305 - 06/11/2001 10:40 Re: Honda Steering Wheel Remote Question [Re: tfabris]
kazama
enthusiast

Registered: 11/11/2000
Posts: 202
Loc: Boston, MA
I don't see why you're discussing IR here? I thought the first one is talking about wired steering-wheel controls?

I was but then his response include the URL http://peripheralelectronics.com/images/products/peswi3%20revised%205_01.pdf which talks about connecting the remote to a converter which changes the signal to IR for interfacing with several different types of units. That's how I got confused becuase I would rather do this in a non-IR.

Looks a lot like the Sony Stalk arrangement, in fact. Wonder if it'd plug straight into the tuner module?

That's what I thought but the remote is wired to the wiring harness so you would need to splice the wires into the proper plug for the Sony Stalk then set the values to match the signals which seem to be very different from the Sony signals. I could be wrong tho and we would both have a plug and play solution

Greg

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#45306 - 06/11/2001 14:57 Re: Honda Steering Wheel Remote Question [Re: kazama]
bonzi
pooh-bah

Registered: 13/09/1999
Posts: 2401
Loc: Croatia
If you have access to your steering wheel remote's resistors and/or wiring to individual buttons, Toby's respons in this thread and this Sven's entry on riocar.org should be enough to improvise something similar to Toby's solution.
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Dragi "Bonzi" Raos Q#5196 MkII #080000376, 18GB green MkIIa #040103247, 60GB blue

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#45307 - 06/11/2001 15:16 Shift Knob Remote Question [Re: bonzi]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
Okay, this "racerboy" shift knob was brought up a long while back by Jeff Wickiser... and it was mentioned that it could be interfaced via IR to the empeg.

Now that we have that tuner interface schematic... and looking at that shift knob.... what would it take to be able to plug it straight into the tuner to emulate the front panel buttons on the empeg???
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|| loren ||

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#45308 - 06/11/2001 15:21 Re: Shift Knob Remote Question [Re: loren]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31594
Loc: Seattle, WA
It would never emulate the front panel buttons, it would only emulate a subset of the Sony stalk buttons (slightly different).

However, all that you would need is to know the resistor values of the Sony stalk and then assign each of the racerboy buttons to a given resistor value. Then it could wire directly into the tuner module.

I'm interested in these values, because I'm considering making my own "stealth" buttons to wire into the tuner module. They would be very small and be integrated with my car's existing steering-wheel controls. All I need is to find some very-low-clearance buttons. Anyone have any ideas on where I can find some?

Should the resistor values be published at the developer site somewhere?
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Tony Fabris

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#45309 - 06/11/2001 15:29 Re: Shift Knob Remote Question [Re: tfabris]
bonzi
pooh-bah

Registered: 13/09/1999
Posts: 2401
Loc: Croatia
Should the resistor values be published at the developer site somewhere?

They can be easily calculated from tables in this Sven's guide. I'll do that in few minutes and post it.
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Dragi "Bonzi" Raos Q#5196 MkII #080000376, 18GB green MkIIa #040103247, 60GB blue

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#45310 - 06/11/2001 15:36 Re: Shift Knob Remote Question [Re: tfabris]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
ahh... i was under the impression that there were commands... either in the Sony interface or in the serial connection... that would control the empeg as the front buttons do. But after checking out the Developer info again, i see there isn't... it's just FF/RW/volume etc.. Argh. So much for that. So i guess the next thing would be to wire it to an IR repeater or the like. Soo... what would THAT take?

(i plan on taking som electronics night classes around here soon so i can stop bothering you guys about this stuff=]) Thanks for the replies Tony.
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|| loren ||

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#45311 - 06/11/2001 15:44 Re: Shift Knob Remote Question [Re: tfabris]
loren
carpal tunnel

Registered: 23/08/2000
Posts: 3826
Loc: SLC, UT, USA
All I need is to find some very-low-clearance buttons. Anyone have any ideas on where I can find some?

www.allelectronics.com

Do a search for "buttons"... there's quite a few mini-pc mount buttons that might work for ya.
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|| loren ||

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#45312 - 06/11/2001 15:46 Re: Shift Knob Remote Question [Re: loren]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31594
Loc: Seattle, WA
Thanks, I'll check there.
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Tony Fabris

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#45313 - 06/11/2001 16:13 Re: Shift Knob Remote Question [Re: tfabris]
bonzi
pooh-bah

Registered: 13/09/1999
Posts: 2401
Loc: Croatia
Sorry for delay... Here are resistor values, finally (I hope I got them right):
cmd byte    R       R1      R2   button


3a 58 6477 5635 7372 back/front
af 175 48125 43233 53811 middle
9a 154 33545 30430 37053 front/back
2a 42 4338 3616 5101 att
5a 90 12000 10807 13283 back track
48 72 8656 7683 9695 fwd track
16 22 2077 1473 2714 source
84 132 23610 21488 25949 vol back
6e 110 16690 15152 18360 vol fwd
First two columns are command bytes (in hex and decimal), then ideal value of the resistor (in ohms), then minimal and maximal value that should still be recognised by 2.0 kernel (it is wise, of course, to use much smaller tolerances; 1.03 kernel is about three times more strict).
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Dragi "Bonzi" Raos Q#5196 MkII #080000376, 18GB green MkIIa #040103247, 60GB blue

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#45314 - 07/11/2001 05:44 Re: Shift Knob Remote Question [Re: bonzi]
tms13
old hand

Registered: 30/07/2001
Posts: 1115
Loc: Lochcarron and Edinburgh
See my post for combinations of standard (E12) values for the functions I implemented. Mine were all series combinations; all the parallel combinations were further from the ideal values (or required more resistors).

If anyone wants to copy any text or diagram from the BBS to riocar.org, consider permission given.
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Toby Speight
030103016 (80GB Mk2a, blue)
030102806 (0GB Mk2a, blue)

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#45315 - 07/11/2001 07:15 Re: Shift Knob Remote Question [Re: tms13]
bonzi
pooh-bah

Registered: 13/09/1999
Posts: 2401
Loc: Croatia
I used your diagram as sanity check of my figures: volume up/down and track skip/back sounded reasonable .
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Dragi "Bonzi" Raos Q#5196 MkII #080000376, 18GB green MkIIa #040103247, 60GB blue

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#45316 - 07/11/2001 07:20 Re: Shift Knob Remote Question [Re: tms13]
bonzi
pooh-bah

Registered: 13/09/1999
Posts: 2401
Loc: Croatia
Indeed, it would be a good idea to supplement Sven's article on Sony stalk on riocar.org with ideal resistor values, Toby's solution for 4-button remote and perhaps definition of E12 standard resistor series. Of course, if someone knows the whole Sony resistor network (or is able to reconstruct it), it would be perfect.
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Dragi "Bonzi" Raos Q#5196 MkII #080000376, 18GB green MkIIa #040103247, 60GB blue

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#45317 - 07/11/2001 09:34 Re: Shift Knob Remote Question [Re: bonzi]
tms13
old hand

Registered: 30/07/2001
Posts: 1115
Loc: Lochcarron and Edinburgh
I've done a little more calculation, finding the following combinations:

Series
functionidealresistorsactual
vol+1669012K + 4K716700
vol-2361018K + 5K623600
track+86568K2 + 4708670
track-1200012K12000
front/back3354533K + 56033560
middle4812547K + 1K248200
Parallel
functionidealresistorsactual
source20775K6, 3K32076
att433856K, 4K74336
back/front647718K, 10K6429



I have the Gnumeric spreadsheet I used to calculate these if needed.

Note that I have only tested the four functions I needed, and that I've assumed 0% tolerances on the internal resistor and the sense circuit.
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Toby Speight
030103016 (80GB Mk2a, blue)
030102806 (0GB Mk2a, blue)

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#45318 - 07/11/2001 10:33 Re: Shift Knob Remote Question [Re: tms13]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31594
Loc: Seattle, WA
Sweet. I'll refer back to this when I wire up my custom buttons.

Question: The plug that goes into the Tuner module...

Is it a stereo 1/8" plug or a mono 1/8" plug? If it's stereo, what's the other conductor do?
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Tony Fabris

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#45319 - 07/11/2001 10:37 Re: Shift Knob Remote Question [Re: tfabris]
tms13
old hand

Registered: 30/07/2001
Posts: 1115
Loc: Lochcarron and Edinburgh
The 3.5mm jack plug on the Sony stalk is a stereo one. I think it was Hugo (but can't find the thread) that said that the other (i.e. 'left') conductor is for the shift button. I don't have a Sony stalk to test this, though.
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Toby Speight
030103016 (80GB Mk2a, blue)
030102806 (0GB Mk2a, blue)

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#45320 - 07/11/2001 10:42 Re: Shift Knob Remote Question [Re: tms13]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31594
Loc: Seattle, WA
So which is the conductor with all the resistor buttons? Is that the tip or the middle sleeve?
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Tony Fabris

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#45321 - 07/11/2001 10:49 Re: Shift Knob Remote Question [Re: tfabris]
tms13
old hand

Registered: 30/07/2001
Posts: 1115
Loc: Lochcarron and Edinburgh
I think the jack plug is arranged:
Tip ('right')
resistor sense
middle sleeve ('left')
shift sense
ring ('common')
ground


Can someone with a geniune Sony stalk to hand (Hugo?) confirm this, please?
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Toby Speight
030103016 (80GB Mk2a, blue)
030102806 (0GB Mk2a, blue)

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#45322 - 07/11/2001 12:54 Re: Shift Knob Remote Question [Re: tms13]
altman
carpal tunnel

Registered: 19/05/1999
Posts: 3457
Loc: Palo Alto, CA
That's correct.

Hugo

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