Does anyone know if there is a cable available to use the XDA II with this brand of car kit. I have searched around but cant seem to find any info.
THere are still no connector from Mr. Handsfree so I made my own one !
have a look here :
http://forum.xda-developers.com/viewtopic.php?t=5676&highlight=handsfree
Nice ! Did you make a 2,5mm to a RJ45 (?) cable ?
If you could please post the pin layout of the Mr. Handsfree, if have some Nokia 8110 headsets i can use the 2,5mm plugs from....
Mr. Handsfree
Here are a .jpg with the pin layout of the converterbox for Mr. Handsfree.
The diagram is not complete, but this is not important as it is only the pin connections which are important.
The right side is the RJ 45 plug's wire colors and the left is the plug for the phone.
If your 8110 has the 2.5mm jack connector then I will guess it is connected to pin 3,4 & 5 on the phone side of the converter.
My Nokia 6210 has a different connector than the 8110.
I dont think it is a good idea to connect the MDA directly to the RJ45 connector as there was some noise generated from the phone. The noise disappered when the MDA was connected on the phone side of the converterbox.
At some point in time there will most likely be an "Original" connector from MR. handsfree with charging capabilities but for now we have to DIY.
BTW. I tried to update my phone with the latest ROM and the sound was lost through the connector, so I am back to version 1.03.00.
Good luck with the project.
xda orbit to nokia 6310 hands free conversion
Hi BOB. I have an xda phone and a nokia 6310 state-of-the-art hands free in my car. I can be your guinea pig for conversion if you are willing to take a guess at the wiring mode. Just remember that xda uses same cable (usb 4 wire) for the hands free. Your help is much appreciated.
Cheers
Marius
Hi All
I, like many people, use my orbit and now orbit 2 as an mp3 player. I have a few headphone adapters which allows me to use normal headphones which sound much better than the stock o2 ones. Not a bad solution however when a call comes in you have to unplug the headphone adapter to allow the phone mic to work. Having the adapter plugged in disables the phone mic.
I was wonder if anyone had any ideas on how I could 'fix' the headphone adapter so that it no longer disabled the mic. The theory is that should a call come in i can keep my headphones on and simply hold the phone up to my mouth to talk. My look a bit odd but it will save all that unplugging/replugging.
Thanks in advance
Jeff
found this...
http://www.tracyandmatt.co.uk/blogs/index.php/2006/09/10/htc_hermes_usb_connector_pin_config
assuming it's the same...do you think I just break off pin 1 ?
thanks again.
Jeff
wertert said:
found this...
http://www.tracyandmatt.co.uk/blogs/index.php/2006/09/10/htc_hermes_usb_connector_pin_config
assuming it's the same...do you think I just break off pin 1 ?
thanks again.
Jeff
Click to expand...
Click to collapse
I doubt it's that simple. I really, really wish I could find it again but floating around somewhere on the web is a site that has a proper wiring diagram as well as just the pinouts.
From memory I think there's a pin held low (or maybe high) somewhere to tell the device that the adaptor is plugged in. I don't think that just the presence of a connection to pin 1 is what does it.
My suggestion is to open up the plug on your least-favourite adaptor (to experiment in case you trash it) and look for internal links between pins. My guess would be that either one of pins 4 or 5 is not a genuine Gnd signal but is actually a pin that is held low (i.e. set to Gnd) by the headset adaptor via a link from one of the genuine Gnd signals coming in on USB pin A or the other one of pin 4 or 5 . Alternatively one of pins 4 or 5 might be asserted high by a bridge to pin E. Finally the USB NC pin (pin B) might be the detector pin and asserted either high or low via a link to one of the Gnd or +5V input pins.
What you really have to hope for though is that two of the above are true because if there is only a single pin on the plug that is either asserted high or low to allow the detection of the presence of the headset then you're really out of luck because it is then extremely unlikely that it will separately detect that the speakers are plugged in but the mic isn't so, when you identify and disable the appropriate link, you will probably also re-enable the speaker in the handset as well as activating the mic.
All the above is guesswork I'm afraid, but I am a computer hardware designer so it's not totally uneducated guesswork, so you really will have to experiment or find that wiring schematic I spoke about, but the basic message is to look for links asserting some detector pin (or pins) high or low on the connector.
- Julian
P.S. I can't think of any way that you'll break anything just by cutting links but be very careful not to short out any existing connections because that could damage your device and don't create your own extra links unless you know exactly what you're doing.
hey guys & girls
i require the above so i can make my own output cable for a car docking station.
does anyone have anything because the ones at pinout.ru ( dont really know the page number) are a little confusing because it seems that the mic pins and the tv-out pins are the same.
basically what i want to do is have the screen output to the 8.4 inch screen i have with the mic going off to an external mic and the auiod outputs going to the amp that powers the car speakers.
this would be an easy car - pc all that would be needed after that would be to somehow get the samy to recognize the 8.4 screens touchscreen but i think thats a wish to far...
anyone think its a possibility ?
TV-Out is the same pinout as the Mic, you can't use the mic when on TV-Mode and vis-versa.
damn,,,,, so no hands free through speakers then.. blue tooth only.
does anyone know if we can plug devices into the usb ? i mean like keyboards and external touchscreens mice anything ?
Hello.
I'm trying to figure out and possible find a solution for why some headphones don't work with some phones?
For example a very well known brand Scullcandy. Their line of Skullcandy FIX Bud headphones work fine with Galaxy S2, but don't work with Galaxy S3, they also don't work with LG Nitro HD.
On GS3 they work for media playback, but when trying dial out or answer a call, the phone totally disconnects the headphones, the icon that shows when headphones are plugged in is no longer showed and at that point one has to physically re-plug the headphones in order to use them for media playback.
It does sound like phone's software issue, I sure hope so and there is a way fix it...
Another phone I had bad experience was LG Nitro HD. Even though the phone is totally waste of money it don't accept any iphone type headphones, they might work for playback, but mic or buttons don't work.
So what could possibly causing this issues?
I've tried post on phone related sections, but got no answers...
I also tried contact Samsung support regarding this issue, but they simply blew me off with "we don't provide support for 3nd hardware". Now I'm waiting for an answer from Skullcandy support.
Any ideas?
Thank you.
Probably the 3-pin layout of your phone. some are really weird in the way they work
x10man
There might be a couple reasons. The first is the connector. Some headsets use a three pole connector while others use a four pole connector. The other issue will likely be he pin out. The headphone jack might be a standard mechanical interface but not electrically. Both are hard problems but an adapter cable might help you.
All headphones connectors in question are 4 pin type, without using micrometer they look identical. Since all these headphones works fine in mp3 players, where only 3 pin connectors used, means the 3 out of 4 pins are in proper places and connected properly inside the wire.
So, without taking headphones apart it seems physically there is nothing different between them.
In addition, if there would be something physically wrong, it would not explain, why SGS3 sense when Skullcandy headphones connected, it shows headphones icon, but when a phone call initialized it "forgets" about it.
It sure seem to me like software related..
Hallo,
I got my new MTCD head unit. Its this one:
http://www.erisinwholesale.com/special-car-dvd/audi/erisin-es3078a-7-android-51-car-dvd-gps-dab-for-audi-a4-497.html
I have dont done much testing yet, but i want to connect my external mic first.
The HU is delivered with an small additional harness that included a external mic and a 4-pin connector on the other end. (see attached photo - connector E)
I want to cut this harness and solder a standard mic-jack onto it.
(and then desolder the internal mic)
Does anyone know the pin-out of this 4-Pin connector?!
I guess this is standard on many of the newer MTCD units?!
check with ohmeter the ohm value between gnd and signal and use similar specs mic.
Dear OP, Im very interested in you project. I have nearly the same unit but for A3. I also wanted to wait with the mic until i come up with a better solution than using the one which came with it. Do you know how to disable the standard handsfree function of the car? Now the "Mode" button always messes with the Mode of the headunit. Where is the cars' mic plugged into? How can I access this spot?
in some (i think it was russian) forum i came across the ROM wich connects via Bluetooth to the standard handsfree of the car before calling. But with the standard Rom so far i was not able to conect to it.
PS: Does your unit snap into the DIN booth like the original radio? Mine does not snap in and therefore is kinda loose
i am not sure how to measure the correct ohm value of a mic.
If i connect my multimeter to the factory ext. mic, i see 1,325 kOhm
If i connect it to my parrot mic, i see 1,660kOhm (i have attached a photo of this mic)
But anyhow, i am more interessted in the 4-pin plug, this head unit uses for the ext. mic. hook up.
As you can see on the attached photos, the lower two pins are jumpered.
And the upper two pins go to the mic.
I also found, that one of those two lower pins is a 5V supply on the head unit.
So this harness of the factory external mic seems to have some sort of switch function also...
But i am not sure, what it does...
And to answer Mighty_X´s questions:
I have no "mode" button on my head unit. Not sure, what you mean.?!
On my older MTCB unit, i just cutted the wires to the internal mic, and connected my parrot mic to the ext. mic connection.
But here, on this new Erisin MTCD, all connectors at the back of the unit are different...
regarding accuracy of fit:
The head unit didn´t fit in perfectly. Its a little bit wider at the bottom, than the original radio. If you carefully push a little harder you get it into a very good position. The cars dashboard is flexible enough for that. But thats not really a problem and its definitely not loose.
Pedaaa said:
And to answer Mighty_X´s questions:
I have no "mode" button on my head unit. Not sure, what you mean.?!
On my older MTCB unit, i just cutted the wires to the internal mic, and connected my parrot mic to the ext. mic connection.
But here, on this new Erisin MTCD, all connectors at the back of the unit are different...
regarding accuracy of fit:
The head unit didn´t fit in perfectly. Its a little bit wider at the bottom, than the original radio. If you carefully push a little harder you get it into a very good position. The cars dashboard is flexible enough for that. But thats not really a problem and its definitely not loose.
Click to expand...
Click to collapse
Thanks for your answer. I was refering to the Mode Button on the steering wheel.
Ahh, OK sorry
I only have the standard steering wheel without any buttons, so i can't comment on this
dont worry about 4pin conn, just check that the mic you want to use in head unit support that ohm input, otherwise the sound quality wont be good, just make "test-fail" until you get good result. just connect to 2 wires mic the mic you want to test...
But i do worry about this 4-Pin connector
If you connect the original ext.mic, the lower 2 pins are jumpered.
What internal effect would this have?
Is it just an input, that an ext. mic is connected?!
But why? Would the singals of the mic wont work without this input?
Or will this input maybe disable the internal mic?!
Then we wouldnt need to do the mod, by desolder or cut the internal mic on such units.
Thats just my thoughts, but i haven't done testing yet. Also i am not sure how i could figure it out exactly...
Pedaaa said:
But i do worry about this 4-Pin connector
If you connect the original ext.mic, the lower 2 pins are jumpered.
What internal effect would this have?
[..]
Thats just my thoughts[...]
Click to expand...
Click to collapse
Well, on my unit (Erisin 3047A) the ONLY reason why the lower 2 pins are "jumpered" is purely a mechanical issue: By having 4 wires and tied them together using a cable tie the two upper (small) cables are fixed in place. So: No actual use, just for mechanical reasons.
Did you have a cable tie on your 4 wires? From your pictures I cannot see it, perhaps you removed it?
Well, I just used my external micro from the installation before, and it works great.
Kind regards,
hardcoded74
Hi,
Ok, there were no reasons for my concerns.
I unsoldered the interal mic.
And then i soldered a headphone jack to the two wires of the original ext. mic harness.
The didnt touch the lower jumper wire.
And now:
It works great with my parrot mic! No echo, and really good quality in general! I am very happy now.
I also now installed a time-delay-relay for my rear view cam. Now the cam keeps going for apprx. 8 seconds, if i change to forward gears. Thats a great improvement also, that i can recommend
Pic of the modified harness
please poiint out, what headphone you used for this and the cables (by color) you connected to. (red to white for example)
thanks
Hello,
I use a PR2627 Parrot Twin Mic.
I cutted the standard ext mic and soldered a 2,5mm female jack instead of it. The white lead from the original cable goes to the "left" connection on the jack.
So the tip of the male 2,5mm pin will contact the white cable.
The black lead goes to the ground connection of the jack.
Thats it.
So, i use this Stereo mic only as a mono mic.
But it works great.
But i have to say also the original ext. mic. isnt that bad, if you disconnect the internal one.
I want to try to use the original Audi microphone. The ohmmeter says the Audi is 7,9kOhm and the mic wich came with the Erisin is 0.9kOhm. Is it possible to get good results here? What do you guys think?
I ll have to search were the wire goes wich is not to easy in Audi A3 (at least for me)
Edit: Like I thought the quality of the original mic used with the new head unit is pretty poor. dumb and very quiet. Not sure now if i get another mic, use the erisin one or maybe try a mic amplifier..
So if I understand this correct, the headunit keeps using the signal from the internal mic, even if there is an external mic connected? In essence, it gets mixed? No wonder everybody on the other end of the line is complaining that they don't understand a word I'm saying.
Is it easy to unsolder the internal mic?
HVB83 said:
So if I understand this correct, the headunit keeps using the signal from the internal mic, even if there is an external mic connected? In essence, it gets mixed? No wonder everybody on the other end of the line is complaining that they don't understand a word I'm saying.
Is it easy to unsolder the internal mic?
Click to expand...
Click to collapse
Can someone confirm this or disagree?
Mighty_X said:
Can someone confirm this or disagree?
Click to expand...
Click to collapse
You couldnt find the answer in the entire thread devoted to this issue Yes; if an an external mic input is factory, it is in parallel with the internal mic. This is a rookie design mistake.
Is there a way to change sensitivity of the external mic input? Did not find an option in the factory settings..
I unsoldered the internal mic now too. After first tests I can say say that doing that had no effect on the input sound quality or anything at all. And i found out that the internal and external mic wich came with it arethe same piece of hardware. I still wonder if there is a way to increase intensity of the mic without going over hardware amplifier. Have a kinda newer Ersisin model I guess