Hi All,
If this has been done before please ignore.
I have been doing a fair bit of research on the NEXUS 7 as a car head deck but no diagram to go off.
Can you please advise if the Diagram below is accurate or if i need to amend certain areas to make it work. The NEXUS 7 will be slide in slide out.
Subscribed to see what others have to say. I am hoping to skip the head unit and sub and go right from the N7 to the amp. My worry is getting clean audio out of the N7 while it gets power.
I have a ground issue somewhere currently where if I am charging a device and have it plugged into the aux port of my head unit, I get tons of static and noise.
Sent from my SCH-I605 using Tapatalk 2
Only comment I'd make is that if you're going to use the POGO pins to power it why not grab the audio from there also? Seems safer to use a non intrusive (without a plug going into the Nexus) method over sticking in the headphone jack.
Sent from my Nexus 7 using Tapatalk 2
He probably didn't know he can do that. You can also use a USB dac and get audio that way. Probably much cleaner and it will also fix his ground loop issues.
I owned a Galaxy Tab before the N7 and it was MUCH WORSE at adding noise to the headphone output. The N7 is much much better at isolating that ground.
NRGZ28 said:
He probably didn't know he can do that. You can also use a USB dac and get audio that way. Probably much cleaner and it will also fix his ground loop issues.
I owned a Galaxy Tab before the N7 and it was MUCH WORSE at adding noise to the headphone output. The N7 is much much better at isolating that ground.
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Correct i didn't even know what those 2 pins were for Audio or if they were for D+ & D- so thanks I have adjusted the picture accordingly. If you could check that out that would be great. After i get everything from Evil Bay this week i will do lots of pictures and full write up.
Thanks So excited to get started.
Wilkie2013 said:
Correct i didn't even know what those 2 pins were for Audio or if they were for D+ & D- so thanks I have adjusted the picture accordingly. If you could check that out that would be great. After i get everything from Evil Bay this week i will do lots of pictures and full write up.
Thanks So excited to get started.
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so are you saying that the POGO pins are THAT simple? and here i was building a dock for my N7!
if this is true, you rock man!
Unless your drawing is just an example, your speaker wiring needs to be changed so you're not daisy chaining the signal. Run 'home runs' to each driver.
Sent from my Nexus 7 using xda premium
Also there's no need as in actually you can't do that have a DAC on the audio lines. They are analog L+ and R+ with the ground being common between power-, L- and R-. Look for the POGO thread over in the accessories subforum along with one on a homemade dock for more info. There is no USB on the POGO pins.
Sent from my Nexus 7 using Tapatalk 2
Wilkie2013 said:
Correct i didn't even know what those 2 pins were for Audio or if they were for D+ & D- so thanks I have adjusted the picture accordingly. If you could check that out that would be great. After i get everything from Evil Bay this week i will do lots of pictures and full write up.
Thanks So excited to get started.
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Close, but not there yet. The 2 middle POGO pins are Audio +/-, and won't connect to a DAC as it's already an analog output. You can connect the DAC via USB though, and get the highest quality audio possible out of the N7.
HOWEVER: if you want to charge AND use OTG (DAC and external storage will connect via OTG), then you'll need a kernel which will support that. Running power through the POGO pins also requires a special kernel. This is the only one I know of:
http://rootzwiki.com/topic/37755-timurs-kernel-usb-host-power-management-usb-audio/
The fixed installation is the best choice for car applications.
Alternatively you can use audio out and charge through the POGO, and use a kernel like faux123's kernel to charge and have USB OTG (but won't work with a USB DAC), though there are limitations to this setup.
EDIT: I've attached a diagram of my current car setup.
junooni said:
so are you saying that the POGO pins are THAT simple? and here i was building a dock for my N7!
if this is true, you rock man!
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MetalMan2 said:
Close, but not there yet. The 2 middle POGO pins are Audio +/-, and won't connect to a DAC as it's already an analog output. You can connect the DAC via USB though, and get the highest quality audio possible out of the N7.
HOWEVER: if you want to charge AND use OTG (DAC and external storage will connect via OTG), then you'll need a kernel which will support that. Running power through the POGO pins also requires a special kernel. This is the only one I know of:
The fixed installation is the best choice for car applications.
Alternatively you can use audio out and charge through the POGO, and use a kernel like faux123's kernel to charge and have USB OTG (but won't work with a USB DAC), though there are limitations to this setup.
EDIT: I've attached a diagram of my current car setup.
Click to expand...
Click to collapse
Thank you for your diagram you've definately got alot going on in your car Looks good.
This is what i have bought.
Nexus 7
FiiO E10 USB DAC
Clarion EQ746
3ft male to female USB connection
3.1A Dual USB Charger
Micro USB female
AUX to RCA ( Not sure what ill be using this for now )
Pogo Pins
Magnets ( Not sure if I'll use these yet )
Will the above work? I've read way to many forums on this subject and no one is actually clear.
If i cut up and strip back the rubber around a Male USB can i use this as my POGO pins connector to the USB DAC + Kernel suggested?
*phillip1953* It is just a quick drawing and i can assure you this won't happen when installing.
Everyones input is greatly appreciated Thank you.
I think I have a working diagram to go off. On a positive note my NEXUS 7 arrived today Wohoo.
Also when i get free time i will also create a Nexus 7 dock with built in speakers using the OEM POGO pins?
Wilkie2013 said:
I think I have a working diagram to go off. On a positive note my NEXUS 7 arrived today Wohoo.
Also when i get free time i will also create a Nexus 7 dock with built in speakers using the OEM POGO pins?
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You really need to read the whole thread that MetalMan posted above. It will show you what you're doing wrong, and give you more to think about.
EDIT:
I really wouldn't charge off the pogo pins if I were you. Get a USB OTG + Charging Y Cable and just plug/unplug that as needed.
Related
Any chance we will see a combo cable that would allow charging via usb/and also provide audio out? Id like to run a charging cable behind the dashboard of my car for docking in a cradle, and also have audio out for the auxiliary input to the headunit without having to run a second wire.
Not that running a second wire would be much of a hassle, but would prefer a cleaner look when docked and one less wire when not in the dock
I wish Samsung had put some thought into their car dock. Id be happy to buy the official dock if they hadn't dropped the ball on this one.
It was easy to convert the car dock so it has audio as well.
If You seek on my posts You will find a how to.
Sorry to resurrect an old thread, but I couldn't find the howto. I would like to mod the OWM car dock to allow audio output, and I'd appreciate any help in such direction.
Ernesto de Bernardis
N900 - Galaxy Tab 7"
i have this one
but u can find even cheaper on that site
hey, quick question: does it work only for video? or power point as well? thank you
it does
its a good alternative to the dock even if its not HD
Do I get my music through this cable? Or does it work with combined video audio files only?
Dieter
4exess said:
i have this one
but u can find even cheaper on that site
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it look's nice, how is the quality?
zeb crs said:
It was easy to convert the car dock so it has audio as well.
If You seek on my posts You will find a how to.
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Click to collapse
i searched through a ton of your posts and didn't see anything besides the pinout. my question is how do you take apart the plug to get to the connector, and are all the pins available to solder to?
http://forum.xda-developers.com/showthread.php?p=9985704#post9985704
well here is the post where the gentleman posts to replace a resistor to get it to output audio to the dock. the only question left is how to take the thing apart, whether it comes apart nicely or i have to break out the dremel...
Not sure if you need the same as I do, but my idea was also to have a USB charging plug and an audio-out jack. It wasn't easy, but I found this:
http://www.ebay.es/itm/300574404789...XX:IT&_trksid=p3984.m1436.l2649#ht_1470wt_972
I got one off Amazon, some off brand but it gives a terrible hum in the audio and the tab doesn't see it as a dock.....still looking for a solution
Sent from my EVO 4G Supersonic
Since the cable idea didn't work out, I decided to work on a couple of other items for the Streak.
I have spec'd out an adapter for us, so that we could use the immensely huge iFail (iphone/ipod/ipad) accessory market. Things like Speaker/radio docks, et al.
We would plug our usb end into the adapter, and the other end of the adapter is fitted with a 30 pin apple female connector. I am also adding micro/mini usb..so that the adapter can be used with more devices Please tell me what you think about the cord length.
PLEASE NOTE: In this picture, the iphone end is "male"..it would be FEMALE for us!!
How about no cable but a jack type affair on the adapter so you could plug a cable into the adapter? or a short tail with plug for cable?
Bohemian said:
How about no cable but a jack type affair on the adapter so you could plug a cable into the adapter? or a short tail with plug for cable?
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That is what I really wanted..... but it is very difficult for the factory to do, and would not be cost effective....like 5x the price (without even knowing the price yet...lol)
Muscleshop said:
That is what I really wanted..... but it is very difficult for the factory to do, and would not be cost effective....like 5x the price (without even knowing the price yet...lol)
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Great work, but I would be happy to pay the 5x the price for just a streak to iPhone adapter, aslong as it was under 25 gnome
Sent from my Dell Streak using XDA App
How many pins do you plan on passing though?
USB/Power/Line out?
I'd be interested in an adapter too.
Best would be a small Female Dock <-> Male PDMI block (but as you said it might be unreasonably expensive)
How about a Female Dock <- short cable -> Male PDMI cable? Is that the plan?
Have you inquired about a simple Male PDMI <-> micro (or mini, i forget which is which) block? Along the lines of this but with PDMI/USB. Or also as a short cable of it's not reasonable price?
If you can only do a short cord + 2 connectors like the picture, can you do just like the picture of about ~1 inch?
I'm definitely interested in seeing how this plays out
TheManii said:
How many pins do you plan on passing though?
USB/Power/Line out?
I'd be interested in an adapter too.
Best would be a small Female Dock <-> Male PDMI block (but as you said it might be unreasonably expensive)
How about a Female Dock <- short cable -> Male PDMI cable? Is that the plan?
Have you inquired about a simple Male PDMI <-> micro (or mini, i forget which is which) block? Along the lines of this but with PDMI/USB. Or also as a short cable of it's not reasonable price?
If you can only do a short cord + 2 connectors like the picture, can you do just like the picture of about ~1 inch?
I'm definitely interested in seeing how this plays out
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Click to collapse
This current plan (still working on actual dock too, separately) is:
Female iFail 30 pin <--cable --> Female Standard USB + Female Mini USB + Female Micro USB (so it appeals to more devices)
Planning on Charging/Sync/Audio
Does that answer it?
Sounds good to me. Count me in.
May I suggest a Male PDMI -> Female USB Block/Cable for connecting USB accessories to the Streak? USB Keyboards work by default, the block would just need a short wire to connect pins 2 and 4 of the PDMI together (I believe) to activate USB Host mode.
I think it already exists. Isn't this what you are looking for: cablejive.com/products/Universal-Dock-Converter.html
still would be better for an adapter that plugged into the streak and had female micro/mini.
Something low profile that could potentially be left plugged in and left in place.
Start with a naked streak and if popular make ones for a otterbox defender/commuter, etc
TooMuchFace said:
I think it already exists. Isn't this what you are looking for: http://cablejive.com/products/Universal-Dock-Converter.html
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This is why the internet is so important...lol Thanks for finding this "unicorn"
I searched and searched and searched but could not find it, so I decided to possibly have it made. This is very similar to what I was thinking. Differrences would be the addition of mini & micro usb female connectors with my idea. Also hoping to make it sleeker with just one cord...and for a much better price.
In addition to that, this particular site says:
cablejive said:
The Universal Dock Converter is CableJive's most "hobbyist" product, and as a result we are fairly open about returns, provided you are open about how it has or hasn't worked with your setup.
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Which leads me to believe it was not very well thought out.
Muscleshop said:
This is why the internet is so important...lol Also hoping to make it sleeker with just one cord...and for a much better price.
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I'm in!
(that is all I wanted to say but I can't submit posts with less than 10 characters. See... you didn't have to read this.)
I bought the converter from cablejive. It allows the music to output but doesn't charge on the usb
Sent from my Dell Streak using Tapatalk
Fazziebear said:
I bought the converter from cablejive. It allows the music to output but doesn't charge on the usb
Sent from my Dell Streak using Tapatalk
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I think this would be better if the male end is PDMI
http://www.cablejive.com/products/dockStubz.html
Muscleshop said:
Since the cable idea didn't work out, I decided to work on a couple of other items for the Streak.
I have spec'd out an adapter for us, so that we could use the immensely huge iFail (iphone/ipod/ipad) accessory market. Things like Speaker/radio docks, et al.
We would plug our usb end into the adapter, and the other end of the adapter is fitted with a 30 pin apple female connector.
Click to expand...
Click to collapse
I don't see how that can work.
You need the 30-pin PDMI connector on one end, and the Apple connector on the other. Here's the Streak's pinout http://linuxslate.com/#Dell_Streak_PDMI_Pinout and here's the Apple pinout http://www.allpinouts.org/index.php/Apple_iPod,_iPad_and_iPhone_dock
If it's simply going to connect USB to the Apple connector, then it will only be able to pass USB's 4 pins of data and power - there'll be no video or audio output. What's more, there are already adaptors on the market for USB to Apple, like the one already mentioned http://www.cablejive.com/products/Universal-Dock-Converter.html
Both PDMI and apple dock connectors support line out for audio, only thing it wouldnt take advantage of is video out and USB-OTG
At least what i was interested in was a PDMI <-> Dock directly
This is an intriguing project. I have a question about accessory compatibility.
I've been desperately trying to work out an external, powered mic set up for the Streak. I've established that the headphone jack, like iProducts, doesn't supply phantom power. iProducts got around this by using their dataport to power attached microphones. So in theory, this solution could connect to an iMic and supply the same power.
Here's the q: Is just having a powered mic attached via dataport (through the adapter cable) enough? Or work a supporting app have to be written to tell the device that there's a mic there and also handle the supporting software to make it work?
PDMI only supplies line out from what we know, nor does it have power out.
Even if it could do both, wouldnt it drain the battery pretty quickly?
All I care for is a line out and the charging. Who gives a damn for the video and other stuff. I care more for the pure acoustic bliss.
I would like it to just lie and say its apple so my car play music from it.. using then ipod interface..
Hey guys, I found this cable on Buy and it looks interesting. I have not bought it yet but it does list the Bionic as compatible. Has anyone tried it? If so, please let us know how it is. If not, and you have a spare $10 go for it and bring back word. When mine comes I'll do the same.
Thanks!
So would be used for headsets with microphones, right? I see no reason for it unless that is the case.
It would be for 3.5mm audio out from the USB port w/o buying motos full car dock set.
Sent from my DROID BIONIC using XDA App
Can you charge the phone while using this? It appears to only have a male USB plug, without any provision to plug a charger into a female jack.
i dont think this cable will work, and if it does id be a waste to not just spend another ten bucks and get the moto OEM cable +charging
heres why: the OEM cable not only charges and outputs audio but, more importantnly, *it bypasses the internal SW amp*. this means you are outputting as clean of an analog signal as you can from the phone to be amped directly by your car's components. you lose the ability to DSP/FX/Beats control, but if you use NeutronMP like you should be, it doesn't matter at all
Wouldn't trust the compatibility list, as Apple i-devices are listed as well. I used to be interested in a product like this, but seems redundant to me now... (why not use 1/8" Jack/aux cable?)
Sent from my XT875 using xda premium
http://www.pocket-lint.com/news/46308/asus-nexus-7-audio-dock
Looks like it's going to be just an audio dock, connects through the pogo pins. Good since the single speaker would kinda suck.
no word on HDMI/MHL but i don't think those can work through the pogo pins anyway.
Perfect.
whaaaaat? this tab has pogo pins? cool
Perhaps with it having 4 pins it will allow for data to transfer with it (unlike the nexus with it only having 3 pins).
Threads about accessories go in the Accessories section
neok44 said:
http://www.pocket-lint.com/news/46308/asus-nexus-7-audio-dock
Looks like it's going to be just an audio dock, connects through the pogo pins. Good since the single speaker would kinda suck.
no word on HDMI/MHL but i don't think those can work through the pogo pins anyway.
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So, you find this out and post it on xda without telling me? Jerk.
Micro USB to HDMI Cable Included.
neok44 said:
Looks like it's going to be just an audio dock, connects through the pogo pins. Good since the single speaker would kinda suck.
no word on HDMI/MHL but i don't think those can work through the pogo pins anyway.
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Click to collapse
If you go to the ifixit tear down the have a picture of an included micro usb to HDMI cable. I would link it but the ifixit site is down....
pache711 said:
If you go to the ifixit tear down the have a picture of an included micro usb to HDMI cable. I would link it but the ifixit site is down....
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http://www.ifixit.com/Teardown/Nexus-7-Teardown/9623/2
contrary to popular belief, the asus nexus 7 actually has TWO speakers/drivers. its shown in the first pic. theyre closer together compared to in the memo 370t, but there are two.
i havent seen how theyre hooked up, but theyre either in two channel mode or in single channel mode. chances are that theyre in single channel mode. even if it were in dual channel mode, theyre so close together it wouldnt even matter, it would sound like a nearfield setup.
pache711 said:
If you go to the ifixit tear down the have a picture of an included micro usb to HDMI cable. I would link it but the ifixit site is down....
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Click to collapse
No, unfortunately they screwed up. That's the cable included with the Nexus Q, there's still no HDMI capabilities for the Nexus 7.
What with there being FOUR pogo pins, I hope it is just a straight up USB type connection. That would make it pretty damn easy to make docks with USB connections for peripherals or whatever external storage may end up working with the device.
Can't wait to get my N7!
OK technicaly it's possible to fit and wire up a USB port to the headset and cut a port hole out. But we need some expert help here to be honest there ain't much in the headset so fairly possible any help would be appreciated pics of inside etc.
Yeah have actually thought about this... thinking i may attempt. Woundering if we could use a samsungs mhl dock circuit to use the hdmi out at the same time as gearvr
hashcheck said:
Yeah have actually thought about this... thinking i may attempt. Woundering if we could use a samsungs mhl dock circuit to use the hdmi out at the same time as gearvr
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What we need is when the new gear vr is releases a teardown and see how the micro usb is attached and mod one our selves.
If you can find the pin out for charging, then you can probably wire solder a female micro USB to it.
Why not using a wireless charger with a qi wireless receiver card on the Note 4?
Wireless charger probably won't keep up charging phone while using vr apps. Wireless chargers usually output around 0.5A or a little more while factory wall chargers - 2A
Sent from my SM-N910T using XDA Free mobile app