Related
As the title says I am very interested in using this tablet as a head unit replacement. I still have plenty of researching to do, but before I get too deep into it, I think there is one problem that should be addressed.
I wouldn't consider myself an audiophile, but I do like my music. So using the 3.5mm jack for audio simply will not do. I have seen a video of someone using a Turtle Beach audio adapter to get usb audio out of the N7, and then into the stereo/processing unit. This would be perfect for me, however I also need to be able to hook up an external drive for additional storage.
So my question is if it is possible to hook up the usb audio cable, and an external drive simultaneously to the N7. My idea right now is to hook up an OTG cable to the N7, then plug in a small non powered usb hub which would have both the external drive and usb audio cable hooked up to it. I am just not sure if this setup is possible, and before I purchase all the components I would like to have some confirmation that it will work like i think it will.( I will be using a rooted N7 with stickmount installed, I believe that is all I need to allow Host capabilities)
On a side note, I also plan to use the pogo pins to charge the device. I saw a video of someone using a hacked usb cable to charge the galaxy nexus with it, so i think that should work. (I just read a thread saying that the galaxy nexus can't charge through a pogo pin dock while having a OTG cable plugged...My dreams are being crushed.)
If you would like any more info about the specifics of the setup, I would be happy to share my ideas.
Sorry for the length of the post, I just want it to be clear what I am trying to do here.
Any information, or tips would be greatly appreciated.
Thank you.
I think my dreams are also crushed, I believe the pogo pins are a pin-out extension of the usb port, not a separate port, therefore using OTG would ****-block charging, which is disappointing.
You could however use one of these in your car http://www.slashgear.com/seagate-goflex-satellite-wi-fi-hard-drive-gets-android-app-01168797/ which would provide 500GB of storage accessible whilst your nexus 7 is charging, combine that and a pocketwifi device to act as a router and provide internet access it would be perfect
if you had an AC power inverter or appropriate power supply for DC to the unit (saves inverting then converting again), you could use this one http://www.ccpu.com.au/show_prod.php?class_id=disk-ext&prod_id=STAM1000200
would be very awesome, looking forward to updates.
Thanks for the info.
That is deeply saddening that you can not use both at the same time, although I guess it does make sense for the purposes of a dock. So it looks like now the only way I can still use a plugged in external hdd, usb audio, and be able to charge the device at the same time is if I can do all of that through the mini usb port in conjunction with a usb hub...but i think that is unlikely. does anyone know for sure?
And thank you for bringing up those wifi hard drives. I didn't want to use them, something about having it plugged into the device directly just makes me feel better...although now I will have to seriously consider them.
Also, if anyone has any info regarding tablet install you think may be useful, feel free to post the link. Even if it is not directly related to the N7, it could still be useful info, and maybe get some gears turning in our heads.
I just became a member so I am not allowed to post links yet :silly:
I will still keep my hopes up about using this device, though! It is my favorite 7 inch tablet by far.
What about usb powered hubs?
Wololo7 said:
What about usb powered hubs?
Click to expand...
Click to collapse
Can the Nexus output digital audio, charge, and read an external HDD, via powered usb hub from its one micro usb port? If it could then all my problems would be solved! Until I encounter my next problem, of course. :silly:
Sounds very interesting indeed. I look forward to seeing what can be done.
Wololo7 said:
What about usb powered hubs?
Click to expand...
Click to collapse
Nope. Did not work for me.
I thought about using the Nexus 7 as my car nav system as well. I stumbled across an issue where I want to mount external USB drive AND charge the tablet at the same time. I could not get the tablet to charge with a powered USB drive. I believe the tablet is going into host mode to read the USB drive, and thus disallowing any kind of power to charge itself.
Please someone prove me wrong.. I really like this tablet. It is the perfect size for the car.
Another issue I found... Using polarized sunglasses + nexus 7 (landscape mode) = completely black screen. This may or may not convince you to continue with this project. I am certainly looking at different options..
Im thinkin about this too. But not to completly replace my headunit but only to slap it on for long drives
Sent from my SPH-D710 using Tapatalk 2
voidshado said:
Another issue I found... Using polarized sunglasses + nexus 7 (landscape mode) = completely black screen. This may or may not convince you to continue with this project. I am certainly looking at different options..
Click to expand...
Click to collapse
I noticed this, too. Disappointing. My HTC EVO View works fine, though.
Very interested in this. I've actually been working on this very project. I'm near completion (sort of) actually, but I'm having a separate electrical issue currently so its been on hold for the last week or so. At this point I've run sound via the 3.5 mm jack, but if a USB solution is found, I'd be all over that. I guess I settled for the 3.5 mm jack as previously, I tended to stream Pandora and various music through the aux jack on my phone anyways. Probably more than 90% of the time actually. I may look into the Seagate GoFlex Satellite WiFi HDD for external storage since charging and USB OTG at the sime time at this point seems impossible/difficult. I have a pair of polarized oakleys that i usually wear, and havent noticed the screen blacking out yet, but I'll have to see when I get home tonight.
On charging & usb host mode at the same time..
Has anybody tried this:
1. Setup a powered USB hub plugged into the Micro OTG cable
2. hack the cable from right after the OTG cable to where it plugs into the hub, so that the voltage pins are exposed
3. solder in the voltage pins to a usb connector so you can plug in a normal charger [5V 2A]
4. check to see if you can use the USB hub and charge at the same time
I currently have a Asus transformer TF101 and the primary use is watching clips off a 500GB usb HDD. I really, really want to get a N7 and sell my TF101, but if charging & simultaneous host mode is not possible, I would be slightly hesitant to buy it, even though it is really a awesome tablet from what I hear.
so if anyone has any info on that, I would greatly appreciate it!
ahavens17 said:
At this point I've run sound via the 3.5 mm jack, but if a USB solution is found, I'd be all over that. I guess I settled for the 3.5 mm jack as previously, I tended to stream Pandora and various music through the aux jack on my phone anyways.
Click to expand...
Click to collapse
I know a lot of people that the 3.5 mm jack for audio. And It really does sound just fine. It is just that I am planing on investing a lot in amps/speakers, so I don't want my weakest link to be my inputs right out of the gate. Although, this tablet is making it pretty difficult to not use that jack.
I would be interested to see your project whenever you finish, or if you have information up of of the process now, that would be interesting to look at.
Thanks again everyone for all the info! I still have a shred of hope for using this tablet in my car!
pikachu2000 said:
I know a lot of people that the 3.5 mm jack for audio. And It really does sound just fine. It is just that I am planing on investing a lot in amps/speakers, so I don't want my weakest link to be my inputs right out of the gate. Although, this tablet is making it pretty difficult to not use that jack.
I would be interested to see your project whenever you finish, or if you have information up of of the process now, that would be interesting to look at.
Thanks again everyone for all the info! I still have a shred of hope for using this tablet in my car!
Click to expand...
Click to collapse
I'm running 4 Polk 6" speakers that replaced the stock ones in my car (just replaced them all last year when I blew one of the stock ones), and a cadence 4 channel amp to power the speakers. Nothing top of the line, and no subwoofer or anything as of yet. Picked up the cabling from monoprice, with all of it being their "premium" selection. It all seems pretty heavy duty and solid. Only ran me around 30 bucks. I just have an 02 Mitsubishi Lancer that I'm putting this in. The dash is originally a single din so it's taken quite a bit of modification to get it to fit. More than I originally anticipated. Just a hobby project I've wanted to do for sometime and when the nexus 7 came along I jumped on it. I'll post some pics when I have a chance but at this point it looks far from professional. lol.
Also, I pulled out the Nexus 7 last night and had my polarized glasses on, no screen blackening that was mentioned previously for me. Maybe a little distortion/filter over the screen at certain angles, but still viewable.
I think this thread is great. I'd love to see/hear what other people are doing or what ideas come about from this.
Thank you, I am really glad this thread has spiked some interest, and that other people have similar ideas. I will start up my research again and come back to post any new info when I can. Gotta keep this thread going strong!
pikachu2000 said:
I would be interested to see your project whenever you finish, or if you have information up of of the process now, that would be interesting to look at.
Click to expand...
Click to collapse
I created a thread with the few pictures I took along the way, as well as the semi-finished project. The only thing I believe I still need to do at this point is get a screen protector. (Tablet still has the plastic cover on it from when it was in the box!) Other things may come up in the future, (such as adding an OTG cable if someone figures out a way to charge simultaneously) but this is it finished for the time being.
http://forum.xda-developers.com/showthread.php?p=29824916#post29824916
Thanks for making a thread! That is very cool, I like your setup a lot. Is the tablet meant to stay in the car permanently, or do you plan on taking it out often?
Alright, I haven't had much time to find much new information. But I was just thinking if I can't have it charge from the usb port and run usb audio out at the same time, then maybe I could take off the rear cover of the N7 and cut a hole in it, where the camera was supposed to go, and route positive an negative wires directly to the battery...then I could use a hacked usb cable to charge it...? Just the thought of that is scary, but I don't plan on taking out the N7 ever, it will always stay in the car.
Just a thought, let me know what you think.
Additional info: I am going to be putting this in an 02 e46 BMW 325xi. And I will use a modified double din face plate. In my head the final setup looks beautiful, but we'll see how it turns out. As for the time frame, I have a list of parts I want to get for the car, and I want to do most everything at the same time. It will take a good 3 or 4 months before I can get everything and then installing it might take another month(assuming everything goes smoothly) I just want to get all of my preliminary research out of the way. Sorry if you guys were expecting pictures soon.
Thanks
pikachu2000 said:
Alright, I haven't had much time to find much new information. But I was just thinking if I can't have it charge from the usb port and run usb audio out at the same time, then maybe I could take off the rear cover of the N7 and cut a hole in it, where the camera was supposed to go, and route positive an negative wires directly to the battery...then I could use a hacked usb cable to charge it...? Just the thought of that is scary, but I don't plan on taking out the N7 ever, it will always stay in the car.
Click to expand...
Click to collapse
What about the pogo pins? Aren't they for a [future] dock? I wonder if you can charge the tablet via the pogo pins and use USB OTG simultaneously? This would indeed be good news, because I will primarily use my N7 [when it arrives] for videos on a USB HDD, so it would wear out the battery to be constantly charging and discharging the battery every day.
mvmacd said:
What about the pogo pins?
Click to expand...
Click to collapse
Earlier in the thread we had thought of that, turns out you can only use one at a time, and it's a hardware limitation so no way around it.
Hello everyone!
After finally getting an external battery charger, I've been able to use my Samsung Focus again.
I'm still, however, having USB connectivity issues.
Here's what I've tried.
-Reinstalling Zune
-Using other USB ports on my laptop.
-Using another computer
-Reinstalling the Samsung USB Driver
-Using a few different microUSB cables, including one from another Samsung phone
-Cleaning the microUSB port.
-installing WMDC
EDIT: -I've also made sure my phone's in Zune Sync USB Mode in the Diagnosis app.
When I connect the device, it says "Unrecognized USB Device Detected", I've tried replacing the drivers with the Zune driver, which works half the time, but it still has a yellow caution icon next to it. Saying things like "the device cannot start", "a request for the USB device descriptor failed.", and "device enumeration failed".
So now it's down to it being the software on the phone or the phone microUSB port.
I'd love to hard reset and see if it's the software, but if it's the port and I've reset, then I'm screwed.
I've searched numerous forums, including this one, and still haven't seen any working solutions.
EDIT: Also, I've noticed in the Battery Status app... it'll say "charging" for a few seconds and then go to "discharging".
Some specs:
Phone:
-Samsung Focus SGH-i917R
-Rev 1.3 on AT&T
-Windows Phone 7.10.8107.79
-DFT Freedom ROM [I guess it was a Rogers version]
Laptop PC:
-Dell XPS17 L702X
-Windows 8 Release Preview 6.2.8400
-Intel Core i7 2720QM @ 2.20GHz
-NVIDIA GeForce GT555M (3GB) @ 1080p120
-16GB DDR3 Dual Channel Memory
If anyone can help, it'd be huge!
And if there's anything I've neglected to mention, please let me know and I'll edit the post.
Thank you so much!
So I ended up doing a hard reset, and much to my dismay, it's still spitting out USB Device Not Recognized. It reset to the DFT Freedom (Chinese New Year) ROM I have on there, which I didn't quite expect... I'm wondering if that's the problem or not. When I get closer to my upgrade next month (Lumia 920, here I come) I'll likely get ballsy-er, and might even dismantle the phone and see if there's anything physically amiss with the port.
Still, any suggestions, feel free.
Have the same issue. Did same as you searching internet for any hints.
Have had this issue for 6months now, just been living with it and syncing files to skydrive and Gmail with WiFi.
I even took phone apart down to the circuit board level to see if anything noticeable or maybe connector or any components with broken solder. Hit it with some heat from SMT soldering iron to get a bit of reflow in that area, didn't make a difference. Ohmed it out as far as I could go thinking data lines were shorted or something...no luck.
I'm leaning toward this being a USB receiver chip level issue inside the Samsung Focus. Was hoping it would be something simple. Who knows, maybe that ROHS solder wiskering issue is haunting me somewhere in that phone.
FYI this issue came up around same time I had the repeated chiming issue. The one that only goes away when you do plug in the USB connector with charger or PC. Luckily haven't experienced that issue in 5 or so months. But did have it dissappear for a month then reappear again back then, so anything goes.
Note about 2 months ago I plugged phone into computer and it tried to sync up, zune popped up. I got excited, but after remove and plug in again, have not seen been able to get it back since.
I too am having the same problem.
First of all, be warned - if you decide to pull apart your Samsung focus, it's easy to do, but I found that the SMT port for the antenna is VERY fragile.
Steps to open it after turning it off:
1) open back plate.
2) pop out battery, sim, and expansion memory
3) take out the 7 screws.
4) with a flat blade (whether that be a screwdriver, flat tweezers, or even a guitar pick), insert it in the gap between the chrome and the FRONT of the phone, then gently twist to pop the "back" off.
5) You will now need to separate the volume buttons from the side of the phone (the plastic comes out easy enough).
This is a sticker back, and getting it off is hard and can tear easy.Take your time.
From there, there are several flat PCB sections that have multipin connectors hidden under them. They need to be pried off - they do not require a lot of force.
Now the big reason not to do this:
The f$#%ing antenna connector. It will pop off, but the connections to the mainboard are VERY fragile. I'd suggest pushing against it and use tweezers to rotate and lift the connector.
All that said, I've been looking for a cause for the problems you've been having - there is one other symptom you haven't mentioned, and this has been a problem for a lot of focus owners - the constant dinging. You may not be getting it (if you're phone is on vibrate, then it's no surprise), but every time the device "sees" the usb connection to charge, it Dings (at least, for me).
Yeah. I *want* to either fix it, or drop it in the toilet.
My phone is off any warranty already, and Samsung refuses to help. I'm not buying any more Samsung products ... and before this, I was humming and hawing between the Nokia 920 and the ATIV S (for the screen size).
I recently got the courage to unlock and root, but I feel like a bull in a china closet. I just breaking things and fixing them! I really feel like a dumb animal, but I keep reading and learning. So far, I've been able to fix or reflash until this post.
My issue is my when placing phone into car dock, I can't hear a call afterwards. It doesn't matter if I leave the phone in or take it out, I can call out, but the person I"m calling can't hear me. The only cure is a reboot, in which calling can resume until I enter the car dock.
A little background, I have flashed several ROM's over the past several days and I'm not sure where it started. PacMan, DeadCalm, etc. Now I'm using 4.2 RootBox. During my flashing spree, I did have almost the same issue, but minus the car dock. I think it was with PacMan, after every call I would lose the ability to hear or talk on the next call until a reboot. Again, now is good, except for when I use the car dock.
I also flashed Arrghs, 19 kernel with DeadCalm to fix the known screen proximity issue and borked my phone. I got a bootloop I couldn't get out of and had to use recovery.
Does this make any sense? Before every flash, I'm wiping numerous times. Any help would be appreciated!
I use no-op dock.
As to custom rom that WORK a 100% I can't find any.
My daily driver is a mildly moded Telstra stock rom.
See link below. Go to the OPs Russian site & they have a poll of popular roms. I linked to their site in same thread.
You aren't doing anything wrong as far as the "audio loss" part is concerned when using the car dock. You're using the official Motorola car dock, and the ROM developers for this phone either don't own the dock or have no interest in fixing it (nothing against them, it's extremely proprietary). The audio is just redirected and doesn't come back without a reboot.
The reason the audio is redirected is that Motorola designed it to work with their also proprietary audio/charging cable, which splits a usb charging port and audio jack out so you don't have to plug an aux cable directly into your phone when you want to hear it on your car stereo. Catch is, this never caught on, because they didn't include this splitter cable with most of the docks they sold.
The dock has a chip in it (and a crap ton of small circuitry) that tells the phone not only what dock it's on, but integrates tightly with the smart actions included by default on the phone. The custom roms are made for standard docks, or custom solutions using the resistor value tricks that Samsung is famous for. It's unlikely that we'll see more support for this type of dock system unless the new Moto X uses the EXACT same system.
To bypass this issue for me, I disassembled the car mount and removed the offending circuit board, then soldered on this breakout board (http://www.jayconsystems.com/usb-mini-breakout-board-556.html) and finagled it in there (carefully) using some of that epoxy steel stuff you see in auto parts stores. This simply made the car mount what it already appears to be: a pure pass-through. You cannot get around this issue without either disconnecting the internal circuit, removing the usb jack portion from the mount altogether, or reprogramming the offending part of the ROM you want to use (because I don't think anyone's working on it yet).
Btw, if you spend $10 or more you get free shipping, so why not throw in the OTG cable (among other random things) if you don't have one: http://www.jayconsystems.com/usb-otg-cable-female-a-to-micro-a-5.html
Donowolf said:
You aren't doing anything wrong as far as the "audio loss" part is concerned when using the car dock. You're using the official Motorola car dock, and the ROM developers for this phone either don't own the dock or have no interest in fixing it (nothing against them, it's extremely proprietary). The audio is just redirected and doesn't come back without a reboot.
Click to expand...
Click to collapse
Wow, good reply. I didn't know about the chip inside of the dock, but it makes sense since when I enter the phone into the dock it automatically goes into Car Mode.
I tried the No-Op app from the Play Store that Avi mentioned (thank you too), but car mode still started when I used the dock and of course I lost audio.
Stinks, I really like the OEM car dock. I'm in sales and rely on the GPS a lot for work. I always put the phone right into the dock as soon as I get into the car which is numerous times throughout a normal day. So no ROM's have working audio with Motorola dock? I guess I get rid of the dock or go back to stock.
perkinscl said:
Wow, good reply. I didn't know about the chip inside of the dock, but it makes sense since when I enter the phone into the dock it automatically goes into Car Mode.
I tried the No-Op app from the Play Store that Avi mentioned (thank you too), but car mode still started when I used the dock and of course I lost audio.
Stinks, I really like the OEM car dock. I'm in sales and rely on the GPS a lot for work. I always put the phone right into the dock as soon as I get into the car which is numerous times throughout a normal day. So no ROM's have working audio with Motorola dock? I guess I get rid of the dock or go back to stock.
Click to expand...
Click to collapse
I have the same problem (obviously). I have not done this yet but was thinking I would set up a Tasker task to reboot the phone as soon as it is disconnected from the dock. This phone reboots so quickly (on PAC at least) that I don't think it should interfere with much. I have just been too lazy to set it up
styndall said:
I have the same problem (obviously). I have not done this yet but was thinking I would set up a Tasker task to reboot the phone as soon as it is disconnected from the dock. This phone reboots so quickly (on PAC at least) that I don't think it should interfere with much. I have just been too lazy to set it up
Click to expand...
Click to collapse
I ended up going back to stock (almost - Deodexed 98.16.3 Base) All good so far. I had one hiccup and couldn't hear during a call, but that was only once and everything has been peachy since. Just no cool custom ROM goodies...:victory:
Well the microusb on my N7 has been half broken for almost a year now (worked only the first month before it was dropped with a cable in). Its always been able to charge and it must be a hardware issue, my other N7 connects fine to the same computer port and cable. I've also tried many other cables and computer.
Now normally this isn't a huge deal as I just transfer things I need over samba but I now have a new situation.
An OTA bootlooped it, its with stock recovery, factory reset still results in a bootloop, I can get to the bootloader fine but since my data connection never works fastboot is a no go, replacement microusb modules are $60+
I replaced the screen last month myself so my warranty is gone.
I'd like to make a temporary connection to the motherboard just to fastboot a factory image and twrp. There seem to be a few data points that could work, this thread shows one beside the battery connector http://rootzwiki.com There is also the one on the microusb module itself above the actual plug but that whole module could be messed up so I'd rather try another.
I'm not great with soldering and there is no way I could solder either of those spots on my own. Are there any other spots that would be easier? Would only the data +/- points be needed to the cable? Or is the 5v and ground needed to?
Thanks!!
If I'm not mistaken if you buy a n7 official dock. It connects via the 4 round brass dots on the bottom of your n7 I forget what the proper term is lol. Anyways its the same as USB as far as I know. Or find the pinout of them and make something.
Sent from my Nexus 7 using XDA Premium HD app
ronedogg said:
If I'm not mistaken if you buy a n7 official dock. It connects via the 4 round brass dots on the bottom of your n7 I forget what the proper term is lol. Anyways its the same as USB as far as I know. Or find the pinout of them and make something.
Click to expand...
Click to collapse
Looked into it, its charge only, no data. Thanks though
(long time lurker and flasher of Nook HD+ roms, first time poster...)
Like a few others scattered around the subforum, I'm looking to do an in-car tablet install. Like others I hit the "Can't charge and use OTG at the same time, you need an ancient nexus and Timur's" just as old but revered ROM." wall.
https://www.google.com/?gws_rd=ssl#q=site:https://forum.xda-developers.com/galaxy-tab-a+otg
Then a hole in the matrix appeared and I saw this post on a different device thread:
https://forum.xda-developers.com/tab-s2/help/usb-otg-charge-t3588019
The second post there, refers to a vendor LAVA whom "LAVA is the only manufacturer of adapters for Samsung tablets that allows that since Samsung doesn't sell anymore their hubs" (from that post).
Confirmed that the Compatability list shows SM-T580 (the device amazon has factory refurbs for 200$):
http://lavalink.com/samsung-tablet-adapters-support/compatibility-list/
Would it be possible this is the device to make the magic happen? http://lavalink.com/samsung-tablet-adapters/
EditToAdd: Tech Spec sheet here for the meaty innards: http://lavalink.com/wp-content/uploads/manuals/sts_product_family_manual.pdf Main takeaway for me was don't extend the cable to the tablet.
Also found the "cheap" lol single port on amazon with a wide swing of reviews: Encouraged by the long one that says it is working with external DAC: https://www.amazon.com/SimulCharge-1-port-Adapter-Samsung-Galaxy/dp/B00MOQFUQM
Also this mini-writeup shows one in use in 2015 with DAC, am I missing something on why this was a wall for many?: http://www.diymobileaudio.com/forum...-usb-hub-samsung-galaxy-tablets-charging.html
Thanks for any help,
AoB
On the (i hope) tail end of the first version of my dash tablet install, and after my research and work over the past few days, I will try to answer my own question -- just for others. no pity for me. OTG-Host was not a "must-have" (yet).
My big mistake (i think) was not being aware of the distinction between OTG-Accessory and OTG-Host. The Lava-link hub/cable in my OP allows OTG-A and charging the device. OTG-H seems to be a different animal,.. something that the kernel and maybe the hardware has to support? I have flashed Extremely ROM on my T580 and a USB keyboard plugs in to OTG cable and is detected, but a USB RLT-SDR device is not detected (nor powered).
So I guess back to the beginning, still need Kernel support for OTG-Host? Correct?
AfraidOfBears said:
(long time lurker and flasher of Nook HD+ roms, first time poster...)
Like a few others scattered around the subforum, I'm looking to do an in-car tablet install. Like others I hit the "Can't charge and use OTG at the same time, you need an ancient nexus and Timur's" just as old but revered ROM." wall.
https://www.google.com/?gws_rd=ssl#q=site:https://forum.xda-developers.com/galaxy-tab-a+otg
Then a hole in the matrix appeared and I saw this post on a different device thread:
https://forum.xda-developers.com/tab-s2/help/usb-otg-charge-t3588019
The second post there, refers to a vendor LAVA whom "LAVA is the only manufacturer of adapters for Samsung tablets that allows that since Samsung doesn't sell anymore their hubs" (from that post).
Confirmed that the Compatability list shows SM-T580 (the device amazon has factory refurbs for 200$):
http://lavalink.com/samsung-tablet-adapters-support/compatibility-list/
Would it be possible this is the device to make the magic happen? http://lavalink.com/samsung-tablet-adapters/
EditToAdd: Tech Spec sheet here for the meaty innards: http://lavalink.com/wp-content/uploads/manuals/sts_product_family_manual.pdf Main takeaway for me was don't extend the cable to the tablet.
Also found the "cheap" lol single port on amazon with a wide swing of reviews: Encouraged by the long one that says it is working with external DAC: https://www.amazon.com/SimulCharge-1-port-Adapter-Samsung-Galaxy/dp/B00MOQFUQM
Also this mini-writeup shows one in use in 2015 with DAC, am I missing something on why this was a wall for many?: http://www.diymobileaudio.com/forum...-usb-hub-samsung-galaxy-tablets-charging.html
Thanks for any help,
AoB
Click to expand...
Click to collapse
i did a car install on my eclipse usb charged headphone jack to amp and bluetooth to obd2 interface for gauges i used an app called auto power off or something like that. and it mimicked a cars gps system prety good it would wake up screen and keep awake til key shuts off counts down 30 seconds click here to keep awake or shut down but it only put tablet in low power state i drove that car every day it was long enought to keep it charged all the time
N
AfraidOfBears said:
On the (i hope) tail end of the first version of my dash tablet install, and after my research and work over the past few days, I will try to answer my own question -- just for others. no pity for me. OTG-Host was not a "must-have" (yet).
My big mistake (i think) was not being aware of the distinction between OTG-Accessory and OTG-Host. The Lava-link hub/cable in my OP allows OTG-A and charging the device. OTG-H seems to be a different animal,.. something that the kernel and maybe the hardware has to support? I have flashed Extremely ROM on my T580 and a USB keyboard plugs in to OTG cable and is detected, but a USB RLT-SDR device is not detected (nor powered).
So I guess back to the beginning, still need Kernel support for OTG-Host? Correct?
Click to expand...
Click to collapse
See post above
I had to rig in the mount since a eclipse console is so small. I didnt want a 5 inch or 7 inch screen i wired a switch to the factory amp for remote turn on and a headphone jack to the fro and rear left rite of the factory amp as the eclipses some have a fac amp under the seat to the factory stereo used the fac stereo power wires for a 12 volt usb charger in the dash to turn tablet on with the key and my fancy little led toggle for the amp power