Hi,
I had a new case and keyboard arrive for my nexus today but the keyboard doesn't seem to be detecting at all. I've been browsing all evening trying to find a fix but to no avail so far...
These are the specifics;
Nexus 7 wifi 32gb stock rom, JB 4.2.1
This exact MINI USB Keyboard (Can't identify manufacturer as the keyboard is built in to the case)
Mini usb - micro usb connector
I have verified the usb connector is working fine as I am able to plug in a mini usb charger to the nexus through it and it charges fine.
When I plug in the keyboard it doesn't work or seem to be detected in any way.
Where am I going wrong?
I can't try a USB OTG cable as I am not connecting a full size USB peripheral. I installed usb host diagnostics and ran it with the keyboard connected but I'm not sure how to interpret the results which are as follows;
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Additional info;
I added a 51-android.rules file as per the process in this thread, and included ALL manufacturers and ID codes but still no fix
You *do* need an OTG cable. It has two pins (4 and 5) connected. That's what tells the tablet that it's in host mode. If you want to adapt yours, here's the procedure (obviously, use at your own risk!):
http://forums.androidcentral.com/go...iy-making-your-own-otg-cable-image-heavy.html
tjupille is correct, a normal micro USB cable will only have 4 pins connected, the 5th pin needs to be grounded on the tablet side of the cable. If you can find/make a such a cable and if it's a standard USB HID keyboard then it should work out of the box on a stock N7 without the need for any special configuration.
I have also seen where some non-stock ROMs lose the OTG support. This wouldn't be your case as you are running what looks to be a stock ROM. Now then, I have had a few OTG cables go bad. Some of them are just made cheaply.
Thanks all, I understand the otg cable setup much better now. I figured that with a standard connection android should see the device as an input device and it would just work. Have a cable on order now. I have the kit to mod my existing adapter but for such a small amount of money I'd rather not gamble frying my nexus. Look forward to when it arrives as I keep going to use the hard keys!
Sent from my Nexus 7 using xda app-developers app
ixampu OCEANSIDE-3
dealextreme has some otg cables, you can purchase it.
A # of eBay stores carry these Micro USB Host Mode OTG Cable, originally designed for the Samsung Galaxry devices - I got one as a bundle along with the swivel case & screen protector, etc. Inexpensive & it works - on 4.1.2 and on 4.2.1 depending on the rom & kernel.
One of them selling a pair for under $5, free shipping and they are based in the LAX area of CA, mine arrived in less than a week - vendor has been around for years and sourced them mostly from oversea. The short piece of connecting cable is a bit longer than picture but still fit flat & tight against the bottom/side of the N7 with the case, so it won't be too bad flying 6 or 10+ hours with my own huge library collection of DVD's on a stick. Not a vendor / product endorsement & plenty of sources to get yours, plus Amazon ...
http://www.ebay.com/itm/2x-Micro-US...338153?pt=PDA_Accessories&hash=item56517d1069
Mine was quite difficult to find as it's a micro one end and mini the other, but I've located one and it's ordered. Thanks for the links guys. I'm in the uk, it seems to be particularly difficult to find the one I need here for some reason!
Just my $0.02 on the whole OTG thing though.... why can't it be that simple to just connect a usb device and for it to work like things used to?? Why the need for an adapter? Surely these keyboard cases should all be OTG wired for maximum compatibility as a keyboard is never going to be a host device!
Ho hum...
Then if i understand good i need otg cable to be able to connect my keyboard ! The problem is my keyboard is already micro usb and i just find
OTG micro usb to usb 2.0 .
How to do then ?
Well I'm glad I found this thread after a couple of hours of fruitless searching (& mostly getting stuff about flash drives).
I tried to connect a case logic mini usb keyboard which I acquired for the princely sum of ten bucks, by using the cable that shipped with the Nexus and a usb gender changer, but the tablet did not recognize the device. I've had no trouble hooking the tablet up to a pc for chrome debugging, file xfers etc, and I tested the mini kb on a couple of pcs.
I thought it was something like this OTG adaptor thing, but couldn't figure out what was special about it vs. bog-standard usb plugs. I ordered one along with a powered usb hub, in case that was the/another issue, and look forward to getting this thing to work.
Thanks!
Edit: Sweet! The OTG adaptor worked like a charm, and with a powered hub I can run a wireless mini-mouse too.
Hi guys, I know this thread is quite old, but I have very, very important problem:
I've recently bought the same built-in to case keyboard with two wires: micro and mini.
The problem is that the micro one connected to the Nook Tablet or HTC Sensation does not work (although in case of HTC Sensation it is detected!).
When I connect the same keyboard to my sister's no-name tablet (something-made-in-China) via miniUSB it works like a charm! With no adapters, nothing!
The question is: should I try to find OTG adapter (and if yes, then which one? miniUSB to microUSB, or rather microUSB to microUSB?) ?
Thanks in advance for all your replies...
Waszker said:
Hi guys, I know this thread is quite old, but I have very, very important problem:
I've recently bought the same built-in to case keyboard with two wires: micro and mini.
The problem is that the micro one connected to the Nook Tablet or HTC Sensation does not work (although in case of HTC Sensation it is detected!).
When I connect the same keyboard to my sister's no-name tablet (something-made-in-China) via miniUSB it works like a charm! With no adapters, nothing!
The question is: should I try to find OTG adapter (and if yes, then which one? miniUSB to microUSB, or rather microUSB to microUSB?) ?
Thanks in advance for all your replies...
Click to expand...
Click to collapse
OTG for the nexus 7 is a bit different in terms of hardware requirements. Pins 4 and 5 on the micro USB side have to be shorted together for it to work. You will likely need an OTG cable that says in the description that it is compatible with the Nexus 7. Amazon and eBay are decent places to go.
Sent from my Nexus 7 using xda premium
Hey, I bought the same keyboard, foolishly.
Is buying another cable the only way to get to work?
Related
didnt want to order a usb otg cable. so...
whatever it takes, right? hacked this together with crap laying around.
http://imgur.com/IqaW3
updated to 3.1
http://imgur.com/jRdtR
btw, this is on a wifi xoom.
Also, if anyone is curious, the red thing is a micro usb break out board from sparkfun. the other usb thing is a expansion slot from a old motherboard. just google it. SparkFun is down right now, but i think its this: http://www.sparkfun.com/commerce/pro...ducts_id=10031.
Part Originally ordered cause of this: http://forum.xda-developers.com/arch.../t-819551.html
edit:
thought you might be interested in this too....
http://imgur.com/Ptg3H
http://imgur.com/rUIQq
this is connected directly to a Nikon D60 DSLR.
wonder what other cool **** i can plug into this
this is NOT a rooted device. yet. i want to see what it can do stock.
Diff between micro-A USB and the more common micro-B cable is that pin 5 is grounded in the first, and open in the second.
http://en.wikipedia.org/wiki/Universal_Serial_Bus#Human_interface_devices_.28HIDs.29
Short pin 5 to pin 4 to get the u-A (OTG) type. Many u-USB cables don't have pin 5 wired at all, so this may not work.
Otherwise, just buy one for a few bucks.
http://search.digikey.com/scripts/DkSearch/dksus.dll?mpart=ZX40-A-5S-75-STDAJ
http://www.dealextreme.com/p/genuine-nokia-ca-157-micro-usb-otg-to-usb-data-cable-14cm-length-51045
I'm really happy that HC3.1 now has improved I/O (USB host, MTP/PTP).
Can you break it down for me? What exactly does it do?
Sent from my PC36100 using XDA App
Any ideas where one could buy one of these cables from?
http://www.meritline.com/micro-usb-type-b-male-to-usb-a-female-cable-black---p-62877.aspx
Oh, I guess I shouldn't hijack this thread.
Could anyone with an answer reply here please?
http://forum.xda-developers.com/showthread.php?t=992415&page=2
>Any ideas where one could buy one of these cables from?
Read above.
>What exactly does it do?
http://google.com/search?q=usb+otg
Effing awesome!!! was looking for this all night, fetched a couple old mobo's but couldn't find a "single" female usb plug, maybe I'm lucky tonight..
Good to see this thread.
e.mote said:
>Any ideas where one could buy one of these cables from?
Read above.
Click to expand...
Click to collapse
But those are the micro A cables... they will not fit into Xoom, will they?
By the way, will getting a female to female work for the OTG purpose?
So have the micro B male to normal A male plugged into female of female to female, so that the other side female is available for a usb device to plug into?
http://www.monoprice.com/products/p...d=10314&cs_id=1031401&p_id=362&seq=1&format=2
Seems simple to me, but will it work? I might have a lot better chance of finding a female to female here than a micro usb OTG.
In case I didn't explain what I was talking about clearly, I made this diagram.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
*Edit
I'm guessing the answer will be no... as the default cable is probably only designed to be used as host from the normal USB Side..
i.e. the 5th pin on the micro is floating?
But... Will it work if you had a switch built into the cable that toggles the state of the 5th wire between connected to 4th and floating?
So that you could use the same cable and switch between normal and OTG..
Sort of like this:
This would take a bit of trickery to get right, but then one would only need to carry one cable and a small female to female.
Ya, I suppose you could just buy one of these:
http://www.amazon.com/gp/product/B0..._m=ATVPDKIKX0DER&pf_rd_r=1VCNAYJJHNGVY48CAHKY
(although I'm not sure if this one will actually work as it says it is an adapter and doesn't mention OTG at all...)
But I think it is too bulky at the Xoom side and and I would worry about bumping it and snapping something off inside the Xoom.
Any ideas?
I might be completely wrong in how I understand this whole thing, so feel free to tell me so.
>But those are the micro A cables... they will not fit into Xoom, will they?
Form factor difference between micro-A & micro-B:
If Xoom supports OTG, its plug receptacle should be the micro-AB variety, i.e. it should accept both A & B connectors.
If Xoom only accepts the beveled connector of micro-B type, then it's not in-spec with respect to OTG. That said, there are cables/adapters labeled as OTG and yet have the beveled connector of the micro-B type. You just have to pay attention to the actual connector. It's all a bit hit-or-miss, since USB host on mobile devices is still rare, and implementations are somewhat ad hoc despite specs availability.
>will getting a female to female work for the OTG purpose?
Can't use micro-B cable (per your pic) if Xoom is to be host device. Get correct micro-A cable for your needs.
The adapter you linked to is a simple size converter; it doesn't allow OTG capability. What you're talking about is more like these,
http://www.dealextreme.com/p/micro-usb-on-the-go-host-otg-adapter-pair-50774 (micro OTG)
http://www.dealextreme.com/p/mini-usb-on-the-go-host-otg-adapter-2-pack-50944 (mini OTG)
Note: These haven't been verified to work, unlike the previously-linked Nokia OTG cable, which has been confirmed as OTG capable. Also, as you said, these can damage the port with an inadvertent bump.
Different devices need different connectors. Flash keys & USB HDDs need the USB-A female connector (for the other end). Digicams & cellphones require mini-USB male or micro-B USB male.
Ideally, you'd get three different OTG cables, each with micro-A on one end and micro/mini/regular connector on the other end. Practically, you can't find micro-A to mini-B types (at least from a cursory search), and will have to settle for one cable + two adapters to fit all three USB sizes.
Lastly, note that the host device (Xoom) needs to provide sufficient power, if slave device isn't self-powered. In many cases with micro-USB, there isn't enough power, even if said slave device is a flash key or card reader. As above, it's hit-or-miss.
As obvious, confusion factor is high for all this micro/mini/A/B/male/female beeswax. I suspect this will be resolved once tablets become more common, and the simplest way to resolve it is to use full-sized USB ports. When you think about it, the micro- form factor is a holdover from the smartphone, as there's no rationale for it to be on tablets. Ironically, cheap shenzhen tabs for now are most likely to sport full USB ports.
In short, buy whatever cable you need for the Xoom. But for your next tablet (if you care about USB connectivity), buy one with full-sized USB ports. It will save a lot of headache.
Hmm, previous reply is a little confusing. To simplify,
There are 3 instances when you want to use Xoom in host mode:
1. Connect to USB flash key, (self-powered) USB HDD - Get one of these below
http://www.dealextreme.com/p/genuine-nokia-ca-157-micro-usb-otg-to-usb-data-cable-14cm-length-51045
http://search.digikey.com/scripts/DkSearch/dksus.dll?mpart=ZX40-A-5S-75-STDAJ
-or-
search eBay for USB OTG http://shop.ebay.com/i.html?_nkw=usb+otg
2. Connect to USB periph w/ mini-USB port: Get cable in #1, plus a mini-USB male to USB-A male adapter,
http://www.dealextreme.com/p/usb-male-to-mini-usb-male-adapter-32709
3. Connect to a USB periph w/ micro-USB port: Get cable in #1, plus a micro-B USB male to USB-A male adapter,
http://www.dealextreme.com/p/usb-to-micro-usb-adapter-58818
To provide external power-assist for un-powered devices, get a Y-cable,
http://www.amazon.com/Male-Power-Sync-Cable-Drives/dp/B002ZUV9IK/
The Xoom only takes Micro USB B, as far as I know.
You can see so by looking at the shape of the port:
I think if you got a Micro B to female normal A you wouldn't need all those other cables, as they would already come with the normal A male to what ever male they required and the host connection would be the right way.
Do I have that right?
Thanks for your input, I appreciate it.
>I think if you got a Micro B to female normal A you wouldn't need all those other cables, as they would already come with the normal A male
You can't use a normal micro-B cable, as it doesn't have OTG (pin 5 not grounded). The USB-A connector at the other end is irrelevant.
Given the Xoom can't take a micro-A connector, you'd have to find an OTG cable that uses the micro-B shell. I'd avoid using an adapter for reasons already mentioned. Since this has come up in this forum before, I'm sure solutions have already been found.
Via http://www.google.com/search?q=xoom+usb+otg+cable+site:xda-developers.com
and via http://forum.xda-developers.com/showthread.php?p=11997885
comes the apparent solution,
http://cgi.ebay.com/Micro-USB-Host-Cable-Nokia-N810-OTG-go-N-810-/250817547531
looks like the Nokia N810 OTG cable has the beveled micro-B connector. Credit goes to the OPs.
Awesome, thanks.
I bought that one from ebay that you suggested. It looks like the right one, in the picture it has a micro B male.
And they will even ship it here, for free. I'm amazed.
Will post results here. Thanks so much for your help.
Suggest also this cable if you're planning to hook up USB HDDs or digicams w/ mini-USB port. The Y-cable allows external power assist.
http://cgi.ebay.com/USB-2-0-Mini-5-Pin-Male-Data-Power-PC-HDD-Y-Cable-/130498137552
I'm confused.....
Will this fork for connecting a keyboard with my xoom when I get the update?
http://www.dealextreme.com/p/genuine-nokia-ca-157-micro-usb-otg-to-usb-data-cable-14cm-length-51045
And if not please please link me to one, as I have been looking forever but keep finding ****.
The eBay link you sent i can't see because I'm on my xoom and it just loads mobile.
Sent from my Xoom using XDA App
Work... not fork
Sent from my Xoom using XDA App
RadDudeTommy said:
I'm confused.....
Will this fork for connecting a keyboard with my xoom when I get the update?
http://www.dealextreme.com/p/genuine-nokia-ca-157-micro-usb-otg-to-usb-data-cable-14cm-length-51045
And if not please please link me to one, as I have been looking forever but keep finding ****.
The eBay link you sent i can't see because I'm on my xoom and it just loads mobile.
Sent from my Xoom using XDA App
Click to expand...
Click to collapse
No that won't work because that has a Micro A male and the Xoom only takes Micro B.
The ebay one is the one that works:
To view non-mobile, type in about:debug in the address bar and hit enter, it will look like nothing happened, then go to menu>settings>debug>UAString and change it from Android to Desktop. Then reopen the ebay link. It will reset to mobile every FC or when you restart your Xoom. But each time after you just need to type about:debug, it will remember the UAString setting.
But this is also a link to the same type of cable:
Meritline
Although they seem to be out of stock at the moment.
Hope this helps.
Tanks a lot
Sent from my Xoom using XDA App
I too connected my camera to the Xoom and it was recognized right away. I just wish it transferred the files automatically instead of manually. Anyway, I posted this link in another thread but in case it was missed, this is the Ebay seller I got my OTG cable from and it works for me:
http://cgi.ebay.com/Micro-USB-Host-...=260760886893&ps=63&clkid=9130826876118408283
e.mote said:
http://www.dealextreme.com/p/genuine-nokia-ca-157-micro-usb-otg-to-usb-data-cable-14cm-length-51045
Click to expand...
Click to collapse
Thanks for pointing to this cable! So now I ordered 2 even here in Poland we dont have much of "OTG" "Y" etc available ... at least they are hard to find.
Now I'm thinking on powering it.
I know we can use Y cable and powered usb hub.
But I'd like to have mobile solution.
I was thinking to pay someone (I dont have any tools and knowledge) to modify the nokia cable.
What do you think of buying a battery pack, that can output 5V / 500mA (I thing this is usb standard?) and connect it somehow directly to the nokia cable?
XOOM does not power the usb cable/ right? to there are 2 wires that should supply power, but they dont? What if we could just plug the power into them?
This is just an idea and I dont even know which wires to plug into
If anyone of You know what I'm talking about please comment on this... Thanks!
niematunikogo said:
Thanks for pointing to this cable!
Click to expand...
Click to collapse
That one won't fit into the Xoom.
You are going to have to try file the Micro A to fit into the Micro B port, as one of the other members of the forum has done, or get another cable.
Your cable end:
Micro USB A
The Xoom Micro B Port:
The difference between the 2:
Sorry man
Well I just got my Toshiba Thrive and I love it. My favorite feature of this device is the full uUSB port. Just wanted to see if we can create a list of all the USB devices that work with the thrive in a specific or general sense. So keyboards speakers mouses cd drives anything u can get to work on the thrive post it and ill update the thread as often as I can. Hopefully this list will grow. Also if mods feel this is a threat feel free to close but leave a reason why.
--------------------------------------------------------------------------------------------------------------
Types of Devices Around
Also when posting your devices try and be as specific as you can.
ie. Logitech Wireless Solar Keyboard K750 for Mac
USB Docking Stations
USB Hubs
Logitech Dual Action USB Controller
USB Card Readers
USB Flash Drives
USB HDDs & USB Floppy Drives [External FDD] (enclosures too)
250GB FreeAgentGo External HDD
USB WebCams
USB Speakers
USB IrDA Adapters
USB Bluetooth Adapter
USB 802.11 Adapters [WiFi]
USB Audio Interface
USB Mice / Keyboards / Gaming Pads (either or combinations)
Replica USB SNES controller (great for emulator)
USB Gadgets: Heated Slippers, Gloves, Beverage Chiller, etc.
iPod
--------------------------------------------------------------------------------------------------------------
Just added a few of the Devices posted. really haven't had time to update the thread, but now i do so lets kick this off. Really hoping this list grow.
--------------------------------------------------------------------------------------------------------------
Last updated as of November 12, 2011
This thread is always Under Construction due to updates.
Bluetooth mouse works through Bluetooth and if the battery is dead I can connect it using usb. I also have a loitech Bluetooth keyboard with a mouse built in that works. I also use it to change my EVO.
Sent from my Toshiba Thrive using Tapatalk.
Reserved Post
DroidFreek said:
Also when posting your devices try and be as specific as you can.
ie. Logitech Wireless Solar Keyboard K750 for Mac
USB Docking Stations
USB Hubs
USB Card Readers
USB Flash Drives
USB HDDs & USB Floppy Drives [External FDD] (enclosures too)
USB WebCams
USB Speakers
USB IrDA Adapters
USB Bluetooth Adapter
USB 802.11 Adapters [WiFi]
USB Audio Interface
USB Mice / Keyboards (either or combinations)
USB Gadgets: Heated Slippers, Gloves, Beverage Chiller, etc.
Click to expand...
Click to collapse
How does a USB Webcam work??? I dont see that as possible.
Thats the point of this thread to see what devices work on the thrive evn if you have to create an app or mod it as long as it works.
OK well here is what ive been able to get to work via USB so far on my Toshiba THRiVE:
USB Docking station for external HDD w/ built in USB Hub
(I've been able to use my 250GB FreeAgentGo External HDD while having a keyboard and mouse plugged in)
Logitech Dual Action USB Controller
Replica USB SNES controller (great for emulator)
32GB jump drive
My phone as media storage (touch pro 2)
USB card reader
(It recognized multiple cards simultaneously including micro SD, SD and Compact Flash)
I'll add more later.
Sent from my Toshiba Thrive using Tapatalk
ScanDisk cruzer USB flash drive seems to work with 4GB, 8GB but cant seem to read my 16GB
blorenzo said:
ok well here is what ive been able to get to work via usb so far on my toshiba thrive:
Usb docking station for external hdd w/ built in usb hub
(i've been able to use my 250gb freeagentgo external hdd while having a keyboard and mouse plugged in)
logitech dual action usb controller
replica usb snes controller (great for emulator)
32gb jump drive
my phone as media storage (touch pro 2)
usb card reader
(it recognized multiple cards simultaneously including micro sd, sd and compact flash)
i'll add more later.
Sent from my toshiba thrive using tapatalk
Click to expand...
Click to collapse
jsnali13 said:
scandisk cruzer usb flash drive seems to work with 4gb, 8gb but cant seem to read my 16gb
Click to expand...
Click to collapse
sorry guys haven't really had time to update this thread but will update either today or tommorow
I plug in my ps3 camera in and the blue light comes on. Is there a app to test usb cameras?
My ps3 paddle works with it.
Sent from my HTC Liberty using XDA App
My iPod works using the music app I can scroll through and play all music on it
Sent from my AT100 using Tapatalk
Sony 16GB & 32GB USB works.
Ten Characters....
Just updated the thread and guys please be more specific iPod can mean any kind or version its to general, instead say "iPod Touch 2G 8GB".
Updates should be more frequent now I have alot more time on my hands.
Apparently, the Toshiba Thrive can interwork with standard USB DAC:
http://www.extreamsd.com/USBAudioRecorderPRO/
https://play.google.com/store/apps/...vbS5leHRyZWFtc2QudXNiYXVkaW9yZWNvcmRlcnBybyJd
http://www.linnrecords.com/recording-highwire.aspx
Toshiba Thrive > digital USB audio out >> USB DAC/amp >> headphones
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Thought it only worked piping the mic through, people keep saying audio out doesn't work on and keep bugging me to "fix" it in my kernels and ROMs. This works for audio out as well?
Sent from my Galaxy Nexus using Tapatalk 2
I have tested my May Flash N64 Controller Adapter for PC USB with it and it works just fine (with BT/USB Joycenter running).
Is it possible to use this cheap 5-pin Micro-USB, type B - male to 4 pin USB typ A - female adapter to plug in a usb-keyboard to the note?
Or is it something special about these OTG-cables?
Please see the attached file.
digitalaflaesk said:
Is it possible to use this cheap 5-pin Micro-USB, type B - male to 4 pin USB typ A - female adapter to plug in a usb-keyboard to the note? Or is it something special about these OTG-cables?
Click to expand...
Click to collapse
I have tried a simple adaptor and it did not work - there are very similar looking adaptors that are OTG though.
Personally, I prefer to use a mini Bluetooth keyboard with integral "mouse" touchpad or an OTG cable to connect a similar USB keyboard rather than an OTG adaptor as I worry that I may lever the adaptor by catching it and cause damage by the straining the micro USB socket in the Note.
When you plug in an OTG adaptor or cable, the Note comes up with the message "USB connector connected" - a plain adaptor does not cause a message.
The picture below shows, from top to bottom, OTG USB adaptor connector, OTG USB adaptor lead, Wireless mini keyboard with mouse "touchpad", Bluetooth mini keyboard with mouse "touchpad".
Both mini keyboards came with wireless or bluetooth receivers which do not work with the Note as, I assume, they need "Windows" type drivers. The Wireless one cannot therefore be used with the Note (even though it also has a mini USB connection - probably only for charging use) whereas the Bluetooth one does work can as it connects using the inbuilt Android/Note bluetooth rather than using the supplied mini USB bluetooth receiver.
Hope this helps!
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
USB-OTG (they're all the same) works perfectly with some USB keyboards and mouses but not with all of them. I'm using Genius mouse and Microsoft Wired 200 keyboard.
Thanks, i'll try it. If it works it works
btw, neat bluetooth keyboard/mouse you got there!
I have a mini-wireless USB keyboard/trackpad from Kogan that looks closer to the mini-Bluetooth one in the 2nd post, and that works fine with my usb2Go adaptor and the Note. I know both look similar, but the button configuration under the trackpad on mine is the same as the Bluetooth one.
I like the idea of the bluetooth one mind you!
Regards,
Dave
htc6500uk said:
whereas the Bluetooth one does work can as it connects using the inbuilt Android/Note bluetooth rather than using the supplied mini USB bluetooth receiver.
Click to expand...
Click to collapse
Thanks for that info, very useful. I'm considering getting one, can you advise where you got yours (a link would be great, if not, a manufacturer name and/or part number would do ... worst case can you advise approx price & dimensions?)
Although I have a USB one I bought from Kogan, this thread made me aware that there were now bluetooth ones too, so I've just ordered this one from Ebay:
http://www.ebay.co.uk/itm/Rii-Mini-i6-Bluetooth-IR-Keyboard-Touchpad-2-1-UK-Latest-Version-2011-/250901297139?pt=UK_Computing_ComputerComponents_KeyboardsMice&hash=item3a6ae1f7f3#ht_2215wt_905
It seems to be a slightly later design/model than the one shown in the 2nd post here, but you can find that too if you search ebay with the term "mini bluetooth keyboard rii".
Regards,
Dave
looks good - the universal learning IR remote is a nice add-on too. Let us know how it performs when you get it ...
meantime, I see you've got a wireless USB k/b already working via USB OTG. I'm awaiting my OTG adaptor so I can try that out with my existing (compact, but not mini) wireless k/b with optical trackball. Not sure how much current the Note can supply for OTG usage but I guess I can just use a powered hub if required?
I haven't ordered a Nexus 7 yet, as I need to get this question answered. I have read the OTG thread in general, but no answers to this.
Since OTG is now working, if you use a Y cable, can you charge while playing media off of a thumb drive?
I want to use the nexus to replace my in car dash mountEd Samsung galaxy tab 7, and 16 gigs isn't enough space (podcasts, [video and audio] and my music), and I need it to be able to charge while driving.
Thanks in advance.
Sent from my ADR6425LVW using Tapatalk 2
It sounds like it would work, but I've never seen a Y usb cable, only usb hubs.
Sent from my R800i using xda app-developers app
There are a lot of them.
http://www.amazon.com/Apricorn-Power-Adapter-Cable-AUSB-Y/dp/B000JIOHDE
There is an example. Plug one end into the charger, the USB thumb drive into the female end, and the other into the USB OTG dongle.
Sent from my ADR6425LVW using Tapatalk 2
RED ZMAN said:
There are a lot of them.
http://www.amazon.com/Apricorn-Power-Adapter-Cable-AUSB-Y/dp/B000JIOHDE
There is an example. Plug one end into the charger, the USB thumb drive into the female end, and the other into the USB OTG dongle.
Sent from my ADR6425LVW using Tapatalk 2
Click to expand...
Click to collapse
http://www.amazon.com/Utstarcom-Uni...=1342116083&sr=1-1&keywords=usb+power+y+cable
http://www.cellphoneshop.net/usbycable.html
Here are some cheaper versions
Off the top of my head, the cables listed won't work as-is.
USB OTG is a male micro plug to female USB receptacle.
The Y cables have the requisite 2 male ends and one female, but they are connected wrong.
(I own several different ones, and they are all wired the same way, so I'm assuming that will be the case for a majority of these types of cables...)
These are desired to draw data & power from one of the male plugs, as well as drawing power from the second male plug. The female plug receives the data and the increased power from the second plug.
You would need a cable that actually has a male where those have female, and replaces the existing data/power male with a female.
(The more times I read that, the less sense it makes to me, so please let me know if more clarification is needed...)
Guys, that's just the first cable I found what I searched the Internet for a USB Y cable from my phone.
Thanks for your input though.
The question still stands, with the appropriate cables will it charge while you access data from a memory card?
I'm told this setup will work on the galaxy tab, I just want to know if it will work before I buy one.
Sent from my ADR6425LVW using Tapatalk 2
Now that these are arriving and in some peoples hands, can someone try this for me please?
Sent from my ADR6425LVW using Tapatalk 2
This is exactly a question I asked in general q&a. I would also love to know this as I was thinking about doing this.
Sent from my SGH-I777 using xda app-developers app
Eagletec H10A USB OTG
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Would this work, it seems to have a micro usb which I assume is a through power for changing and maybe would power usb hd?
Unknown.
I'm really surprised barely anyone is interested in this question...
Sent from my ADR6425LVW using Tapatalk 2
this is my understanding
otg usb take pin 4 and ground to pin 5, that's all that's special about them, and doesn't mess with the vcc (power wire)
however since the N7 is powering devices downstream, then also sending power upstream can damage the device...
i use the y-cable+power setup for my kindle fire because the usb port doesn't supply enough power, all it does is provide enough to power the device so the KF can read it
maybe we'll get this when we can use the pogo plugs
good reading in these threads:
http://forum.xda-developers.com/showthread.php?t=1613536
http://forum.xda-developers.com/showthread.php?t=1712117
@twobikes - there's a button on the top there that switches it from usb host to usb slave (thus turning off otg), which allows it to charge
twobikes said:
Would this work, it seems to have a micro usb which I assume is a through power for changing and maybe would power usb hd?
Click to expand...
Click to collapse
I have something exactly like that, didn't work.
Bump, anyone try yet?
Sent from my ADR6425LVW using Tapatalk 2
it works on samsung S3 with a usb hub i can connect a 160gb HDD wireless keyboard tongle and mouse and charge it at the same time why this should work for the N7 ??? /i will get on tomorrow afternoon then i can report
cazzo69 said:
it works on samsung S3 with a usb hub i can connect a 160gb HDD wireless keyboard tongle and mouse and charge it at the same time why this should work for the N7 ??? /i will get on tomorrow afternoon then i can report
Click to expand...
Click to collapse
Hey, that adapter that was posted above works for you? OTG and Charge at same time. I really need your reply. Thank you.
May be in the future, modder can modify Nexus 7' s kernel n add sth which make OTG cable work.
I'm not sure, because I've not received my N7 yet, but I think it will works
Sent from my MI-ONE Plus using xda premium
The VCC pin supplies energy to device from Android, right?
If we plug the VCC pin of the Android in a external source and the VCC pin of the device in another, sure, don't closing the circuit of VCC from Android to device, and supplying 5v, it will work, charging Android and using OTG function?
I was wondering if some kind of "jerry-rigged" solution, almost "doing a MacGyver on it" haha, would work.
* Please note the image is only for explanation, this is not a valid configuration, is totally fictitious.
I remember the problem with xperia arc before that using usb otg y-cable does not charge the phone. I even made one myself. It must have been the standard usb spec not to accept voltage in vbus when in host mode. But the xperia dock can charge and usb host at the same time. There is some sort of circuitry inside but none has posted a disassembly yet. I am guessing the current might have been pulsed via pwm.
My cheap china tablet won't do both either. It has two usb ports but only one hosts (but not charging), the other guests and charges.
The samsung has a proprietary port with many pins so it is irrelevant.
Yes the LiveDock charges and enable OTG at the same time.
This pic is from a member:
http://dl.xda-developers.com/attach...01fc2c2/1/1/0/4/0/1/7/IMG_20120603_234200.jpg
Is the LiveDock circuit board.
The specification on their website:
http://dx.com/p/jxd-s18-4-3-resisti...ad-tablet-pc-w-tf-wi-fi-g-sensor-black-161536
Teardown time!
RockChip RK2926 AE4T278 1245 (soc)
T659102 A1 TI 2GI A70T G4 (chip power controller)
Realtek RTL8188EUS 802.11b/g/n (wlan over usb 2.0 host, yes rk29xx supports up to 3 usb devices! 2x host 1x otg but they are not connected)
2x Geil 256X8DDR3 WT 1248 <CG1L256M88BA15DH> (ram)
Hynix H27UBG8T2BTR BC 250A (nand flash 2gb i believe)
F88_V1 <2012.12.06HM FS 1552> (pcb itself)
ZBH043GT-12 V1 (blacklight type: led 50k before eol, res; 480*272 4.3'' lcd)
Mali 400 MP2 (gpu)
Battery 3.7v 1100mah lithium ion
Pictures!
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Take care guys.
Hi and thank you !
do you know if the usb port is the OTG one ?
i try to figure out how to add bluetook or gps on this device, maybe if anyone know where are the free usb pins ..
Bizen-Ya said:
Hi and thank you !
do you know if the usb port is the OTG one ?
i try to figure out how to add bluetook or gps on this device, maybe if anyone know where are the free usb pins ..
Click to expand...
Click to collapse
I have the same problem i know that the realtek wifi device is usb connected to the soc but other then that i cannot find any other options of ways of connection more devices to it. I cannot find a datasheet of this chip on the www. And i have no idea what the right pins are. Maybe we can connect a hub to that usb port what is used by the wireless device and do it this way but i have no idea if this will work.
And no out of the box this little tablet does not have OGT.
The soc in fact does support's it (2x host 1x OGT) but it is not connected to anything on this pcb design. If i knew the pins i would surely try to mod it.
Thank you for providing information to everyone
ok, i have OTG working now..
this is just a power issue, i haved used a OTG+Power cable, that's working fine
next step, make the bluetooth dongle working ...
Bizen-Ya said:
ok, i have OTG working now..
this is just a power issue, i haved used a OTG+Power cable, that's working fine
next step, make the bluetooth dongle working ...
Click to expand...
Click to collapse
The OTG really works with this type of cable?
If so, then we should be using bluetooth dongles easily (as long as the firmware supports it or has drivers that can detect it)
Going to try the OTG+power cable, this would really make a difference in terms of usability.
Also guys the stock battery is weak. I replaced it with "2500mAh Rechargeable Li-ion Battery for Samsung Galaxy S 3 III I9300", only had to ditch the speaker, since the battery is quite bigger.
Lemzy said:
The OTG really works with this type of cable? View attachment 2314266
If so, then we should be using bluetooth dongles easily (as long as the firmware supports it or has drivers that can detect it)
Click to expand...
Click to collapse
No this wont work on the S18 tab. But yes if you replace the wireless realtek module and for example connect a hub to those pins and if android has the firmware you could connect more devices to the hub. Not sure if this will work through.
swcdude said:
Going to try the OTG+power cable, this would really make a difference in terms of usability.
Also guys the stock battery is weak. I replaced it with "2500mAh Rechargeable Li-ion Battery for Samsung Galaxy S 3 III I9300", only had to ditch the speaker, since the battery is quite bigger.
Click to expand...
Click to collapse
But really nice let me know some progress it indeed makes a huge different in use usability, i also replaced the battery with a 1800mah ion battery from a dead tom tom system(broken display), that had the same voltage(3.7) but the battery was dead so i had to put back the default one since i didn't had anything else that did fit in this tiny little tab haha.
Sorry for the quite slow response.
thank you very much
NiTrOwow said:
No this wont work on the S18 tab. But yes if you replace the wireless realtek module and for example connect a hub to those pins and if android has the firmware you could connect more devices to the hub. Not sure if this will work through.
But really nice let me know some progress it indeed makes a huge different in use usability, i also replaced the battery with a 1800mah ion battery from a dead tom tom system(broken display), that had the same voltage(3.7) but the battery was dead so i had to put back the default one since i didn't had anything else that did fit in this tiny little tab haha.
Click to expand...
Click to collapse
So is it possible to connect a game controller through the OTG + Power cable?
Lemzy said:
So is it possible to connect a game controller through the OTG + Power cable?
Click to expand...
Click to collapse
Please see the image of the soc. It does not have OTG on default. You have to got the datasheet and solder a OTG port on the soc itself.
That's actually the only thing that sucks about this device. No OTG, out of the box and no soc datasheet. Limilted support to all of the internal stuff itself. Is what makes it less fun for most of us. We are no pro's or people who are really good in reserving without a little bit of documentation or help. I would be glad if JXD would release more stuff about this device so more people can take a look at it and have fun with it in a diffrent way because the device itself it pretty useless out of the box in my opinion.
As i already said Otg is working fine on mine ....
I have sucessfully used my s18 with a USB GPS + powered USB otg cable and usbgps4 droid
Bizen-Ya said:
As i already said Otg is working fine on mine ....
I have sucessfully used my s18 with a USB GPS + powered USB otg cable and usbgps4 droid
Click to expand...
Click to collapse
So you're saying that otg worked on your S18-03-XXXX device?
Strange i still did not had time to check it yet. And is also is strange because manufacturer does not say it had any. The soc is capable of 3 otg devices on the host but those aren't connected following all the technical details i read on their website and other re-seller's website. If you pull the device brand new out of the box and connect a otg device it should not work according to the manuals and details on their website, or they changed the pcb design and newer version has this feature enabled.. Can you post your model number?
Otg works with external power
I hope this is no considered spamming, as I posted same info on other thread.
I have s18-03-201305-4GB-01748.
I guess they are not listing device as otg capable because device is not delivering any power to otg devices, so you need always power injecting cable. Otherwise device is not anyway restricted. Actually firmware has quite extensive hardware support as you can see by browsing driver folders on device.
I registered just to tell you that otg works perfectly with power injecting cable. Tested 2 TB NTFS drive and apple usb - Ethernet dongle. Both work well. Also you can use this device as WiFi ap with Ethernet dongle. I am planning to use this as portable server. I just hope somebody gets interested making updated firmware.
I may be repeating but I say once more. There is no need to do any hardware hacking to get otg working. Just get power injecting USB cable. You might have to put WiFi off and back on to get your USB device connected. I think this triggers device initialization.
Frank Blah said:
I hope this is no considered spamming, as I posted same info on other thread.
I have s18-03-201305-4GB-01748.
I guess they are not listing device as otg capable because device is not delivering any power to otg devices, so you need always power injecting cable. Otherwise device is not anyway restricted. Actually firmware has quite extensive hardware support as you can see by browsing driver folders on device.
I registered just to tell you that otg works perfectly with power injecting cable. Tested 2 TB NTFS drive and apple usb - Ethernet dongle. Both work well. Also you can use this device as WiFi ap with Ethernet dongle. I am planning to use this as portable server. I just hope somebody gets interested making updated firmware.
I may be repeating but I say once more. There is no need to do any hardware hacking to get otg working. Just get power injecting USB cable. You might have to put WiFi off and back on to get your USB device connected. I think this triggers device initialization.
Click to expand...
Click to collapse
Thanks Frank and Nitrow.
Yes, don't give up too quickly when testing Host mode on USB ports.
They might have no charge pump, an inadequate charge pump or inadequate capacitance for inrush current.
You usually will need an OTG adapter to ground the ID pin.
A power splitter cord will work, but you can't usually find one locally.
I use a "back-powering" hub.
That's a cheapy hub that has the protection diode bypassed.
Some really cheap hubs already have it shorted.
See: http://forum.xda-developers.com/showpost.php?p=25639514&postcount=8
Try a keyboard first because they draw minimal current and they have a simple driver.
Some flash drives and GPS units are real current hogs.
Renate NST said:
Yes, don't give up too quickly when testing Host mode on USB ports.
They might have no charge pump, an inadequate charge pump or inadequate capacitance for inrush current.
You usually will need an OTG adapter to ground the ID pin.
A power splitter cord will work, but you can't usually find one locally.
I use a "back-powering" hub.
That's a cheapy hub that has the protection diode bypassed.
Some really cheap hubs already have it shorted.
See: http://forum.xda-developers.com/showpost.php?p=25639514&postcount=8
Try a keyboard first because they draw minimal current and they have a simple driver.
Some flash drives and GPS units are real current hogs.
Click to expand...
Click to collapse
Yes but i wanted to make a dedicated otg connected hard-wired to the print. but those connections (pins) on the board are too small and i can still not find a soc datasheet for the rockchip. I searched on the entire internet. It still isn't there...
Step one is to get USB host mode working any way you can.
Then you can discuss hacking it internally.
The other USB ports may be internally hubbed and not do host mode.
They may not have Id connections and you'd have to hack the driver/issue device commands.
Renate NST said:
Step one is to get USB host mode working any way you can.
Then you can discuss hacking it internally.
The other USB ports may be internally hubbed and not do host mode.
They may not have Id connections and you'd have to hack the driver/issue device commands.
Click to expand...
Click to collapse
That's not the problem since it is already reported to work on never soc, i only need datasheet and chip pin-out.
http://pdf.elecfans.com/NXP/LPC2926.html
It just sucks. I will sell this thing and buy myself a beagleboard instead. That's what i probably will do.
Did any of you try to run this without an battery in the unit. So only on adapter?
I am thinking of using one as an dedicated clock.
I also want to point out that there are two versions of this device for those that don't know this.