yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Accessories] Mi|enko:
What I'd love to see is a case that plugs into the usb port and has a built in microSD slot (or even a full SD slot, don't care which) and a port for charging.
[Nexus 7 Accessories] Maturola:
The link is something like "http://igg.me/"... the link is right under the "Video", under the "share this" section. (there is a picture on the website - link on my signature)
[Nexus 7 Accessories] hikaricloud:
D'oh, why didn't I notice that? :| Go me.
[Nexus 7 Accessories] Leoisright:
out of curiosity how is this different then something like this?

http://www.newegg.com/Product/Product.aspx?Item=9SIA1MR0ES0806

I get the battery charger but all in all this would achieve the same thing correct? Please disregard if this isn't what you guys are thinking.
[Nexus 7 Accessories] Maturola:
The Description on that item is VERY misleading. the Brand is "Technocel Universal Micro" and they have a "USB" Battery pack with a Micro SD Reader

They do not have a Micro-USB
[Nexus 7 Accessories] Leoisright:
yeah they do contain the micro usb. Shows a picture of it. Even title says, MicroUSB charger with MicroSD reader. Not trying to start anything. I went out today to build one until I ran across this device. The micro USB comes out the side.
[Nexus 7 Accessories] Maturola:
You are right... I see it this time on the side..

besides the fact that is huge, yes it should work just fine.
[Nexus 7 Accessories] Leoisright:
agreed, urs is very cool due to size is perfect. No worries, i'll still kick over a few bucks this week to ur project cause I like the idea of just the usb/sdcard
[Nexus 7 Accessories] nerys71:
lets be clear. that newegg device DOES have a micro usb plug but that is a CHARGING PLUG. no "data" transfers over that plug. IE its made to "charge up" your phone. NOT link the sd card to your phone. the reason that thing is large is that is has a 600mah BATTERY inside an "emergency" charger for your phone.

to add more "functionality" to it they also made it do double duty as a "mSD" reader. ie a thumb drive.
[Nexus 7 Accessories] Leoisright:
Well, how does it serve as a microSD card reader? It looks like the reader is in the bigger USB plug that slides in and out which would lead me to believe the microusb would be the data transfer as well. It's says doubles as a microSD reader. But hey, $10 bucks is cheap.

None the less, I've ordered a few of them for my own little project anyway. Time will tell and really didn't plan on hijacking this thread. Good luck on the fund raising.
[Nexus 7 Accessories] smirkis:
you can carry that with an otg adapter/cable, put a microsd card inside the usb port side, and plug it in. when you are low on battery, flip out the microusb port and charge it up. unfortunately it is not a microusb to microsd card reader. there are some out there, just not of a nice tiny size.

i like the project maturola is doing, i just don't like those project startup websites. i've kicked money to a few on kickstarter and never saw squat lol. or it took over 6 months and by then new devices came out or the chinese already copied it. no offense, thats just my opinion.
[Nexus 7 Accessories] nerys71:
all "starup" type stuff is always a gamble and 80% or even 90% of the time YOU WILL LOSE and get nothing.

that is the nature of startups. and many times its not a scam or anything like that it just did not work out. happens. when you seek out "capital" and "investments" this is what happens sometimes you just lose.

these sites allow "small" guys like us to give these kinds of things a shot. ie direct community support. always a good thing but again when you "invest" in a maker always ASSUME the money is going to go "poof" and if you get something. bonus.
[Nexus 7 Accessories] Leoisright:
Exactly. This is why I plan on kicking over a few bucks to this idea. While ideas may not see the light of day, hopefully this one will. Would love to see it make it.
[Nexus 7 Accessories] Leoisright:
Nevermind
[Nexus 7 Accessories] Maturola:
I got the wireless charging dev board for the Nexus 7 case project we are working on, I haven't had a chance to test it yet :good:
[Nexus 7 Accessories] Leoisright:
Nice. That would be great.
[Nexus 7 Accessories] psolord:
Hey guys.

I used the following solution as a test, on my Cube U30GT.

I combined

http://dx.com/p/usb-female-to-micro-usb-adapter-connector-145001

+

http://dx.com/p/mini-usb-micro-sd-tf-card-reader-w-cell-phone-strap-max-64gb-random-color-125517

+

http://www.amazon.co.uk/Sandisk-Ult...KM30/ref=sr_1_1?ie=UTF8&qid=1353149100&sr=8-1

Here are some (bad-sorry) pics of the adapter attached to the tablet. The reader itself was not attached when the pictures were taken, but the reader is miniscule anyway.

Ok it's not as classy as what maturola's designed, but hey it works and it's not all that bulky. The good thing is that adapter rotates and you can fold it upwards, downwards or whatever.
[Nexus 7 Accessories] hikaricloud:
Not as classy, but still good, I like that USB to micro USB adapter...better than other ones I've seen.

As much as I really like the project, I can't help but feeling like the goal may not be met. :\ I hope I'm wrong. I'll keep telling anyone else who may be interested.
[Nexus 7 Accessories] keyra74:
this is what i have

compared size to a pc dvi adapter :

a micro usb male to female usb / micro sd reader
[Nexus 7 Accessories] comdei:
if a company many a tiny microusb to SD connector I would pay like 20+ for it..
[Nexus 7 Accessories] Padiwan:
Hi guys,

It's my first post in this forum and I've read almost every post of this 20 pages thread trying to find the best (smallest) solution to put more GB on my Nexus 7. I bought some components and I'm ready to make a DIY micro usb to micro sd adapter, however, I'm having trouble finding how to wire the interface between the USB and the mSD card. My intuition says it has to be really simple, as some usb-to-sd look just like some pin-to-pin connections...

It would be really helpful if someone could share some schematic showing how to wire the 4 (well, 5) pin micro-USB and the 9 pin mSD socket.

After that, if I succeed building my "prototype" I will share with all the details of my simple solution!

I was also thinking in adding a female micro usb socket to be able to charge the tablet while watching a hd movie, for example. I don't know if it would be possible, but my intuition is that it has to be, because there are some samsung card readers for the Galaxy models that includes a micro usb plug to charge the phone...

Well, thanks in advance and thank you for sharing all the info here!
[Nexus 7 Accessories] Leoisright:
+1 on that for me. I've ordered the parts but my luck I will solder the ground cable to the power pin and mess it all up.
[Nexus 7 Accessories] Pac5714:
Wonder if a product like this 1 paired with this 2 would work by putting the microsd into the usb adapter then placing the usb into an OTG type adapter cable?

http://www.target.com/p/dane-microsdhc-dane-elec-8gb/-/A-13815493

http://www.amazon.com/gp/product/B0...11189&creative=373489&creativeASIN=B005QX7KYU
[Nexus 7 Accessories] Maturola:
It works flawlessly

The reason you are having trouble is because there is not way to pin to pin wire those 2, those are two completely different interfaces you need a microchip that can bridge those two. as for the power goes, it is not as simple either you need some regulation and power managements to accomplish what you want or you are going to either burn out the Host by supplying too much current or burning the device.
[Nexus 7 Accessories] Padiwan:
Thanks Maturola for your help. I understand it has to be some power regulation (I think SD cards use 3.3V while USB provides 5V right?), and probably a chip, but it has to be a fairly simple thing, since they are really small micro-sd readers that doesn't seem to have a lot of circuitry inside.

I understand you have put a lot of work in this and you are trying really hard to take it to the next level (production), that's why I don't expect you to provide me with all the details and help I'd like to have, I understand that and I wish you the best of luck :good:

I know I'm missing something here. I'm asking myself questions that you guys have to have solved long time ago, I hope somebody can help me!
[Nexus 7 Accessories] Maturola:
You must had misunderstood my words, I'll be happy to share and even draw schematics for you if you tell me exactly what you want to do, I cannot share the schematics I am using for my design since the chip is under NDA for my Company, but if you find a chip that you would like to use I will tell you exactly how to connect it, however that is not as simple as you seen to think specially the power part and it is usually not something you can do at home (unless you are like me have a soldering irons, heat guns, microscope and other electronics Lab components at home)

for DYI kind of stuff, what most people do, is to buy a MicroSD to USB adapter (the smaller you can buy), rip it apart, and solder the USB interface to the MicroUSB connecotr and then cover it with either hot glue or heat shrink.

As i said i'll be happy to support you, or anyone on this community on any hardware question, my project wasn't created to make me rich or create a business out of it, I got my nexus 7 and I love it but I needed more storage, I went out and try to find a solution and there was not one out there small and simple enough so I went ahead and create one however manufacturing 1 or 10 is crazy expensive so I wanted to get a large group of people together so we can build maybe 500 and all get a price break and a nice device at the same time.

if you have an specific question, microchip, connection you would like support on, all you need to do is ask
[Nexus 7 Accessories] Padiwan:
Not at all! Thank you for your kind answer Maturola, and don't get me wrong, I just felt it would be normal for you not to give away a lot of info, I'm not telling I read it in your words.

So, I ripped apart the tiny microsd reader, and it seems it has some resistors and capacitors (maybe to make the led work?) and a black dot hiding what I guess is a very small chip.

I'm familiar with the soldering iron I have some lab equipment at home. I'll try to make my own card reader using the little pcb inside the tiny usb-to-mSD card reader :good:
[Nexus 7 Accessories] Maturola:
Cool, i got no plans on keeping anything for myself, I would support and share anything I am not legally bound to keep a secret.

The black dot it is in fact a covered interface chip.

This thread got a nice wiring diagram on how you can connect the USB traces to the MicroUSB connectorl

http://xdaforums.com/showthread.php?t=1790397
[Nexus 7 Accessories] Leoisright:
Thanks for this. I ordered a few of those miniusb adaptors from that site you listed. Now just waiting on a few cables from China to get here. Was gonna make a few for some friends for Christmas gifts.

I'm optimistic they make a dock with USB 3.0 because our hardware supports it, should be interesting if the pogo pins take advantage of this.
[Nexus 7 Accessories] Capt.PP:
Update: version v.2

Click on my Sig.
[Nexus 7 Accessories] quizface:
This is my little project, it holds micro SDHC up to 16GB (not tried 32GB yet ) and it works very well

I can make some more.... maybe.....
[Nexus 7 Accessories] T3kB0i:
PRACTICAL!

This is exactly what I want. Pretty soon we'll be using our mobile (tablet, phone) devices more so than our "portable" (laptop) devices. While I appriciate the appeal of a mSD card slot, this fantasy you have in the picture is a lot more practical

---------- Post added at 10:22 AM ---------- Previous post was at 10:06 AM ----------

Here is my design proposal:

* Have the MicroSD card slot at a 90 degree angle facing perpendicular to the MicroUSB connector.

* Have the MicroSD card slot below the MicroUSB connector

* Have the MicroSD card slot centered on the axis of the MicroUSB connector

* Use a metal/polycarbonate casing for MicroUSB "support"

* Have the length of the adapter be no longer/wider than the width of a MicroSD card on it's side

* Use slightly rounded edges, for a somewhat permanent design (ie: bluetooth USB)

This would, in my view, make for the shortest possible form factor. Yeah yeah, you keep saying it can't be done, but I don't wanna hear it. I'm just telling you what I would like in a design.

True story: When Steve Jobs first held the initial prototype for the iPad, he took it and instantly threw it in an aquarium. Millions of dollars worth of R&D and months, lost. Why? He said, "See those bubbles? There's air in this. Make it smaller." And left the board meeting.
[Nexus 7 Accessories] Maturola:
:D

Come on Slakers, Any CEO of company with 600Billion market cap and $100 Billion cash in the bank reading this; step up and design it...

:rolleyes:
[Nexus 7 Accessories] MPJ88:
here's my first attempt to use with my nexus 10:

http://xdaforums.com/showthread.php?p=34815358#post34815358
[Nexus 7 Accessories] T3kB0i:
That is exactly what I imagined! Except without the added width of the USB connector.

BTW: why do people always use legos? Wouldn't heatshrink make for slimmer/smaller form factor?
[Nexus 7 Accessories] cgundogan:
C310 OTG TF Card Reader w/ USB to Micro USB Adapter for Samsung i9100 / i9300 / i9220

Dx.com sku:174106
[Nexus 7 Accessories] Leoisright:
They did design one. Heres a link.

http://www.aliexpress.com/snapshot/209610941.html
[Nexus 7 Accessories] aalupatti:
thanks for this... I am happy to seen somebody has started to make it... In a few months , market will be flooded with many different types.
[Nexus 7 Accessories] Leoisright:
I still like the idea of the home made ones here. Ive ordered the parts to assemble some myself. But also, ordered 3 of these for my tablets. Will never buy a device with larger memory now that these do exist.
[Nexus 7 Accessories] Aleemz:
Cheaper from dx.com for the same item ;)
[Nexus 7 Accessories] funkysam78:
Hey guys, I made one with a flex a few days ago, lemi make a video on YouTube, next step.... Internal
[Nexus 7 Accessories] quizface:
like mine? http://xdaforums.com/showpost.php?p=34611574&postcount=30
[Nexus 7 Accessories] funkysam78:
Nope, thinner than that, I'll make a post now that I can add links.
[Nexus 7 Accessories] 4rz0:
Pics, and if it's good, you're my hero :D
[Nexus 7 Accessories] funkysam78:
http://xdaforums.com/showthread.php?t=2051949

I'l do a lower profile one later tonight, with shorter flex and incorporate into the case itself so all that will be visible is the micro SD slot.
[Nexus 7 Accessories] Classpro:
I don't see it at dx.com. Link? I'd like to get one. Could be smaller but best I've seen so far. Can anyone confirm that it will work with the n7?

Sent from my Nexus 7
[Nexus 7 Accessories] Aleemz:
You are right, searching for the sku doesn't find it on the site for some reason. Anyway, here it is:

http://dx.com/p/c310-otg-tf-card-re...er-for-samsung-i9100-i9300-i9220-n7100-174106
[Nexus 7 Accessories] holwill:
Has anyone suggested a noosy apple u-disk it is what I have and use with stick mount. The pen drive has 4gb built in and micro sd slot, so I have a 16 gb SanDisk card as well. Sorry If this has been posted already I was being a little bit lazy and did not want to read through the entire thread. :)
[Nexus 7 Accessories] atraperegrinus:
Max capacity: 16 GB

while im not complaining, this seems to make that thing obsolete compared to the ones discussed in this thread.
[Nexus 7 Accessories] Leoisright:
Well, this is more for travel size. Would image enough data could be placed on one, if not get a second microsd card. For how cheap this is, it seems like a great solution. If you need much larger, then connect a usb drive to an otg cable.

Cant image how this device would stop at 16gb. Will know more about it when they arrive. For $5+ and preofessionally done, win win.
[Nexus 7 Accessories] Classpro:
Thanks Aleemz. Order placed. Looking forward to playing with this.
[Nexus 7 Accessories] psolord:
Dx's mentioned specs are bogus quite often anyway. I just got an Android Mini PC that was stating 720P max resolution and it still works fine at 1080P.

So if anyone gets this please inform the rest of us.
[Nexus 7 Accessories] Leoisright:
Got mine in the mail today. 32gb micro sdcard works perfect. That device was worth the money
[Nexus 7 Accessories] aalupatti:
Can you post some pics... :fingers-crossed:
[Nexus 7 Accessories] Leoisright:
http://db.tt/T87iXCYu

Just took a quick pic. Ueading out the door. Doesn't really get in the way either. It would be nice to have it black or a bit smaller, but its microsd to microusb. Exactly what's needed. Sure better then spending an extra $100 to double the memory
[Nexus 7 Accessories] zakhaque:
hey guys, i intend to get the item from DX.com and break it apart and re-house it using some wonderful stuff called sugru to make to make the flex version.

all modders will appreciate this stuff once they've used it!

http://sugru.com/
[Nexus 7 Accessories] bobbytomorow:
How about something like this?

Would we be able to pop in a microSD plus a USB device or charge at the same time? Its a little big but seems useful for gaming etc...
[Nexus 7 Accessories] Maturola:
If you want something as big as that, go with this one, it works pretty well

http://www.amazon.com/Samsung-S2-Mu...ywords=samsung+galaxy+s2+micro+usb+to+microSD
[Nexus 7 Accessories] jsb5388:
Does it block the headphone jack on the Nexus 10?
[Nexus 7 Accessories] Leoisright:
Nope, they work fine together
[Nexus 7 Accessories] GammX1:
>> perhaps this one may help: http : // chilp.it/ 48c42e
[Nexus 7 Accessories] CB620:
Amazing. I like seeing projects like this.

Sent from my HTC One XL
[Nexus 7 Accessories] smirkis:
is that a 32gb sdcard i notice in a 16gb max reader? if so, glad to know its capable of more then advertised.
[Nexus 7 Accessories] Leoisright:
Yeah, it handles more then they say.
[Nexus 7 Accessories] SystemErrorOne:
That would be epic.
[Nexus 7 Accessories] psolord:
Thanks for the info, friend.
[Nexus 7 Accessories] Leoisright:
I bet at the time of them making them, they didnt have 32 or higher. I see no reason why they wouldnt work. Anyone want to donate a 64gb microsd i can test. Haha...
[Nexus 7 Accessories] Pierre118:
Got my micro SD OTG today from DX : http://dx.com/p/c310-otg-tf-card-re...er-for-samsung-i9100-i9300-i9220-n7100-174106

Like @Leoisright said, it's working without any problem with a 32gb micro SD in my Nexus 7. It's very small, i'm very happy with it. It should be black, but i'm not complaining.....
[Nexus 7 Accessories] Capt.PP:
That's huge, dude. This is much better.
[Nexus 7 Accessories] Pierre118:
You only need the left one in the picture, dude......so it's very small. The only disadvantage is that it is not black :)
[Nexus 7 Accessories] Capt.PP:
I was talking about the left one. The one you bought about 4 times the size of the micro USB's head. The one in the link I gave you only 1.5 the size of the micro USB's head when lugged in. But, whatever float your boat.
[Nexus 7 Accessories] Maturola:
the one you linked is gigantic, and you still need to add the actual USB to MicroSD adapter to that. making it even bigger
[Nexus 7 Accessories] Leoisright:
I have that as well. Both serve the job fine this one is great for flash drives or external drives.
[Nexus 7 Accessories] Capt.PP:
You counted the length of his adapter compared to the one i linked it's shorter but that's not my point. I'm counting when you plugged into the device. The one i linked when plugged in only 1.5 time compared to his 4 times the size of the microUSB's head. The one i linked, even with USB to microSD adapter plugged into the otg will layed along the bottom side of the phone/tablet without sticking outside of the bottom side of the phone/tablet. So, the one i linked is longer but it's irrelevant.
[Nexus 7 Accessories] Pierre118:
You are right, pfffff........just wanted to give information, no need for competition. Both are fine.
[Nexus 7 Accessories] Maturola:
This really made me LOL :o
[Nexus 7 Accessories] Capt.PP:
Yup, only FYI. I was just proving my point of what i meant. To me, it's longer but laying along the bottom of the device without sticking out much vertically is more important.
[Nexus 7 Accessories] ondris:
Don't know if these accesories have been listed yet but take a look:

A nano micro sd reader: http://cgi.ebay.fr/PNY-Phone-Baby-M...rs_Adapters&hash=item3f1eaed14d#ht_2101wt_902

This one is really cool take a look at this video: http://www.youtube.com/watch?v=c5ji64shFRA

And a compact micro usb to usb otg adapter: http://cgi.ebay.fr/ws/eBayISAPI.dll...XX:IT&_trksid=p3984.m1436.l2649#ht_2237wt_781
[Nexus 7 Accessories] BobK46:
I have the last one. I found it after I made my own, not as neat but smaller!
[Nexus 7 Accessories] r00t4rd3d:
This is my advanced setup.
[Nexus 7 Accessories] TCPModding:
I have seen this cord on amazon and wondered it it really works for this tablet. Will probably order it but I want to make one too just because... Any design ideas?

Sent from my UnLocked + Rooted Nexus 7 Using the XDA-Developers app
[Nexus 7 Accessories] nerys71:
I got the little tiny micro usb direct to mSD adaptor for $5 from dx.com. WONDERFUL. FLAT OUT WONDERFUL.

I am buying 3 more. first its pretty big actually but there is an upside. open it up and its MICRO in extreme and RIPE for hacking. BONUS it works in BOTH my S3 and my Note II (my other adaptor not only stopped working all together but it would work in the Note II but not the S3 for some reason)

this is so much nicer. takes a little modding but the result is amazingly convenient. love the USB adaptor that comes with it too.

pop that little bugger open (it opens) and this slides right out easily

notice that little bit of plastic I cut up? thats for this

so you end up with this

and because its not so skinny it fits even with my super thick protective cases NO problem.

LOVE IT

and in my Note II with its super thick case.

now that I know it works I will properly glue that cap in place and get rid of the ugly tape and put some heat shrink tubing on it ti pretty it up.

THERE ARE ALSO 5 distinct "contacts" actually tiny rigid wires. so it should be possible to snip them and add "wires" to allow a tiny plug on the device and the actual SD slot to be mounted to the BACK of the device. this will permit "semi permanent" installations on screwed up devices like the nexus ten that some idiot though would be a great idea to make a 2550x1440 display panel power house device with only 16gb of useless storage. morons :)
[Nexus 7 Accessories] TCPModding:
Thanks for the idea will look it up today. I will probably add cable to not make out so rigid. I tend to bump things a lot...

Sent from my UnLocked + Rooted Nexus 7 Using the XDA-Developers app
[Nexus 7 Accessories] r00t4rd3d:
I been thinking about trying to wire up a USB SSD. They are almost flat and could be put inside the case. The USB header would have to be shortened or removed but I think it could work. Power it off the battery and run wires for data to the USB port.

http://www.amazon.com/Embedded-PARTS-QUICK-Mini-ITX-industrial-motherboards/dp/B00724HO9W
[Nexus 7 Accessories] fljoe:
Got my OTG from DealeXtreme

Finally got my OTG device from DealExtreme. Works great with a 32GB microSDHC card.
[Nexus 7 Accessories] jonsingh12:
You can get a simple OTG to USB and use this

http://www.ebay.ca/itm/USB-2-0-A-To...d_Readers_Adapters&hash=item43b722cb70&_uhb=1

Very slim highly recommend that,

Or

http://www.ebay.ca/itm/Micro-USB-OT...d_Readers_Adapters&hash=item2ebfc6bf5f&_uhb=1
[Nexus 7 Accessories] bsoplinger:
I have a pair of those tiny microSD readers I use with my netbook since it desperately needed additional memory. When connected to a short OTG microSD to female USB adapter I get 64G of storage in a less than 2" device. I might get one of those right angle ones for use with the Nexus.
[Nexus 7 Accessories] BobK46:
Below are the devices I made for My Nexus 7. You can buy similar for less but, I enjoy making my own
[Nexus 7 Accessories] Capt.PP:
That's the spirit! :good: