Hi all,
Such devices like Xperia U,P.... iPhones,
and some other devices which have no
external storage but USB OTG supported,
can use SD card or pen drive with OTG.
There are many kind of OTG cables, but it
is very hard to carry an OTG cable & a card
reader all the time, so i am thinking of an
OTG with card reader in a very small (as
small as it can be) form which can be carried
all the time.
the card reader will b stored(may be fixed)
with the back cover(as shown in the pictures)
.
i am usuing very small card reader slot, thin
wire(like insulated copper coil wire), a tiny
siwtch(on/off).
pictures
http://d-h.st/4xT
http://d-h.st/NU4
As we know, in OTG pin 4 and 5 are
shorted so i am usuing a tiny switch, when i
switch on, the pin 4 & 5 are shorted & the
cable will work as OTG, & when i switch off
it will turn as a normal USB cable, so there
will be no Battery Drain.
i am trying to configure it ,but having
problem when soldering the wires with the
micro usb male port.
The connections are so tiny, so it is very
hard to make it alone, i tested it in a bit
large form & it workes, but in small size as
shown in figure it becomes very hard to make
it ,,,,,,,
i am requesting you all to try it & make it
by yourself,
if we can make it personally i think one day
such cables will b available in market in very
stable form for all usurs.
Related
Hey guys, is there an external card reader that would plug into the micro USB port on the captivate? I've been searching for a while but all I can find is micro SD to SD card adapters when I would like to import photos from a camera right into the phone
It would be a shame to have to just use micro SD cards to use the internal slot. Thanks!
phrenicthenub said:
Hey guys, is there an external card reader that would plug into the micro USB port on the captivate? I've been searching for a while but all I can find is micro SD to SD card adapters when I would like to import photos from a camera right into the phone
It would be a shame to have to just use micro SD cards to use the internal slot. Thanks!
Click to expand...
Click to collapse
I dont know of one that exists. But if youre trying to import your pictures you are going to be better off just inserting the micro sd into your phone and then copying all the image files to the phone. Its essentially the same process you would do if you had an external SD card reader except you actually have to put the SD card in the phone.
here u go.
http://www.ebay.com/itm/1PCS-New-US...e_Internal&hash=item256a3d60c1#ht_1629wt_1144
I'm not sure that there is such a beast that would plug into the microUSB, and if there was, I'm not certain that the Captivate has the functionality/interface to read and copy from the microUSB Slot. I'm pretty sure you need the computer as a go-between if the microSD isn't in the phone itself.
I think your best bet is directly putting the microSD from the Camera into the Cappy or you'll have to upload them to the computer first, then to the phone. Sorry
I've always wanted something like that, its a great idea but such a thing doesn't exist. Closest thing would be to get the flash drive adapter with the microSD slot built in.
Sent from my GT-I9000 using xda premium
Yeah, that's not really possible. For one thing it's a jack, not a plug. For another, it would need to power the device attached to it while still being able to be powered from the same port for charging. For another, it would need to be able to configure as a device or a host which would really be hard. And another, it would need to have drivers for SD readers, FAT, NTFS, and all kinds of other things.
this would probably be you best bet
http://forum.xda-developers.com/showthread.php?t=1450298
Sent from my GT-I9000 using xda premium
Wow. I stand corrected. That's a really flexible controller chip. They should have shown a backup battery being used as well in the pics too.
a kernel with USB HOST mode,
a USB OTG cable
a USB to micro USB cable
a USB card reader
a SD to microSD adapter.
and you can do exactly what you want....
but you will need a back pack to carry all your cables and adapters.
One step could be saved with this
http://www.alibaba.com/product-gs/451581054/XLY_USB_014_USB_Y_Cable.html
But nobody sells it, and who wants to splice USB cables?
This one?
Like this one?
http://www.hkbolton.com/Sumsung-Galaxy-OTG-Micro-USB-Card-Reader-p45.html
I'm looking for the same.
How about this?
http://www.dealextreme.com/p/otg-card-reader-for-samsung-galaxy-i9100-i9220-126457?item=7
This part is odd:
- With own browser and ES browser
- File system format: FAT32 (does not support NTFS)
in general for any phone or tablet
an external hardrive like 1 or 1.5TB with USB will be a dream, u can power the drive with extra USB. But what about powering device with the screen? I think it will run out of juice much faster in this kind of setup. Your thoughts?
From the research I have done, it requires an org cable, an USB y-cable for hooking up an external power, and a from with org support. The two cables can be found on Amazon for 2-5$. You could use any USB charger or for portability... get one of the battery packs with USB output. Portable, but it is a lot to carry around.
You can also use a powered USB hub in place of the y cable.
Sent from my SGH-I897 using Tapatalk 2
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Some high-end Android phones and most of today’s Android tablets support USB OTG (On-The-Go). This enables users to connect standard USB input devices such as keyboards and mice, or even extend storage using a regular USB pen drive. However, only a few Android tablets are equipped with a USB host port (Type A Female connector), while no mobile phone is. Some mobile phone manufacturers ship USB host ports with their handsets while others have them as optional accessories, usually at a premium price.
In order to connect an Android phone to a standard USB device, you need to use a micro (or mini) USB to USB Type A Female convertor, but this should also be an OTG cable. A mini USB OTG cable is available in the market and can cost you around Rs.150 – Rs.300, but finding vendors who actually sell it is not easy. The ones that are available are not guaranteed to work. The case of the micro USB OTG cables is also similar.
USB connector types
In this workshop, we show you how you can build yourself an OTG cable (be it micro or mini) at almost no cost. Do note that the procedure mentioned here will involve hacking into your existing cable, and even a small blunder can potentially damage your cable or the device you use it with. Proceed with extreme caution as we take no responsibility for any damages to your device. Do this at your own risk. Furthermore, do take note of your Android specs and check carefully to see if it has OTG capabilities before trying out this workshop. Phones don’t need to be rooted as the stock ROM usually supports OTG in compatible handsets. Those who have installed third-party developer ROMs should check with the developers if the OTG feature is enabled in the kernel.
Slicing the connector sleeve
Since all phones usually ship with cables, we suggest you opt for a second one from the market to create the OTG cable. For those who are not able to find a similar cable, this workshop will also show you how you can use the same cable for regular and OTG modes. In the following procedure, we'll be using a micro USB cable that we’ll convert to be used with USB OTG.
Requirements:
A standard mini or micro USB cable
Some small, thin wires
A sharp knife
Soldering iron and solder wire
Wire cutter
Hot glue or any quick glue
Firstly, we need to slice open the micro USB connector end very carefully using a knife. The idea here is to cut the outer sleeve (length-wise) into two halves to reveal the connector inside. Be careful not to destroy the outer sleeve as we shall be glueing it back on after the work is done.
A miniature switch
After the sleeve is taken apart, some of you might find a whitish plastic mould covering the connector’s leads. This is for strengthening the cable to connector contacts, and its use depends from manufacturer to manufacturer. Those who have this mould will also have to cut through it to reveal the connector leads. On revealing the connector leads, you will find that it has five leads and not four. The usual four are power, data, data and ground, while the non-connected lead is sense. This lead needs to be grounded before connecting the cable for the phone to switch to OTG mode and sense a USB device connected to the interface.
The difference - circuit
Given above is the pin-out diagram for the micro and mini USB connector.
Pin 1: VCC
Pin 2: data
Pin 3: data
Pin 4 Not connected / unused
Pin 5: ground
In order to get the phone to go into OTG mode, we need to short Pins 4 and 5. You can either choose to short them permanently by soldering them together or soldering two wires to each of the pins and leading those outwards from the connector, which can then be soldered to a small switch. Using the switch, we can switch the cable between normal and OTG whenever needed. If you choose to short it permanently, you will have to cut off the connector at the other end (The Type A Male USB connector) and solder a Type B Female connector to accommodate a USB device. You can also choose to have a male to female USB convertor at that end. Here's what we did:
The connector and the sleeve
We chose to connect a small switch to the leads at Pin 4 and Pin 5 and glue the switch to the wire itself. This way, we could use the cable for both regular and OTG purposes. Next, we glued the connector sleeves back carefully using hot glue. Now the other end of the cable, which has a male USB connector, needed to be converted into a female. For this, we opted for the scrapped USB rear panel connector of a desktop PC. We soldered the wires of the USB connector to create a USB female-to-female convertor. Once done, we now have an OTG cable ready for use. Just to ensure we do not end up frying our phone, we used a multimeter to double-check any cable shortings during the soldering. Lastly, we connected the OTG cable to our Android (the Sony Ericsson Live with Walkman) and used a USB mouse with it. If your cable worked for you and your phone is compatible with OTG features, you can also connect a USB hub to the OTG cable and use a USB keyboard, mouse and pen drive together on the same Android device.
Micro USB Pin points
By following this workshop you can now conveniently use a pointing device to control your apps and games, use a keyboard to type e-mails and messages or use a pen drive to store or access media or large files. If you are lucky enough to find a micro USB connector and a Type A Female USB connector at an electronics store though, you can make your own OTG cable for under Rs.100.
I would have tried it but for to have a soldering device. I guess soldering device is a must for electronic stuffs.
Geek
Harsha Raj said:
I would have tried it but for to have a soldering device. I guess soldering device is a must for electronic stuffs.
Click to expand...
Click to collapse
A soldering device and a multimeter is a must when a geek is born
Thanks for that tutorial. I'm tempted to have a 32G pendrive in my pocket now
murpheus said:
Thanks for that tutorial. I'm tempted to have a 32G pendrive in my pocket now
Click to expand...
Click to collapse
It works like a Charm..... i wish it could support External HDD.... lol sorry for asking for more GOD
All you need Is
All u need is
Any Spare Data Cable
an old usb hub multi connector sounds perfect
cut the data cable wire and then cut the usb hub wire
join two ends according to diagram
use tape to join and u r done
for perfect job use soldering iron
for amazing job follow this Instructons
karan.champaneri said:
Some high-end Android phones and most of today’s Android tablets support USB OTG (On-The-Go). This enables users to connect standard USB input devices such as keyboards and mice, or even extend storage using a regular USB pen drive. However, only a few Android tablets are equipped with a USB host port (Type A Female connector), while no mobile phone is. Some mobile phone manufacturers ship USB host ports with their handsets while others have them as optional accessories, usually at a premium price.
In order to connect an Android phone to a standard USB device, you need to use a micro (or mini) USB to USB Type A Female convertor, but this should also be an OTG cable. A mini USB OTG cable is available in the market and can cost you around Rs.150 – Rs.300, but finding vendors who actually sell it is not easy. The ones that are available are not guaranteed to work. The case of the micro USB OTG cables is also similar.
USB connector types
In this workshop, we show you how you can build yourself an OTG cable (be it micro or mini) at almost no cost. Do note that the procedure mentioned here will involve hacking into your existing cable, and even a small blunder can potentially damage your cable or the device you use it with. Proceed with extreme caution as we take no responsibility for any damages to your device. Do this at your own risk. Furthermore, do take note of your Android specs and check carefully to see if it has OTG capabilities before trying out this workshop. Phones don’t need to be rooted as the stock ROM usually supports OTG in compatible handsets. Those who have installed third-party developer ROMs should check with the developers if the OTG feature is enabled in the kernel.
Slicing the connector sleeve
Since all phones usually ship with cables, we suggest you opt for a second one from the market to create the OTG cable. For those who are not able to find a similar cable, this workshop will also show you how you can use the same cable for regular and OTG modes. In the following procedure, we'll be using a micro USB cable that we’ll convert to be used with USB OTG.
Requirements:
A standard mini or micro USB cable
Some small, thin wires
A sharp knife
Soldering iron and solder wire
Wire cutter
Hot glue or any quick glue
Firstly, we need to slice open the micro USB connector end very carefully using a knife. The idea here is to cut the outer sleeve (length-wise) into two halves to reveal the connector inside. Be careful not to destroy the outer sleeve as we shall be glueing it back on after the work is done.
A miniature switch
After the sleeve is taken apart, some of you might find a whitish plastic mould covering the connector’s leads. This is for strengthening the cable to connector contacts, and its use depends from manufacturer to manufacturer. Those who have this mould will also have to cut through it to reveal the connector leads. On revealing the connector leads, you will find that it has five leads and not four. The usual four are power, data, data and ground, while the non-connected lead is sense. This lead needs to be grounded before connecting the cable for the phone to switch to OTG mode and sense a USB device connected to the interface.
The difference - circuit
Given above is the pin-out diagram for the micro and mini USB connector.
Pin 1: VCC
Pin 2: data
Pin 3: data
Pin 4 Not connected / unused
Pin 5: ground
In order to get the phone to go into OTG mode, we need to short Pins 4 and 5. You can either choose to short them permanently by soldering them together or soldering two wires to each of the pins and leading those outwards from the connector, which can then be soldered to a small switch. Using the switch, we can switch the cable between normal and OTG whenever needed. If you choose to short it permanently, you will have to cut off the connector at the other end (The Type A Male USB connector) and solder a Type B Female connector to accommodate a USB device. You can also choose to have a male to female USB convertor at that end. Here's what we did:
The connector and the sleeve
We chose to connect a small switch to the leads at Pin 4 and Pin 5 and glue the switch to the wire itself. This way, we could use the cable for both regular and OTG purposes. Next, we glued the connector sleeves back carefully using hot glue. Now the other end of the cable, which has a male USB connector, needed to be converted into a female. For this, we opted for the scrapped USB rear panel connector of a desktop PC. We soldered the wires of the USB connector to create a USB female-to-female convertor. Once done, we now have an OTG cable ready for use. Just to ensure we do not end up frying our phone, we used a multimeter to double-check any cable shortings during the soldering. Lastly, we connected the OTG cable to our Android (the Sony Ericsson Live with Walkman) and used a USB mouse with it. If your cable worked for you and your phone is compatible with OTG features, you can also connect a USB hub to the OTG cable and use a USB keyboard, mouse and pen drive together on the same Android device.
Micro USB Pin points
By following this workshop you can now conveniently use a pointing device to control your apps and games, use a keyboard to type e-mails and messages or use a pen drive to store or access media or large files. If you are lucky enough to find a micro USB connector and a Type A Female USB connector at an electronics store though, you can make your own OTG cable for under Rs.100.
Click to expand...
Click to collapse
hai mate,
may i ask something here??
i didn't see any white colour wire on your diagram and i also didn't see any ocean blue wire on your actual pic.. could you help me here??
Thank you.. very clear & easy tutorial...
karan.champaneri said:
It works like a Charm..... i wish it could support External HDD.... lol sorry for asking for more GOD
Click to expand...
Click to collapse
You can use OTG to run External HDD, all you need is to separate HDD's power and give it External 5Volts from any cigarette car charger, HDDs consume 1Amp at the most and 5.2 Volts are suitable for it
old HDDs that have Mini-USB with those 2 end USB male wires dont need moding just plug the power on a 5V supply, let the HDD start and plug the Data+Power to OTG cable, but becareful to unplug OTG first before you unplug the power, its not a safe way but it works with my HDDs ( tested on SGS2 :good:
I'm looking for a cover with microsd slot but I haven't found nothing. So I want to know if there are problem to make a thing like this or nobody hasn't thinked about it. I think that make it is possible because there are some OTG that read microsd(I have it) but with it I can't charge the phone and I'm afraid of break it when it is in my pants. I've thinked to make a cover with microsd slot and external battery(like the image below), it is possible?
The pin you marked with <?> is the key to USB OTG. In order for your stick/card to work, you'd have to connect that pin to ground. Then, when you wanna charge/access the phone (from a computer), you'd need to disconnect that pin.
The main problem that I see is that there isn't enough space between the original cover and the phone/battery. The second problem is that our beloved Nexus is old and many thinkers moved away to newer devices. And, to access the USB port internally, you'd have to open the phone, which would void the warranty (if the phone still has one).
PS: Still remembering those kind of math exercises from high-school
Why i need to disconnect the key to USB OTG when it is charging? If I'm right to charge the phone we only use the 5v and ground pin. I've thinked about create a cover like the picture below with the micro sd slot, so without opening the device. Hope that you can help me again
To put it simple when you use a OTG device (like a card reader) your phone powers the card reader (electricity flows from phone to device). When you connect your phone to a computer/charger the device will charge your phone (electricity flows from device to phone). This functionality is controlled by connecting pin 4 of the microUSB maje jack to ground. I've read that some Xperia phones have a 3rd option: if you connect a certain value resistor between pin 4 and ground, you could power both the phone and the card reader from your charger.
Cheers!
For those of you that have them... I have a question.
Is the USB micro connector in them the same as a standard micro USB cable? Or are they designed differently to minimize the insertion force that is typical of micro USB connectors.
I ask as if they are simply the same, it seems likely that a lot of stress can be put on the phone's port unless you are very careful when inserting and removing.
Solutions Etcetera said:
For those of you that have them... I have a question.
Is the USB micro connector in them the same as a standard micro USB cable? Or are they designed differently to minimize the insertion force that is typical of micro USB connectors.
I ask as if they are simply the same, it seems likely that a lot of stress can be put on the phone's port unless you are very careful when inserting and removing.
Click to expand...
Click to collapse
I have the Motorola PowerDock made by Griffin. Both the rear and the top are standard micro USB ports; however, the plug on the top that connects directly to the phone in the dock is on a pivot so the stress is minimal if any.
Solutions Etcetera said:
For those of you that have them... I have a question.
Is the USB micro connector in them the same as a standard micro USB cable? Or are they designed differently to minimize the insertion force that is typical of micro USB connectors.
I ask as if they are simply the same, it seems likely that a lot of stress can be put on the phone's port unless you are very careful when inserting and removing.
Click to expand...
Click to collapse
I produce the Lambda-Docks and did a little recherche on the net since people ask me about the ability to remove the doch one-handed. From the specifications I found it seems that the Micro USB is designed to have an extraction force of around 9N (! around 1kg).
We also have to note the the USB spec says that it is designed for around 1000 insertion/ectraction cycles.
With most manufacturers removing micro SD card slot from their flagship phones, Oneplus included, has anyone been able to expand storage through USB OTG? I'm currently on a different older phone, which has micro SD card slot, and I recently expanded my storage by replacing 256GB card with 1TB one.
While my OP9Pro is on the way, I'm thinking of purchasing a small USB-C micro SD card OTG adapter (something like this: https://smile.amazon.com/gp/product/B09L4NDV4T), unsolder the USB-C plug and insert a short ribbon cable between it and PCB. Then plug it into USB-C on the phone, and tuck the PCB with micro SD card inserted somewhere between the phone back cover and a case.
This obviously will require some case modding/dremeling to avoid bulges, but my biggest concern is whether or not I'm able to solder the microscopic leads on the USB-C connector and whether this whole setup will work anywhere close to internal micro SD card on older phones.
Am I dreaming or has anyone attempted this before?
Interesting idea, I'm curious how it works if you try it. Although I can't imagine needing that much internal storage all the time. I just have a dedicated 1TB USB-C flash drive that I copy stuff to that doesn't need to stay on my phone all the time.
terlynn4 said:
Interesting idea, I'm curious how it works if you try it. Although I can't imagine needing that much internal storage all the time. I just have a dedicated 1TB USB-C flash drive that I copy stuff to that doesn't need to stay on my phone all the time.
Click to expand...
Click to collapse
I didn't mean that I need all 1TB right now. I went from 256GB -> 1TB and currently have over 550GB free space left. However, I do backups (apps, using SwiftBackup, and TWRP backups). App backups must be on the phone all the time, since it's automatic and syncs to OneDrive; TWRP don't have to, but I like to carry them around just in case.. I also save all camera photos/videos to SD card. So it all adds up, and 256GB on the phone that I'm getting will feel tight.
I'll try this idea and update this thread if it's at least somewhat successful.
Would it not be easier to get a lil usb c extension cable and somehow modify the phone case than the actual phone itself?
The storage expansion card for Xbox Series X/ S delivers an additional 1TB of external memory while maintaining the same peak speed and performance of the console's internal SSD for a streamlined gaming experience.
Unfortunately, guys, using USB OTG is not an option. I recently tried to use the above-mentioned USB-C adapter without worrying about it sticking out too much, just for the proof of concept, and found that the card gets too hot, i.e. it's using a lot of power. This will kill the battery very quickly.
So this makes the idea a non-starter.