Possible to hook multiple devices up via micro usb port? - General Questions and Answers

Hello all. Planning to get a MHL 2.0 cable for my note 3 but I also want to hook up a keyboard and mouse. I have a logitech k/b that uses wireless signal via a USB dongle. I figured the OTG cable would suffice but naturally once the MHL cable is in, there is no way to also use the OTG cable. Curious if there is some sort of hub that allows at least 1x micro usb and 1x full size usb, or some sort of splitter? I realize a bluetooth keyboard and mouse is probably another solution but would prefer to avoid if I could.
Thanks!

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[Q] usb otg cable question

hi, i am planning on buying a micro usb to usb female cord and i wanted to plug the micro usb into the xoom, and a mouse into the usb female. would that mouse work with the xoom, or will the drivers for the mouse not work? thank you
I'm not sure, I don't use a mouse on my Xoom. But I have heard from other Xoom users that the Bluetooth Mouse works.
steineronie said:
hi, i am planning on buying a micro usb to usb female cord and i wanted to plug the micro usb into the xoom, and a mouse into the usb female. would that mouse work with the xoom, or will the drivers for the mouse not work? thank you
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If you want to use a USB connected mouse you need the Xoom to be in USB host mode. You need to have flashed a rom or kernel that supports USB host mode and you need a USB OTG cable, such as the Motorola Camera Connection cable. You can't just use a regular USB cable with a micro end and a female end.
but you can build your own OTG cable.
buy a micro usb B head
and a usb A recept
and solder it together
the schematic is quite the same like the factory cable
instead of soldering pin 1 to 5 (+) like the factory cable u have to solder pin 4 and 5 together (ground)
you can find a lot of DIY tut´s just google it
steineronie said:
hi, i am planning on buying a micro usb to usb female cord and i wanted to plug the micro usb into the xoom, and a mouse into the usb female. would that mouse work with the xoom, or will the drivers for the mouse not work? thank you
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I can provide OTG HDMI converter Factory cable. If you need, you can PM me.
Just bought this cable from Amazon
It works just fine with wireless Microsoft Keyboard+Mouse but was not able to make it work with my Lumix Camera and Card Reader. Seems there are problems with Android version 4.0.4
My Xoom is MZ604 WIFI only NOT Rooted. Keyboard and Mouse works fine even without rooting it.
jafargio said:
Just bought this cable from Amazon
It works just fine with wireless Microsoft Keyboard+Mouse but was not able to make it work with my Lumix Camera and Card Reader. Seems there are problems with Android version 4.0.4
My Xoom is MZ604 WIFI only NOT Rooted. Keyboard and Mouse works fine even without rooting it.
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I think it's the XOOM do not support your camera module(no this module driver).Maybe you can upgrade OS to FIX.This issue is ONLY driver issue.

hdmi tv-out cable

wondering if anyone has used a miniusb to hdmi cable for their touchpad to play on their tv.
I'm asking because I did this on my toshiba thrive and I'm hooked now :S and want to do same with touchpad if possible
I can find some cable/adapter fairly cheap online so if it works, i'd get one
something like this http://www.amazon.com/HDMI-Female-Mini-Male-Adapter/dp/B000TYL27M since I already have a hdmi cable so no need to buy another if an adapter would work
edit: i'm also wondering because a quick search said it wasn't possible but i also see this page that lists product as working with touchpad :S http://www.uzid.com/wholesale-hp-touchpad-hdmi-micro-to-hdmi-lcd-3ft-adapter-cable-cord-link-1.html
What you are looking for is USB MHL since the Touchpad has no HDMI port only micro USB, but the Touchpad does not support this feature.
hm ok thanks , maybe i'll look into those hmdi android dongles i see in marketplace then.
eyeb said:
wondering if anyone has used a miniusb to hdmi cable for their touchpad to play on their tv.
I'm asking because I did this on my toshiba thrive and I'm hooked now :S and want to do same with touchpad if possible
I can find some cable/adapter fairly cheap online so if it works, i'd get one
something like this http://www.amazon.com/HDMI-Female-Mini-Male-Adapter/dp/B000TYL27M since I already have a hdmi cable so no need to buy another if an adapter would work
edit: i'm also wondering because a quick search said it wasn't possible but i also see this page that lists product as working with touchpad :S http://www.uzid.com/wholesale-hp-touchpad-hdmi-micro-to-hdmi-lcd-3ft-adapter-cable-cord-link-1.html
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The USB port on the HP Touchpad is barely USB OTG host compliant to connect USB devices, like keyboard, mouse, flash memory, etc. It is not USB HML capable, meaning there is no circuitry available to route video out the DATA+ / DATA- wires of the USB port.
There is no USB Dongle, or cable, that can do what you want. HP Touchpad does not support USB to HDMI.
ZedZardoz said:
The USB port on the HP Touchpad is barely USB OTG host compliant to connect USB devices, like keyboard, mouse, flash memory, etc. It is not USB HML capable, meaning there is no circuitry available to route video out the DATA+ / DATA- wires of the USB port.
There is no USB Dongle, or cable, that can do what you want. HP Touchpad does not support USB to HDMI.
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I think he means to get an android tv dongle. They are little android devices with HDMI out and usb input, usually one of those 1Ghz A10 processors and 1Gb RAM. Neat little things, but my phone has MHL.
the mk802 is what you're talking about. there are a bunch of new versions comming out all the time. http://rikomagic.co.uk/forum, and http://miniand.com/forum are good places to get support and talk about these new devices.
Too bad we can't have HDMI out, Touchpad would do well as replacement for my media player

[Q] Usb hub + charging + hdmi possible?

Hi I can't find a definitive answer but I think it is no. Anyway does anyone know if it possible to do the following?
Get TV out (HDMI) + usb host working at same time
Get usb host (hub or not) + charging the tablet
Get hdmi out + usb host + charging.
I think our tab works with the media dock for the 7" tab but can usb host be added as well? The dock for the note 2 looks amazing and should really be available for all devices like this.
Cheers
badasschris said:
Get TV out (HDMI) + usb host working at same time
Get usb host (hub or not) + charging the tablet
Get hdmi out + usb host + charging.
Cheers
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I don't know the technical terms behind this but here's the gist of why this won't work: When you are using the HDMI out or the USB OTG it puts the multi purpose connector into a proprietary mode which will I/O a protocol that works with that particular type of device. So when it is in HDMI mode it is using certain data pins to connect with the HDMI pins, and when it is in USB OTG mode it is using some of the same pins to connect to USB data pins.
It can only be in one mode or the other at once, so if you hooked up a hub to a usb OTG connector, or used a USB OTG hub, the jack on the note is going to be in USB OTG mode/protocol, and it will not recognize an HDMI adapter also connected to the hub as an HDMI device that it supports. Only storage devices, HID input devices, and samsung printers are supported on the USB OTG.
Since this is a hardware restriction, I'm 99% sure it cannot be programmed around. I think the same applies to why you cannot charge while using the USB OTG. As far as I know all the HDMI adapters require a usb power source and will somewhat charge the tablet.
Nirvana388 said:
I don't know the technical terms behind this but here's the gist of why this won't work: When you are using the HDMI out or the USB OTG it puts the multi purpose connector into a proprietary mode which will I/O a protocol that works with that particular type of device. So when it is in HDMI mode it is using certain data pins to connect with the HDMI pins, and when it is in USB OTG mode it is using some of the same pins to connect to USB data pins.
It can only be in one mode or the other at once, so if you hooked up a hub to a usb OTG connector, or used a USB OTG hub, the jack on the note is going to be in USB OTG mode/protocol, and it will not recognize an HDMI adapter also connected to the hub as an HDMI device that it supports. Only storage devices, HID input devices, and samsung printers are supported on the USB OTG.
Since this is a hardware restriction, I'm 99% sure it cannot be programmed around. I think the same applies to why you cannot charge while using the USB OTG. As far as I know all the HDMI adapters require a usb power source and will somewhat charge the tablet.
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Thanks for the info just what I was after, it all sounds like a bummer but not too bad. Sounds like I will need root to connect a ps3 controller then.
badasschris said:
Thanks for the info just what I was after, it all sounds like a bummer but not too bad. Sounds like I will need root to connect a ps3 controller then.
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No need to root for ps3 controller use. My sixaxis works fine using the standard usb adapter. You'll only need to root if you want bluetooth connectivity.

[Q] Is it possible to both charge and use usb keyboard through OTG adapter?

I'm planning on buying OTG adapter to use usb keyboard/gamepad etc. But is it possible to both charge GTab 2 10.1 and use some usb device if said OTG adapter has multiple usb ports?
Anyone? Help, please :crying:
I know of no such device that will allow for charging and USB keyboard. You may be able to hook up multiple USB devices but no voltage will be passed back to the tablet.
My personal recommendation is to charge via USB and use a bluetooth keyboard. I also recommend patience with the forums.
Jeruzalem said:
I'm planning on buying OTG adapter to use usb keyboard/gamepad etc. But is it possible to both charge GTab 2 10.1 and use some usb device if said OTG adapter has multiple usb ports?
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This may be one of the needed pieces. I use it to connect a 1TB Seagate potable drive. I have seen some hubs but the reviews are not encouraging.
http://www.amazon.com/StarTech-com-USB2HABMY3-Cable-External-Drive/dp/B003HHK576/ref=pd_ys_sf_s_172282_a1_4_p
Have you considered Bluetooth. My MS keyboard and mouse connect fine as my Logitech tablet specific ones. I imagine there are BT game controllers too.
schneid said:
I imagine there are BT game controllers too.
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PS3 controller comes to mind. I have also used the WII controller to great effect.

How do I get analog video source onto my tablet?

I need to get an analog video source (RCA cable) to display on my tablet, but only at certain times. Samsung states that the Tab A 10.1" supports simultaneous charging and OTG when using an OTG cable. So I plan to get an OTG cable that will split to a USB and female micro USB connector (see link). Then I want to buy a RCA to USB dongle, but I'm not sure if all of them will work. I've heard that only the UTV700 chipset one works.....but I don't know why? Any help here is appreciated. I found this:
https://www.amazon.com/gp/product/B01B5XY8EE/ref=ox_sc_sfl_title_2?ie=UTF8&psc=1&smid=A40NHWEFTZZNI
It has a switch to switch between the micro USB female connector and the USB connectors. I think by using this, I can control when the video source gets through to the tablet. I only need it at certain times. Thanks guys!

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