I am trying to host a USB Stick to my Android Device using "USB 2.0 Type A to Mini USB 5-Pin Type B Female / Male Adapter". I have two requirements:
To Trigger USB stick from my android device.
To recieve Data from USB after triggering it.
But Android does not support USB Host. Can anybody tell me what to do in this regard.
Thanks and regards,
Rahul Jaiswal
Android devices do not support USB Host mode.
(Well, a few devices do, but it certainly isn't a standard feature of the Android SDK. There is no simple solution.)
If you have a Nexus One, you may find Sven Killig's experiments interesting.
Related
I want to control a physical device which is connected to my android phone through USB. Here,physical device means any device (like camera,pc etc...) which can be connected to my android device via USB.I want to control this device from my phone.
Is it possible?
Thanks in Advance
Yes you can control the devices but via OTG cable.
see this link
Yes this is possible in some way. If you are able to control an RS232 to USB converter like the PL2303 (the normal ones that you get in the market) then you will be able to do many things. For this you will need a device that supports USB host, then you can check this PL2303 test project which I already tested and can say that works very good. You can use it as the start point for controlling the USB port. This solution works for RS232 compatible devices which you can easily adapt with some electronics using a micro controller.
run adb_win from here http://smart-dog.appspot.com/download/ADB_WIN.zip
and connect to it with tightvnc viewer.
it worked for me
Yes i have this question as well i tried to find the solution,Yes it is possible
do the following...
1 - Android USB drivers must be installed on your desktop
2 - USB Debugging must be enabled on your Android device
3 - Your firewall should authorize adb.exe and BirdieSync.exe
4 - Use the latest version of BirdieSync
If u need more information visit this site it will help you...
http://www.birdiesync.com/my-android-device-cannot-connect-over-usb
I'm a newbie to the Android development world but have some experience with embedded systems.
I'd like to use an Android phone (4.x or higher) to control other devices via its USB port. We want to set the Android device as a USB host, so solutions where other devices play the host role (e.g. Android Open Accessory Development Kit's Arduino) will not meet our goal.
We are currently using Eclipse-SDK for Android development and successfully have compiled/run/debug several apps. However, I have a very naive question. I was wondering if there is a way one could use the USB port of the development host PC as an input to the Android Virtual Device emulator.
I realize that an easier way to debug the USB-host apps we are writing would be by having a real device. However, the price of the new Ice Cream Sandwich devices is somehow far away from our reach and not the ideal way for debugging an application at its early stages.
I appreciate any help you can provide me with.
The Android Open Accessory Dev kit has been backported to 2.3.4 see here http://developer.android.com/guide/topics/usb/adk.html
So install CM7 or earlier (http://www.cyanogenmod.com/) on your HTC desire and you should be good to go!
Look at the example projects for the 2.3 SDK should help get you going in the right direction.
Path to SDK Samples for me was C:\Program Files\Android\android-sdk\samples
If your looking for USB Host Support basically control and talk to another usb device such as mouse, keyboard, usb thumb drive etc the following should help.
Nexus One as USB Host: http://sven.killig.de/android/N1/2.2/usb_host/
USB Host: External USB devices to Android phones?
Official Android SKD UsbDevice Class: http://developer.android.com/reference/android/hardware/usb/UsbDevice.html
You should take a look at this project, its a great reference
https://code.google.com/p/mover-bot/
I am a relatively new Android developer but have gotten pretty familiar with the SDK, using LogCat, etc. However, I'm now working on an app (for a Galaxy Tab 7-plus) that utilizes USB Host mode to talk to an external USB device and I've run into an issue.
My question is: What is an ideal environmental setup that will allow me to take advantage of all of the SDK tools (adb, debug, LogCat, DDMS, and so forth) when I am unable to be connected to my PC via USB (since the external USB device my tablet is talking to is using my tab's only USB port)?
Is there an emulator available somewhere (I've searched in vain) that will allow me to simulate USB Host mode using a USB port on my PC?
Do I need to go to some type of on-board logging app?
Is there some kind of 30-pin splitter available so I can connect to both the external device and my PC? (I'm guessing this is impossible, but I'm a hardware idiot... in addition to a run-of-the-mill idiot).
Thanks in advance for your help!
-KR
As I posted in the comments, If the tablet is rooted you can use AdbWireless (Application on the Market)
This can also be done without rooting. Google/Android officially supports this, as described at the bottom of this page:
http://developer.android.com/guide/topics/usb/index.html
But AdbWireless is easier if you are rooted.
I would like to use Android phones as a way to do some processing and visualization of a sensor that would be attached to the USB port on the phone. The sensor would plug into the micro/mini USB, and then I would need to read the incoming data from the USB serial port.
Is this possible? I have heard of people using Android to steer robots and other applications, but I have never seen Android being used as a host for a USB sensor. I can't seem to find any official documentation on the subject either, but it seems like it would be a very useful tool. Any thoughts, links, or information on this matter? Thanks.
What you're looking for is USB Host support.
There's an open issue in Android's issue tracker here for it:
http://code.google.com/p/android/issues/detail?id=738&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars
and it's actually ranked 7th, in terms of "stars" (think votes, by the people), at 1110 stars. You can log in and star it yourself, both to vote for it, and to receive email updates.
There was also work on a patch back in February, 2010:
http://groups.google.com/group/android-kernel/browse_thread/thread/c8471573d7553331
and there's info on using a USB keyboard here:
http://www.tombom.co.uk/blog/?p=124
Perhaps you can find something for your sensor there?
This is cool =):
http://www.technologyreview.com/biomedicine/25286/?a=fb
Cheers,
Victor
should be possible, look up android.hardware.usb.UsbDevice # http://developer.android.com/reference/android/hardware/usb/UsbDevice.html
This support has been added since Android 3.1.
Look at http://developer.android.com/guide/topics/connectivity/usb/index.html
This guy has modded his Nexus One to work as a USB host and has done several cool things.
He uses a USB keyboard and runs a movie from his USB stick. Then he runs a webcam through the phone and displays it on the computer and even runs an entire desktop-based Linux distro from his phone onto his computer monitor.
Pretty amazing stuff.
http://sven.killig.de/android/N1/2.2/usb_host/
The USB defines two type of equipment 1 usb host 2usb device .A device can only be attached to a host,no host to host or device to device connection.,in the beginning usb hosts were computers to which a usb device is attached.but with increase in popularity of usb interface a number of equipments come as usb host ie you can attach your pendrive and other usb device to it.In the starting mobile phones were manufactured as usb device ie you can attach your phone to usb host only typically a computer.but there also revolution come in now we have phone which can act as host and device when it is working as host we can attatch printer to it and when it work as device it can be attatched to a computer.only high end phone has this support.low end phones are still usb devices.
so we have two options
phone in usb host mode and your senser as usb device(you will need microcontroller that can act as usb device for this purpose-eg pic 18f2550 microcontroller);
your phone as device and your senser circuit as usb host here you will need high end microcontrollers that can act as usb host
in both cases there involves coding at both phone and senser circuit microcontroller
i dont know anything about phone side coding but i think this helps you to get a direction to what to do.
Have a look at You Are Here GPS.
https://play.google.com/store/apps/details?id=com.agbooth.usbgps
What would be the best way to access the USB as a serial port on an Android device (HTC Magic)?
I am thinking about an OBD-II interface. Can I do this on a standard phone or more likely will I need a modified firmware?
According to this post, Matt Porter presented a review of Android at the Embedded Linux Conference Europe. I mention this mostly because of the example used to describe the current state of Android.
"Just one more practical example: You cannot even plug a USB drive to an android system, since /dev/sd* is not an expected device name in their hardcoded hotplug management.
Executive summary: Android is a screwed, hard-coded, non-portable abomination."
I'm sure someone's working on it, but I'm afraid for now you're out of luck unless you're willing to go low-level and edit the OS.
PSFreedom (project to jailbrack Playstation 3) has list of controllers which support usb host mode which then translate to supported Android devices.
My own expirience is that usb host works on HTC Dream/G1 without problems.
For OBD-II I would suggest bluetooth ODB-II dongle which side-stepps problem with usb host adapter.
Depending on the USB chip in your particular phone, it may be possible to rebuild the kernel to support USB Host mode or USB On-The-Go (Host + Gadget modes) instead of the normal USB Gadget mode. I've found some people speculating that it could be possible on the HTC Dream. Assuming you could reconfigure the USB port in Host mode a USB to serial, ODB-II, or CAN should be doable.
From what I can tell Android is Linux of some sort, to have USB device which would apear as serial port, you should write a driver for that device. I don't know much about OBD-II interface but i am guesing they use some sort of USB driver for windows, same is for android, not mentioning the application to handle the driver.
I don't think the current Android devices can act as a USB host only as a USB device when attached to a host. So using the USB port as a serial port is not likely.
Get a hostmode kernel for your device and you can use python for android and the pyserial library to talk to the serial over USB. I did this with Huawei Ideos U8150 (here is the post) for a loopback test.