[ale] USB host mode on android tablet

[Ron Frazier (ALE)]

For a USB - serial converter, I recommend the Trendnet TU-S9, which 
supports all the handshaking signals of the serial port.

I've never used a bluetooth serial converter, but typing that into 
google yields these results:

https://www.google.com/search?num=100&hl=en&site=&source=hp&q=bluetooth+serial+converter&btnG=Search

I've also been using a bluetooth obd ii converter to read data from my 
car's ecu through the odb ii port:

See this thread: [ale] semi ot GOT ODB II Android working here's how - 
was anyone using obd ii automotive diagnostics

and this:

http://www.amazon.com/gp/product/B006MPZ9VC/ -
BAFX Products (TM) - Bluetooth OBD2 scan tool - For check engine light 
and other diagnostics - Android compatible

Note, I DON'T know the security implications of using bluetooth for this 
purpose.

Sincerely,

Ron



On 5/4/2012 12:24 PM, Steven A. DuChene wrote:
> I need more devices than a keyboard. The in-car ECU I need to pull data from can be accessed with a USB to serial convertor. Are there serial to Bluetooth converters as well?
> --
> Steven DuChene
>
>
> -----Original Message-----
>    
>> From: "Ron Frazier (ALE)"<atllinuxenthinfo at techstarship.com>
>> Sent: May 4, 2012 9:14 AM
>> To: Atlanta Linux Enthusiasts<ale at ale.org>
>> Subject: Re: [ale] USB host mode on android tablet
>>
>> If you can't get a USB keyboard to work, you could try a bluetooth
>> keyboard.  I have this bluetooth keyboard / case from Kensington and I
>> like it very much.  Some tablets will support USB host mode out of the
>> box, but many won't.
>>
>> http://www.kensington.com/kensington/us/us/p/1715/K39519US/keyfolio%E2%84%A2-pro-2-universal-keyboard-case-for-10-tablets.aspx
>>
>> Sincerely,
>>
>> Ron
>>
>>
>> On 5/4/2012 12:01 PM, Steven A. DuChene wrote:
>>      
>>> Also I note that plugging a USB keyboard into an Android device does not seem to work. From what little I have read it is because USB host mode is not enabled in early versions of Android. It is possible to somehow either add this functionality via replacement kernel modules or perhaps even rebuild a new/different kernel for one of these devices to enable this? I have looked at some of the dmesg output from one of my el cheap'o tablets and I see some things happening there when I plug in a keyboard but not enough apparently. It looked like the appropriate modules for USB devices were loading so it seems like the hardware is there but not completely functional.
>>> --
>>> Steven DuChene
>>>
>>>
>>> -----Original Message-----
>>>
>>>        
>>>> From: "Steven A. DuChene"<linux-clusters at mindspring.com>
>>>> Sent: May 4, 2012 8:42 AM
>>>> To: Ale at ale.org
>>>> Subject: [ale] hacking an android tablet to single function device
>>>>
>>>> Since Andriod tablets have become so cheap lately (Pandigital for $29.99 plus $4.99 shipping) I would like to see if it is possible to re-purpose one to do server as sort of a single function display device. Does anyone know if it would be possible to reconfig an Android tablet to NOT have a full desktop interface with icons and things and instead have it boot up to the display of a single application?
>>>>
>>>> Also I noticed some of these tablets use a ARM926EJ-S CPU that is supposed to enable the direct execution of 8-bit Java bytecode in hardware and has an MMU on the chip (not always a given for ARM CPUs). Does that mean it would be possible to run a standard Java application without the load of a full JVM? Is all compiled Java code end up being 8-bit bytecode that could be directly run on this CPU?
>>>> --
>>>> Steven DuChene
>>>>
>>>>
>>>>          


-- 

(To whom it may concern.  My email address has changed.  Replying to former
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Ron Frazier

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