If you are traveling and need to use GPS, but maps are loaded on a external card and you have your viewpad charging on lighter outlet.
or (my case) you have some serious amount of text to write and you need the keyboard connected as well as your wall mount charger....
Is there any known way to connect the battery charger and a peripheral as keyboard or usb mass storage device at the same time?
I'm thinking about some surgery to the usb-to-miniusb converter that I use to connect my desktop type keyboard to the viewpad, but don't know what could happen to the usb device or the keyboard. Neither know which of the 5 pins (contacts) of the charger is the active one...
Any suggestions?
Tnx in advance.
anothe question....
Ok... since there is no answer over 24hrs, I'll make another question to make this a little more interesting for you people could help me...
Is there any chance to connect a keyboard (already working) plus a SD card at the same time??
I'm making some fun stuff with a keyboard and making some surgery I could install some kind of "external USB Port" on the keyboard.... but, should it work?? I mean, keyboard and flash memory together, connected to one-single miniUSB port....
Developers.... any suggestion??
Thnx again...
Forgett to say.... on Viewpad7 with FROYO 2.2.1
Another idea
Ok, easy people... That bunch of comments about my topic make s me feel kind dizzy...
Just kidding....
Making some research (on goggle, haha!!), I've found that USB port on a pc have a 5volt-500mA output... So, if that's nominal out and that power could charge the viewpad AND don't turn on smoke any peripheral, Then I just have to connect power out on a wall-mount charger to the 1st pin (wire) of a 5 contact miniUSB, regarding on the power out put on 500mA.
(thanks isIran for your assistance )
now... PLEASE SOMEONE STOP ME IF I'M HAVING SOME IDIOTIC, TABLET BRICKING, IDEA!!!!
Thnx again
Hi,
The Viewpad wall charger have a non standard conector, if you look in the contact part you will see double connection.
In the main charger body you will find the pinout:
Pin 1 & 6 +, pin 5 & 10 -
These pins (6&10) are longer than the data pins to ensure that the power connections mate first and un-mate last.
The wall charger is 2 A and the USB PC port only 0.5A (0.9A for USB3)
For this reason a wall charger change in 2 hours and a PC USB in 15 hours.
A dedicated USB charger should short the 2 data lines together. The device will then not attempt to transmit or receive data, but can draw up to 1.8A
for this reason the device know when it's connected to a computer or to a dedicated charger (like a Garmin GPS)
Probably modifiying a connector (or keyboard) to provide energy and data will work.
Did you try a USB hub?
Less us know the result of your experience.
cheers
You could solve the keyboard problem by using a bluetooth keyboard and you can charge the tab on the USB port at the same time.
ecossais said:
You could solve the keyboard problem by using a bluetooth keyboard and you can charge the tab on the USB port at the same time.
Click to expand...
Click to collapse
Right, this solve one problem, but is much expensive and less fun... Besides, didn't solve the flash drive plus charger issue...
About pins 6 &10... Just noticed that (in over a year never look that closer the charger pin).
I'll try usb hub, but I'm afraid to burn some flash drive or worst...
Thanx for your interest and helpful advice...
Hi!
I need your help!
I want to make a docking station in the car,
to connect the tablet(Huawei IDEOS S7 Slim) as a navigator in the car and the power(and usb-host, and others) was a 10pin connector
You know the pinout in 10-pin connector?
View attachment 1469888
Thanks!
P.S.Sorry for the english, I'm from Russia.
Same idea...
Taifunfly said:
usb-host
You know the pinout in 10-pin connector?
View attachment 1469888
Click to expand...
Click to collapse
I have same idea. So far I find out that S7 slim is not USB OTG capable (means it could be slave but not master in USB connections). Maybe there is the way to use some software to make S7 to act as a host since it have power on USB connector to supply usb flash.
Regarding 10 pin connector I couldn't find any info accept info on docking devices... According to that information: 10 pin connector is used for keyboard etc. Maybe it have digital audio and video out but you need to make some DA converter etc. cause I tested every pin with others and find out that there is no analog signals outputs (for audio).
I think that those information helped (to gett you on the right track) but I also like to hear
some opinion on the subject from experience members...
You have some other thread for docking (it's what 10 pin connector is) so you can read those.
http://forum.xda-developers.com/showthread.php?t=881565
I have the POGO dock but when the tablet is charging the USC C port is dead. Is there a setting or workaround for this or is there any other solution by which I might charge and use the USB port simultaneously? I use the device in the medical field for ultrasound and would like to charge while using the ultrasound transducer otherwise I get something less than 4 hours out of a charge.
Lenny
n4lxp said:
I have the POGO dock but when the tablet is charging the USC C port is dead. Is there a setting or workaround for this or is there any other solution by which I might charge and use the USB port simultaneously? I use the device in the medical field for ultrasound and would like to charge while using the ultrasound transducer otherwise I get something less than 4 hours out of a charge.
Lenny
Click to expand...
Click to collapse
Why don't you use / buy its book cover & use it for a stand + a USB type C hub to charge it while using its USB port?
Really weird that the Pogo Dock mages the USB dead - stupid. But I agree with Darkknight, the solution he proposes should work. Are you fine with that?
Hi,
I have this tablet: http://en.senter.com.cn/products_detail/productId=183.html
It has this type of https://www.graperain.com/ARM-Embedded-MSM8916-System-On-Module/ SOM with MSM8916 CPU. Actual SOM inside the tablet has different marking on it but it looks exactly as the one in the picture. Dimensions are also the same. I googled a little bit and the SOM probably contains PM8916 power management IC. The board that SOM sits on contains ADP1612 boost converter that genereates 5 volts for OTG (at least I think so).
The tablet runs 5.1.1 Android (32 bit) with 3.10.49 kernel.
The problem is the tablet can't be charged while the USB is in OTG mode (I want to connect USB webcam to the tablet and at the same time to charge the tablet). This functionality is called accessory charging adaptor (ACA). I tried to connect OTG cable with 124 kohm resistor and to supply 5 volts for USB webcam externally but this way tablet doesn't enumerate the webcam.
Do you think ACA can be enabled in software? I don't need the tablet to generate 5 V for OTG, I can supply it externally. But I want it to enumerate the webcam and to charge from my external 5 V supply.
I extracted device tree that the tablet uses - http://gaminn.sweb.cz/dt.txt . Do you think it is possible to edit it in order to enable ACA?
Hi guys, looking for some help here. My goal is to use a tablet with a seek thermal USB camera plugged into the charging port. It's going to be mounted in a semi-permanent location and running non stop, so I'll need to keep power to the tablet at all times. Is there a solution for this? Is there a way to plug power into the charging port while also allowing the OTG item (Seek Thermal) to work simultaneously? I've looked at some connectors on Amazon but it's very unclear if they will only Power the OTG item but not charged the tablet or both. I thought about using inductive charging for the tablet, but I'm failing to find any tablet that has an inductive coil built-in.
I'm going to purchase a new tablet for this so I'm open to whatever model works. Right now the Seek Thermal is a micro USB connection but I have a micro USB to USB-C connector just in case the new tablet uses a USB-C connection.
Thanks so much in advance!
@Fit101
Read here.
Thanks @jwoegerbauer, do you know if there's anything pre-made available? Some of the items linked in that post are no longer available. Thx