can someone tell me how can i remove charging function from a combo usb charger/data cable.
i think it should be enough isolating one or two of the 4 pins on the usb side ? os is it ?
the cable shall only work for sync.
thx
Decebal
decebal said:
can someone tell me how can i remove charging function from a combo usb charger/data cable.
i think it should be enough isolating one or two of the 4 pins on the usb side ? os is it ?
the cable shall only work for sync.
thx
Decebal
Click to expand...
Click to collapse
quite easy to cut some wires for charging, see http://www.xda-developers.com/connectors/
Related
Hi, I have small problem with my universal charger. I tried to use another which is auto charger from 0.1A to 1A (standard USB), i try to use normal USB cable with mini usb end. And it is not working, when i used the same cable with computer it is working and charging.
Maybe someone have a mini usb universal connector scheme, how to connect (+5V and -5V) to charge, maybe I have mised something... how many A I need to put on it 1A, 500mA, 550mA ... ???
Thanks ..... Waiting ..... )))
Not sure if it's related, but if you try and use a standard USB cable with one of those cigarette lighter to USB power things it doesn't work. I had to connect pin 4 and 5 of the mini USB together to get it to charge my Exec.
Cheers,
Steve.
Which one is 4 and 5 ??? It is + or - Any scheme ???
Joning 4 and 5 is ok. Thanks ! Topic is closed.
Glad it worked.
Cheers,
Steve.
StevePritchard said:
Not sure if it's related, but if you try and use a standard USB cable with one of those cigarette lighter to USB power things it doesn't work. I had to connect pin 4 and 5 of the mini USB together to get it to charge my Exec.
Click to expand...
Click to collapse
I've tried this with the Proporta CL->USB plug and found that if you plug the USB cable in with the Universal switched off, it will start to charge after 10 seconds, I can then switch my Universal on and it will still be externally powered.
Took a few weeks before I worked out the trick of switching it off and waiting for the orange charging light to come on!
Hi I'd like to know whats the USB pin layout on the O2 Atom as my mini USB plug fell off and I'm trying to solder it back to gather.
So far i manage to get it charging again but I cant get data through it.
Also I wonder if anyone can tell me how to make a USB charging cable so that i can plug it into the PC and charge without activesync(without using WM5storage, just plug and charge) or I can charge via car charger(I know this can be done with a special adaptor but I'd like to make my own)
Help is very much appreciated Thx.
well i suppose that no one really know about it so if possible for those who already have thier Atoms opened up, take a high ress pic of the USB plug showing the pins and post it for me.
thx
akromatic said:
Hi I'd like to know whats the USB pin layout on the O2 Atom as my mini USB plug fell off and I'm trying to solder it back to gather.
So far i manage to get it charging again but I cant get data through it.
Also I wonder if anyone can tell me how to make a USB charging cable so that i can plug it into the PC and charge without activesync(without using WM5storage, just plug and charge) or I can charge via car charger(I know this can be done with a special adaptor but I'd like to make my own)
Help is very much appreciated Thx.
Click to expand...
Click to collapse
Switch off the device (remove battery) and use PC to charge , thats the only way
udayrulz said:
Switch off the device (remove battery) and use PC to charge , thats the only way
Click to expand...
Click to collapse
actually i have a cable(which came with a universal battery pack) that allows me to do what i want but its in a bad shape hence I'd like to make another.
usb is pretty much usb htc's carry audio too but people report that normal miniusb in 1 end and usb in the other works just fine
and any device connected to usb's 5volt and ground get power even if the pc dont see it as a usb device it still provide 5volt and 0.5amps to them
thats how usb cup wamers and plastic dogs humping the usb port works
See here @ Wikipedia for details on pin-outs
Hi,
I made my own usb otg adapter from a plain usb a to micro b adapter. You have to connect pin 4 /which is not connected/ to ground to fire up host mode.
Edit: It is not easy to dismantle a usb connector or adapter and it requires soldering. So I guess anybody with the necessary skills will find the pin on his own. I will not post photos because my solution is far from being pretty.
For everybody else: the nokia USB OTG cable is wired the same way so it is very likely that it will work. (on Hungarian forums I saw references that it works, but I can not guaratee it.)
Tommorow I will go buy one and report.
USB Host mode will allow to connect USB pendrive, mouse, keyboard etc. to the SGS II.
Sent from my GT-I9100 using XDA App
richyy74 said:
Hi,
I made my own usb otg adapter from a plain usb a to micro b adapter. You have to connect pin 4 /which is not connected/ to ground to fire up host mode.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
this is very useful for people like me who knows how to solder things, but for the people who have absolutly no Idea what you are talking about, you should add more details/pictures to the OP so the people who doesen't know much about electronics know what you are talking about, and what benefits it brings for them.
I myself will probably make one or more, so I don't have to always take my USB OTG with me all the time.
kaukassus said:
this is very useful for people like me who knows how to solder things, but for the people who have absolutly no Idea what you are talking about, you should add more details/pictures to the OP so the people who doesen't know much about electronics know what you are talking about, and what benefits it brings for them.
I myself will probably make one or more, so I don't have to always take my USB OTG with me all the time.
Click to expand...
Click to collapse
May be you dint know about this thread
http://forum.xda-developers.com/showthread.php?t=1092493
This was explained with pics a long time ago
Yeah sorry. I never saw that. Thanks.
richyy74 said:
Yeah sorry. I never saw that. Thanks.
Click to expand...
Click to collapse
Why be sorry. This forum is to help each other out.
OTG Cable USB (B) to Micro USB (A) Powered with AAA batteries
As one knows, Samsung has promised a HMI Cable
You noticed it is not only a cable but a box out of which you may plug in an extra power supply.
The obvious reason is if the passive monitor does not furnish 5V, the phone will rapidly be out of power.
Now you know that to obtain video rather than anything less, Pin 4 (sense) and 5 (Ground) of micro USB (male A) must be connected with a 365K resistance.
I suppose the dock Samsung is selling for I9100 (yes, I have it) is grounded at 1000K as it provides audio with remote, and yes, the dock provides power supply via extra micro USB as well.
I come to my point: If I want to access any USB data On the Go, I need a cable OTG with 2 ports: USB 2.0/3.0 (female, B sided) to a micro USB (male, A sided, grounded but with no resistance = 0K). Many of them exist on the market out there.
But it is quite impossible to use because of lack of power supply in the passive device (let’s say a handy 1T HDD usually powered via Host connexion !
Would it be possible to insert some sort of receptacle for AAA battery in the middle of such a cable to provide for power while you are for a long time out of access to an electric plug ? Does such a cable exist somewhere to buy ? What would be the sheme to mount this ? HELP !
Instead of shorting pin 4 and 5 from within the cable head, would it also be viable to short them from within the device itself? Say if I disassembled the phone to access the back of the female usb micro connector and soldered the pins. Would there be any damage caused if the permanently shorted pins 4 and 5 (within the device) is connected to a charging adapter/PC?
hi folks,
i would to like to build a micro usb hub.
e.g. 1 male connector and 2 female connector.
does anybody have experience in micro usb to stabilize the voltage and current?
thanx
KindsKoPP said:
hi folks,
i would to like to build a micro usb hub.
e.g. 1 male connector and 2 female connector.
does anybody have experience in micro usb to stabilize the voltage and current?
thanx
Click to expand...
Click to collapse
That would be interesting to see, I think your gonna need drivers for that as well because your gonna need a switch to cycle back and forth on what connector your using, and thats gonna be hard to do from scratch. I was contemplating doing something similar to that but wound up at a dead end. If you figure it out let me know.
it won´t need a driver. i want to build as a host hub. but the current is too low i think, so it is difficult to stabilizise the current,,
mbm262 said:
That would be interesting to see, I think your gonna need drivers for that as well because your gonna need a switch to cycle back and forth on what connector your using, and thats gonna be hard to do from scratch. I was contemplating doing something similar to that but wound up at a dead end. If you figure it out let me know.
Click to expand...
Click to collapse
It's not a question of stabilizing the current.
It's supposed to be 5 volts throughout the USB spec.
If you are using a cell phone as the host, that already produces regulated 5 volts through a charge pump.
The amount of current out of a cell phone is maybe around 100 mA.
That's what you have to work with.
If it's not sufficient for what you want then you need an external power source, not a regulator.
Hubs can be power hogs.
The spec says that a hub can take up to 100 mA all by itself.
To make a micro USB you can either take an existing hub and change the connectors.
Of course since the PCB pattern will not match up you'd have to wire the connectors in discreetly.
If you really wanted to make a real job out of this, buy a hub IC for $3,
lay out a PCB, slap on a 24 MHz crystal and connectors.
???
the idea is to build an mobile hub for tablets or smartphones for plugin external devices like sd card reader or usb stick and
mouse and keybord. hub will stick in a phone and plug in the external devices. i already had tried with a keyboard and mouse with standard usb and it works. i had already build some devices with micro usb connector. so i would like to use all devices at the same time and outdoor. i try to solve the idea without a lot of adapter..
if the usb give all devices 5v and 100mA at the same time, that would be great, without an additional IC power supplier..
thats all
i found out thats not possible to use more than 2 gadgets at the same time cause of the voltage without an external power supplier. keyboard and mice work at the same time but i f u want to plug in a 3rd gadget then wont work. 1 solution could be a mobile battery with 5v connecting with the hub. or make a built in battery in the hub..
@ renate. maybe u have an suggestion?
I have a jig for measuring current consumed by USB peripherals: http://forum.xda-developers.com/showpost.php?p=30668417&postcount=26
I use USB with only low power things like a keyboard or else
with a powered hub (also back-powering the Android).
The second option is more like a docking station.
KindsKoPP said:
hi folks,
i would to like to build a micro usb hub.
e.g. 1 male connector and 2 female connector.
does anybody have experience in micro usb to stabilize the voltage and current?
thanx
Click to expand...
Click to collapse
The 2 female connectors don't make much sense i think, because:
I can't think of any device you would like to connect with your phone as host that has a µusb connector..? You would need 2 additional OTG-cables in almost all cases
You would need OTG capability for security reasons: Imagine you hub is pluggend in you phone and you connect you computer to the hub too -> Data crash + 2 power sources in parallel -> risk of damage
I would use a normal tiny usb hub and only change the cable
u did not read my post above attentively or?
quote:
i had already build some devices with micro usb connector. so i would like to use all devices at the same time and outdoor. i try to solve the idea without a lot of adapter..
and the gadget are already automatically OTG. I already thought all about that before!
-schumi- said:
The 2 female connectors don't make much sense i think, because:
I can't think of any device you would like to connect with your phone as host that has a µusb connector..? You would need 2 additional OTG-cables in almost all cases
You would need OTG capability for security reasons: Imagine you hub is pluggend in you phone and you connect you computer to the hub too -> Data crash + 2 power sources in parallel -> risk of damage
I would use a normal tiny usb hub and only change the cable
Click to expand...
Click to collapse
Hello,
I've tried to find a clear, straight answer online and while I have found info regarding the USB-C standard, I can't find an answer to my question.
I use a mirco usb plug to charge both my current mobile phone and my android tablet.
Does the smaller port in the OnePlus Two use the same sized micro-usb port for charging? I understand that the USB-C port is the larger port on the other end of the cable. Maybe I am wrong about that.
Right now I have several micro usb chargers that I use to charge my phone and my tablet, and I'd like to know if they will be able to charge a OnePlus Two. I don't mind if the charging is slower, but I'd just like to know if it will fit and charge.
Thanks!
No in my sense,as far as my knowlege goes, USB-Type C is altogether a different technology,so you will need a special adapter for OTG too..
Azharkanorwala said:
No in my sense,as far as my knowlege goes, USB-Type C is altogether a different technology,so you will need a special adapter for OTG too..
Click to expand...
Click to collapse
That's what I thought. Thanks!
Vincent Vegas said:
Hello,
I've tried to find a clear, straight answer online and while I have found info regarding the USB-C standard, I can't find an answer to my question.
I use a mirco usb plug to charge both my current mobile phone and my android tablet.
Does the smaller port in the OnePlus Two use the same sized micro-usb port for charging? I understand that the USB-C port is the larger port on the other end of the cable. Maybe I am wrong about that.
Right now I have several micro usb chargers that I use to charge my phone and my tablet, and I'd like to know if they will be able to charge a OnePlus Two. I don't mind if the charging is slower, but I'd just like to know if it will fit and charge.
Thanks!
Click to expand...
Click to collapse
No.....a big No....the port they are using is nothing more than a new plug on the phone side of the cord. The other end of the cable will plug into all your old USB ports. So you will need to use the OP2 cable but the end that does not plug into the phone will plug into any current USB port.
They did not include any of the good things that come with USB C, they just put the USB C plug in the phone and on one end of the cable.
bp328i said:
No.....a big No....the port they are using is nothing more than a new plug on the phone side of the cord. The other end of the cable will plug into all your old USB ports. So you will need to use the OP2 cable but the end that does not plug into the phone will plug into any current USB port.
They did not include any of the good things that come with USB C, they just put the USB C plug in the phone and on one end of the cable.
Click to expand...
Click to collapse
Thanks, friend. That's clear. This is a drag. Right now I have several charging cables that power all my stuff. Now if I get the OP2, I'll need two cables for home and two for the office. That's a negative in my book
Thanks!
Vincent Vegas said:
Thanks, friend. That's clear. This is a drag. Right now I have several charging cables that power all my stuff. Now if I get the OP2, I'll need two cables for home and two for the office. That's a negative in my book
Thanks!
Click to expand...
Click to collapse
Based on the release video they said an adapter would be available older USB cables so that might be an option for you.
Good to know. If the adapter is small and inexpensive, that would help a lot! Thanks!
Vincent Vegas said:
Good to know. If the adapter is small and inexpensive, that would help a lot! Thanks!
Click to expand...
Click to collapse
You can find them on eBay:
http://www.ebay.com.sg/itm/USB-3-1-...088?pt=LH_DefaultDomain_0&hash=item2354402058
MasK said:
You can find them on eBay:
http://www.ebay.com.sg/itm/USB-3-1-...088?pt=LH_DefaultDomain_0&hash=item2354402058
Click to expand...
Click to collapse
Thanks! Very simple and affordable!