I'm looking for one of two options:
1) A wireless charging receiver (USB Type C) that also has a female USB type c to allow me to plug in the adapter for headphones, or a charging cable for when there's no wireless charging device nearby.
2) A small and portable splitter dongle so that the wireless charging receiver can be installed as well as an adapter for headphones, or a charging cable for when there's no wireless charging device nearby.
Anyone see anything like this around? I know there's a similar thread asking for a splitter (https://forum.xda-developers.com/pixel-2-xl/accessories/usb-c-splitter-charging-t3723795), but everything in that thread is too large for me to carry around all the time in my pocket.
I understand this possibly violates USB type C spec since it's essentially allowing two sources of power, but I'm never going to plug in a charging cable while it's sitting on a wireless charger.
Related
Just bought something interesting, its an adapter that plugs into the car cigarette lighter and has a usb input on the other side, allowing you to charge up anything that needs a usb for charging, mobiles, ipod, even any pc accessories that use usb (mini fridges, fans). Only cost me a pound from poundland! Just thought I'd let people know as it can be quite handy!
plenty of people have modded the original XOOM docks for USB host, such as here.. and here...
i also dissected the standard and speaker docks this past week, just wanted to share my observations:
standard dock:
- uses a regular charger and just passes through the ~12v to the dock charging pins
- the micro USB connection uses 200k ohms between the ID pin and ground to signal the tablet that it's in a dock
- the audio adapter circuitry (which provides the line-out) connects via the micro USB port and is powered completely via that port (not via the external charger connection)
speaker dock:
- uses a separate charger that comes with the dock, rated at 19v and 1.58 amps. the extra power is likely needed to drive the amp for the speakers
- the internal circuitry steps the voltage down only to ~13.3 volts for the tablet charging pins. interesting that they didn't need to be more precise, i guess the tablet's own internal regulators can accept a bit of a range (not just 12v)
- the micro USB ID pin to ground connection is at 200k ohms just like in the standard dock
- the audio adapter is connected via the micro USB just like in the standard dock.
- the HDMI port is completely a pass-through to the external plug on the dock, it provides no functionality to the dock circuitry
i converted the standard dock's microUSB connector to a USB OTG cable for a carputer project. of course by doing this i lost the audio adapter functionality. so i then tried to convert the audio adapter into a regular USB accessory and hook it up via the OTG cable and a powered hub (to enable me to get USB host AND still use the audio adapter). this didn't work and i'm really not sure why. it just wasn't seen at all (nothing new in the dmesg output). i at least expected to see an unrecognized accessory from dmesg if nothing else.
First, the Nexus wireless charger works fine with its own AC adapter, and also in my car with a USB car charger. Kill-a-watt shows a 6-watt draw, and the "Stay awake while charging" setting is ignored.
But the cable is short and very stiff, so I tried 4 different standard 6' cables and none of them will charge. So is the wireless stock USB cable proprietary?
I noticed many posts about modifying a standard USB cable for charging, but some are misleading as to the purpose. If you plug a modified/proprietary cable in your computer for data transfer are you at risk of shorting the motherboard?
I have a cable which plugs into my charging port which then has a usb slot on the end. I want to watch films on my tablet which I can now do but I also need to be able to charge the tablet at the same time. Is there some kind of double socket I can plug into the charger point that I can then use to plug the charger and my existing usb cable into use both at the same time? What would this be called, I've tried searching splitters and adapters but this only seems to come up with car chargers which is not what I need.
Thanks!
I did a lot of searching of the internet in general. I found several posts that asked this basic question about PC peripherals, but nothing that addressed this specific use case.
The basic question, I want a split USB cable to charge from one source, but get data from another source, and combine those to go into my phone.
My use case...
I just bought a new car that has Android Auto. Android Auto, as I'm sure most of you know, requires plugging the phone in via USB to a USB port on the car.
Granted, this port also does provide charging, BUT...
I already own a Qualcomm "QuickCharge" type car charger that plugs into the 12 volt accessory outlet (cigarette lighter socket). This is a better charger than the car's USB port provides.
So I'd like to be able to charge from my own QuickCharge charger, but still plug in to the car USB port to use Android Auto.
I know that there are USB cables for PC accessories that provide an extra "A" plug for extra power, but the intended use of those is that both sources are still plugged into the same computer, so the USB ports share a common power source.
My concern with this is that the power source from the car's USB port for Android Auto and the car charger accessory I have are separate power sources. Will one short out the other, or short out my phone? I'd think it would need to be a special cable that somehow isolates the power lines from side to the other.
Thank you!