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post #1 of 6 (permalink) Old 07-08-2019, 10:27 AM - Thread Starter
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USB full size keyboards w/smartphones?

I read rumor that it's possible to use USB keyboards w/smartphones (I'm guessing w/an appropriate USB adapter). Is it true?
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post #2 of 6 (permalink) Old 07-08-2019, 10:30 AM
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It is possible. You would need a USB OTG adapter for older android devices, or a USB-C to USB adapter for newer androids.

Looks something like this



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post #3 of 6 (permalink) Old 07-09-2019, 03:54 PM - Thread Starter
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What about using the USB OTG port as a video output? Is there such a thing? Can you connect a USB hub to the USB OTG port and have a keyboard, mouse and video hook up to a smartphone?
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post #4 of 6 (permalink) Old 07-09-2019, 04:02 PM
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There is something similar available on many USB-C phones, but as far as I know only a select few micro-usb devices supported video out.

Here is a Samsung MHL adapter that allows a few compatible devices to output to HDMI. Worked with my first gen Galaxy Tab S but one would need to use a bluetooth keyboard and mouse with it. https://www.amazon.com/Genuine-Samsu.../dp/B00NFZ2JDI



Conversely there are USB-C hubs that allow video out and up to 4 usb devices to connect to a single cell phone. I have this one - Hootoo Hub, which even has an SD card reader than my cell phone can pull pictures and files from.



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post #5 of 6 (permalink) Old 07-09-2019, 04:02 PM
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Quote: Originally Posted by 8051 View Post
What about using the USB OTG port as a video output? Is there such a thing? Can you connect a USB hub to the USB OTG port and have a keyboard, mouse and video hook up to a smartphone?
Yes some phones support USB-C hubs. And some support video over USB-C. You can also cast your phone to a display wirelessly. And or use a bluetooth keyboard and mouse.

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post #6 of 6 (permalink) Old 07-09-2019, 09:42 PM - Thread Starter
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So the android OS automatically picks up USB mice+keyboards? How does the android OS know what to do w/video output over USB 3.0 OTG as far as detecting a panel and its characteristics (resolution, refresh rate) over a USB 3.0 to HDMI adapter? I notice they do have USB panels now, but how would you get the drivers for them on a smartphone?
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