1. Bugstomper2000's Avatar
    I want to be able to plug a webcam into my N4 and an external battery that uses USB, then use the camera on my phone. There is no USB OTG hardware on the N4, so the camera will be powered by the external battery. Now, I could just buy a y-cable off of Amazon, but I want to charge my phone at the same time and have the USB OTG as part of the camera. Here's the diagram I made.
    External Camera Wiring-usb-otg-harness.jpg
    This is just taking the theory of USB OTG and throwing parallel power into the system so that it will work on the N4. Will this work and is there an easier way to do it?
    01-03-2015 12:11 PM
  2. dancing-bass's Avatar
    Believe it or not, the Nexus4 DOES have the hardware for OTG - however the stock software does NOT support it. To get OTG running you'll need to be rooted and run a modified kernel.

    Here's some more info Android Advanced: USB OTG on the Nexus 4 | Android Central

    And a guide on how to make your own OTG cable (just as a reference if you need it) Weekend project: DIY USB on-the-go from old cables | Android Central

    Sounds like a neat project. Be sure to post how it turns out!
    01-03-2015 04:41 PM

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