USB external webcam application that displays the camera output and takes pictures (or a picture every second in interval mode). Simply attach an OTG (on-the-go) USB adapter to a common webcam* and connect to your smartphone or tablet for an external camera system! Uses include a car rear-view backup camera, building/pipe inspection, an extreme sport camera, or a wearable camera to record all your adventures!

Notes:
KNOWN SUPPORTED WEBCAMS:
Logitech Webcam C250
Microsoft LifeCam VX-5000
Uxcell Mini
...
most commercial webcams are likely to work

*ROOT-SUPERUSER, V4L KERNEL, USB HOST SUPPORT REQUIRED SEE BELOW*
*GALAXY NEXUS AND NEXUS 7 KNOWN SUPPORTED*

*V4L (Video 4 Linux) support is provided by the Android OS (kernel). Every Android device has an OS and may or may not support V4L. If your stock kernel does not support V4L, a V4L enabled kernel can be installed if the device is rooted (see disclaimer and kernel details below).

*Devices must support USB HOST to power the webcam. Most newer devices are enabled.


KERNEL DETAILS:
!!Warning, only qualified users should attempt these steps as it can get complicated.!!
Required tools: See: http://source.android.com/source/initializing.html
FOR GALAXY NEXUS KERNEL:
1. Get the correct kernel:
$ git clone https://android.googlesource.com/kernel/omap.git
2. Add the following to tuna_defconfig (path: ~/omap/arch/arm/configs)
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2_COMMON=y
CONFIG_VIDEO_MEDIA=y
CONFIG_USB_VIDEO_CLASS=y
CONFIG_V4L_USB_DRIVERS=y
CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
2. Comment out the following to the video Kconfig (path: drivers/media/video/Kconfig):
#source "drivers/media/video/omapgfx/Kconfig"
3. Add permission in ueventd.tuna.rc:
666 to /dev/video0
666 to /dev/video1
Check the developer website for Galaxy Nexus V4L enabled kernel updates.

DISCLAIMER
*The developer publishes this app in good faith, but users assume all risk.Developer has no liability and provides no guarantees. This application requires superuser access and a V4L supported kernel. Modifications to manufacturer systems can void a warranty. Not all webcams may be supported. Most major brands are supported. The webcam may need to be plugged in a few seconds before opening the app to initialize.