raspberry pi 3 $35
rpi camera $25
rpi display $80
rpi cables $10
PUREX Technology 7" to 8.5" Tablet Desk mount/clamp $25
battery pack $50
The raspberry pi is in a peq battery box with the camera mounted to it (camera is upside down)
https://goo.gl/photos/XfDuV7XPGUicP7i78
How it works so far:
get an sd card with a fresh install of raspbian
run sudo raspi-config enable camera
reboot it
from the desktop open a terminal and run raspivid -o video.h264 -vf -hf -p -f -t 0
hit ctrl c when you want to stop the video
short video showing what it looks like
https://goo.gl/photos/9NKPMiVGehhf29Wv6