This app was mentioned in 9 comments, with an average of 8.78 upvotes
I bought a cheapie borescope for $10 that connects to USB or micro USB. It's not fancy, but it works. Look on eBay, or, if you have time and want it even cheaper, go to AliExpress.
Edit: On android, you should use the apps Canberra Fi or USB Camera. Others may work.
Well that is very odd I just bought one too and had it arrive today. I got a usb A to type c cable and am using the app camera fi. Seems to work really well though.
usb A to C (Benson Approved!):
Camera Fi:
https://play.google.com/store/apps/details?id=com.vaultmicro.camerafi&hl=en
Yeah, I was very happy with it and would recommend it, if you have a male micro USB to female USB cord you can also use your phone as the media interface using this app.
https://play.google.com/store/apps/details?id=com.vaultmicro.camerafi
All of these pictures were taken with my phone as the viewing screen. Which also makes it interesting cause it is 100% portable as well!
+1 for the shot!
Something like this im guessing?
Plugable USB 2.0 Digital Microscope with Flexible Arm Observation Stand for Windows, Mac, Linux (2MP, 250x Magnification) https://www.amazon.com/dp/B00XNYXQHE/ref=cm_sw_r_cp_apa_i_BOs8AbNR9TNR1
Fun-Home Left Angle USB 2.0 Micro Male to USB Female Host OTG Adapter for SamSung i9100 i9300 With Power Features https://www.amazon.com/dp/B013ENUF0Y/ref=cm_sw_r_cp_apa_i_6Ps8Ab9RAYPP4
https://play.google.com/store/apps/details?id=com.vaultmicro.camerafi
The EdgeRouter you linked works fine for the gigabit internet I have at home. The lower model EdgeRouter X won't do gigabit.
If you can spend the money. I'd get the UniFiSwitch 24 port 250 watt, for the POE and integration into a single management UI with the UAP-AC-Lite WAP.
I just finished running Cat6 around my house and these three items help immensely:
http://www.amazon.com/DBPOWER-Waterproof-Borescope-Endoscope-Inspection/dp/B0158DJ20W
http://www.amazon.com/Electric-Fiberglass-Wire-Pull-Rods/dp/B005LW4CFG
https://play.google.com/store/apps/details?id=com.vaultmicro.camerafi
This is the ethernet cable used http://www.monoprice.com/product?c_id=102&cp_id=10234&cs_id=1023404&p_id=8092&seq=1&format=2
edit: added another helpful item
Ah :) then just install https://play.google.com/store/apps/details?id=com.vaultmicro.camerafi&hl=en
it does, I use camerafi for the viewing app
USB OTG cable and this app: https://play.google.com/store/apps/details?id=com.vaultmicro.camerafi&hl=en