If you own a webcam from this list than you can attach it to the AsusWRT routers usb port and capture images from it when motion is detected, like babyroom, garage, courtyard...
It's only for arm devices like RT-AC56U, RT-AC68U, RT-AC87U...
1- Install Debian from here
2- Download videomod script
2b - Download and load UVC Modules
3 - Enter Debian
4 - Update Debian
5 - Install motion
6 - Enable start
7 - Fix start
8 - Change download directory
9 -Exit debian
10 - Rename original script and add it to chrooted services list
11 - Create script to load UVC Modules and motion at startup
Add this lines
Save with CTRL-O / Enter / and exit with CTRL-X
12 - Start motion
13 - Perform a movement in the front of your webcam.
14 - Go to media folder you setup in S99debian script here at point 4 and you'll find pictures captured by webcam and some .swf files witch can be oppened with your internet browser.