IoT Power Strip - Modifying Outlet Box

How to modify the Outlet Box for IoT Power Strip.
WARNING:
Some parts of the DIY device described here use mains electricity. In order to build IoT Power Strip you MUST HAVE both knowledge and experience in making things with high voltage electrical parts (mains, 220V - 240V). Do it on your own risk. I will not be responsible for any loss or damage.
Always check twice that the device and any of its parts/wires are NOT connected to mains before touching it! Make sure that your work-in-progress DIY project is not accessible for children, pets and others!
Even if you are comfortable with working on DIY projects which involve mains electrical parts, please refresh your knowledge about electrical safety with the help of some good books/articles, for example:
- Keeping yourself and others safe when designing and making electronic projects (http://www.penguintutor.com/electronics/electrical-safety)
- Work safely with high voltage (http://www.instructables.com/id/Work-safely-with-high-voltage/)

"IoT Power Strip" is a DIY device that allows to turn on/off two pairs of the outlet sockets via Web browser through Wi-Fi.
Hardware details are described here: http://www.thingiverse.com/thing:1211810 . The software part is here: https://github.com/dev-lab/esp-iot-generic-switch and here: https://github.com/dev-lab/arduino-generic-pin .

Видео IoT Power Strip - Modifying Outlet Box канала Taras Greben