Hi,
I was wondering can a regular light switch be converted to a smart one, using the following requirements:
- No neutral wire (just one phase that goes to the lamp and from the fuse)
- The Arduino has to be always off, until WAKE event is called using photo-diode, would it wake fast enough ?
My goal then is to have Li-Fi based router, that will convert the web service commands from IP packets to Li-Fi signals, but first it will negotiate with the photo-diode, when it completes, the command will be processed.
I know this is a lot technologies patched together, however if you may answer my switch powering issue I will be more than happy 
.
The full scale of my idea is:
- each room having the Li-Fi, rooms are identified by wi-fi AP SSID
- a device like: socket, water heater, (even fridge 
) and light switch will have own ID flashed in a PIC16f* microcontroller
- a cloud service having lots of clients (android, web, etc) can view the home layout, see current state and interact with the environment
Thanks.
Regards,
Damjan.
