Hi,
Right now i am building a very simple project on which i can connect other devices and then I can set timer for these devices either by keypad or by phone (using DTMF). According to the timer these devices will turn on and off automatically.
The problem with the project is that it's too complex to solder each and every device. Also there is a "current" problem for the devices. Another problem is a connectivity problem. Suppose one device, say a fan, is in one room and the other device is in another room then I have to link both of these devices with my controller with a long wire which is quite cumbersome and unprofessional. That is why i decided to make a system which can make wireless connection in the home. What i can use so that I can get complete wireless coverage for a small/medium size home.

 

Hello,

You could have a look at the X10 home automation system:
http://en.wikipedia.org/wiki/X10_(industry_standard)

Bertus

 

What i can use so that I can get complete wireless coverage for a small/medium size home.

Why not a wireless router? Ethernet over powerlines is another options, which I think is what X10 does.

 

^-Wifi has range that's good enough for all but the most ginormous homes.

 

Power line communication such as X10 is the first that comes to mind.

 

This is what zigbees are for.

http://www.zigbee.org/

 

Hello,

Next to the zigbees are the xbees:
http://en.wikipedia.org/wiki/Zigbee
http://en.wikipedia.org/wiki/Xbee

Bertus