thanks, wil definately look into details u suggested..
not finalized my project yet..
m planning to make a robo car which wil be interfaced with AVR n controlled via cel phone BT ..
its just tht i want to try some thing different..do suggest if got some better idea..
i got this link for BT based smart home..
All i knw bout BT is how it works..
http://www.avrprojects.info/avr-projects/bluetooth-based-smart-home/