i am looking for a dtmf based home automation ppt....the main problem i am facing is most of the sites are giving information about the gsm based project in which one has to send a message and then the apllaince is controlled whereas i need information regarding the simple dtmf based home appliance control...whcih is connected through relays and wire..

(16-10-2012, 12:37 PM)Guest Wrote: i am looking for a dtmf based home automation ppt....the main problem i am facing is most of the sites are giving information about the gsm based project in which one has to send a message and then the apllaince is controlled whereas i need information regarding the simple dtmf based home appliance control...whcih is connected through relays and wire..

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i m looking dtmf based secuirity system pdf only in 30 page