hi,
i want to do a home automation project using telephone.after a predefined number of rings, the controlling circuitry should be activated automaticall and after that if i press any phone key it should control the corresponding home aplliance.
is there any particular ic which will help to count the number telephone rings. i also want the details about dtmf reciever and transmitter ic.i request your help. pls help me by providing the necessary details.
thanking you,
sanoop
i want to do a home automation project using telephone.after a predefined number of rings, the controlling circuitry should be activated automaticall and after that if i press any phone key it should control the corresponding home aplliance.
is there any particular ic which will help to count the number telephone rings. i also want the details about dtmf reciever and transmitter ic.i request your help. pls help me by providing the necessary details.
thanking you,
sanoop