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i want to make a doorbell , after pressing 3 time or 5sec after without responce, another recorder circuit will work for record the visitor voice.... so how can i...

now i want to make a doorbell , after pressing 3 time or 5sec without responce, the recorder will work for record the visitor voice.... so how can i mix...

recorder just need to record the visitor voice.... or maybe you can give me some addition idea, because i feel only record the voice is simple .....

my suggest to my lecturer a doorbell with counter which can count calculate the number of time of bell been pressed, but its doesn't mean the exactly the number of...

hmm... any idea about doorbell series ????

have any project are NOT needed to setting program like PIC , etc to suggest me??