Non89
Junior Member level 1
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 mix up the circuit, is the sensor needed???
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. Does this mean no use of microcontroller, TTL only, or what?just no setting software
old walkman..
because i dint learn before the PIC , that why i cant within the PIC in the project