i want to make a module that blinks every time a low frequency sound is heard.. i will start exprimenting soon... you may think this is a kind of silly question.. cus is guess its kind of easy.. please reply
Wayne Parham Messages: 18791 Registered: January 2001
Illuminati (33rd Degree)
Check out phase locked loops. You can choose an arbitrary frequency - say 100Hz - and use a one-chip solution that blinks when this frequency is present.