Whistle Detection

Other Hardware Audio
1

Hello everybody!

I've started using Arduino for a few weeks now and i've started a new project. I want to build a system that closes my curtains when it detects a whistle being blown.

As a prototype, I want to start small. The idea is to connect a simple, condensor microphone to a high pass filter then to my Arduino board. That way the only time a signal reaches the Arduino, is when a certain frequency is registered. After this I want to move a stepper motor, and when I whistle again I want to move the stepper motor back.

Is this a feasible plan? What would the microphone, high-pass filter, arduino connection look like?

Thank you for any help I can get!

Diederick

2

Use the Arduino FFT library provided by open music labs and do fft analysis to get whistle frequency. And use that as an input to start the motor.

3

Or up you could use a simple tone decoder chip, much simpler.

. The idea is to connect a simple, condensor microphone to a high pass filter then to my Arduino board. That way the only time a signal reaches the Arduino, is when a certain frequency is registered.

I think you have unrealistic expectations of what a filter can do.