Whistle Sesnsor Help

Other Hardware Sensors
1

Hi,

I am trying to create a whistle sensor. I have a codenser mic and ic741 op amp. How to connect the mic to the ic741 and then to the analog Input of Arduino? thanks

I have tried using the schematic attached, replacing the ic4017 with arduino analog input, but still no luck.

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2

You need to amplify the output of the mic to something in the range of the arduino analog input.

If you want to sample the signal, you also need to change the base level of the sound waveform to something like +2.5V so that you can sample the actual sound signal +/- 1 V from that using the analog input.

3

Try these instructions http://www.instructables.com/id/Arduino-Audio-Input/

4

The CD4017 pin 14 is a digital signal 'clock'. So if that works then a digital Arduino input should work.