With it’s 3 outputs, the board itself is a lot more flexible. To explore that flexibility, read on.
Looking Closer
Three Outputs?
The Sound Detector has 3 separate outputs. It’s easiest to see what each is doing with a graph. The following
illustrates how the sound detector responds to a series of sound pulses.
Sample Sound Detector Output
This shows the output voltages over time.
The dark green trace is the audio output of the sound detector. The audio voltage directly from the
microphone is found at this output.
The light green trace is the envelope output. This analog voltage traces the amplitude of the sound. Of
particular interest, notice that the third pulse gets noticeably louder as it goes.
