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SparkFun聲音探測器
原名
SparkFun Sound Detector
貨號
SEN-12642
特價
361
資料來源：https://www.sparkfun.com/products/12642
The SparkFun Sound Detector is a small and very easy to use audio sensing board with three different outputs. The Sound Detector not only provides an audio output, but also a binary indication of the presence of sound, and an analog representation of its amplitude. The 3 outputs are simultaneous and independent, so you can use as many or as few as you want at once.
The envelope output allows you to easily read amplitude of sound by simply measuring the analog voltage. Gain can be adjusted with a through-hole resistor, to change the threshold of the binary (gate) output pin as well. Check the hookup guide below for more information about setting gain.
Each of the three output signals is present on the .1" pin-out at the edge of the board. They are active simultaneously. If you aren’t using one in your particular application, simply leave that pin disconnected.
Get Started with the SparkFun Sound Detector Guide
Documents:
- Schematic
- Eagle Files
- Datasheet (LMV324)
- Hookup Guide
- GitHub (Design Files)
- Product Video
Videos
在SparkFun聲音探測器是一個小的，非常易於使用的音頻感應板上有三個不同的輸出。聲音檢測器不僅提供了一個音頻輸出，而且聲音的存在的二進制指示和其振幅的模擬表示。 3輸出同時和獨立的，所以，只要你想一次就可以使用盡可能多或盡可能少。
信封輸出讓您可以輕鬆簡單地測量模擬電壓讀出的聲音的振幅。增益可以與通孔的電阻進行調整，以改變二進制（柵極）輸出引腳的閾值，以及。檢查下面的聯播指南，了解有關設定增益的更多信息。
這三個輸出信號是出現在.1“頭在板的邊緣。他們同時有效。如果你沒有在特定的應用程序使用一個，乾脆離開該引腳斷開。
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