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SparkFun聲音檢測器（帶標題）
原名
SparkFun Sound Detector (with Headers)
貨號
SEN-14262
特價
394
資料來源：https://www.sparkfun.com/products/14262
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 three 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 pre-soldered 0.1" header 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
- Hookup Guide
- Datasheet (LMV324)
- GitHub
Videos
SparkFun聲音檢測器是一個小型，非常易於使用的音頻傳感板，具有三個不同的輸出。聲音檢測器不僅提供音頻輸出，而且還提供聲音的存在和其幅度的模擬表示的二進制指示。三個輸出是同時和獨立的，所以您可以一次使用盡可能少的數量。
信封輸出允許您通過簡單測量模擬電壓來輕鬆讀取聲音幅度。增益可通過通孔電阻進行調整，以改變二進制（門極）輸出引腳的門限。有關設置增益的更多信息，請查看下面的連接指南。
三個輸出信號中的每一個都存在於板上邊緣的預焊0.1“插頭上，它們同時處於活動狀態，如果您沒有在特定應用中使用，則只需將該引腳斷開。
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