資料來源:https://www.sparkfun.com/products/10293
Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty easily by reading the voltage on the output. They can also be used for a very small audio transducer such as a buzzer.
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壓電元件派上用場的時候,你需要檢測振動或敲。您可以使用這些用於水龍頭或通過讀取輸出端的電壓很容易地爆震傳感器。它們也可以用於非常小的音頻換能器,例如一個蜂鳴器。
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