DX » Community » Reviews » OPENJUMPER DIY Active Buzzer Alarm Module for Arduino (Works with Official Arduino Boards)
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  • posted bywarleygs on 07/10/2017

    Impression:Boa Qualidade !!!;

    Produto de excelente qualidade e acabamento. O único ponto negativo é a demora de quase 70 dias para entrega.

    Ótimo acabamento

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  • posted byclough42 on 03/05/2013

    This is an amplified piezoelectric speaker. It uses a transistor to amplify a logic-level signal and drive the piezo unit. This is not a buzzer. You must provide a waveform on the S pin to get a tone out of the speaker. There is no built-in tone driver. When you pull the S pin low, the speaker a... Read more

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