{"product_id":"ad47071","title":"KY-006 Passive Buzzer Alarm Sensor Module - (AD47071)","description":"\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eActive buzzers, sometimes called sounders, are devices that generate a sound of a specific and fixed frequency when connected to voltage. An active buzzer incorporates a simple oscillator, so it only needs current to be supplied to the device to emit sound. In contrast, passive buzzers need to receive a wave of the frequency. By internally incorporating the necessary electronics to make the speaker vibrate, an active buzzer is very easy to connect and control. In addition, they do not burden the processor as it does not have to generate the electrical wave that will be converted into sound. On the other hand, they have the disadvantage that we cannot vary the tone of the emitted sound, so we cannot create melodies, which we can do with passive buzzers.\u003c\/p\u003e\n\u003cp\u003eDespite the complexity of providing and controlling the electrical signal ourselves, passive buzzers and speakers have the advantage that we can vary the emitted tone by modifying the signal we apply to the speaker, which allows us to generate melodies.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.luisllamas.es\/reproducir-sonidos-arduino-buzzer-pasivo-altavoz\/\" target=\"_blank\" title=\"Enlace de referencia\" rel=\"noopener\"\u003e\u003cstrong\u003eReference link\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"MicroJPM","offers":[{"title":"Default Title","offer_id":48035684024420,"sku":"AD47071","price":1.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0699\/1344\/4452\/files\/AD47071uJPM.jpg?v=1773035126","url":"https:\/\/www.microjpm.store\/en\/products\/ad47071","provider":"MicroJPM","version":"1.0","type":"link"}