Passive Buzzer Module with Low-Level Trigger Input – 5V Compatible Sound Element

Description

Features:

• Passive Buzzer 10mm
• Input Voltage 3.3 ~ 5V
• Wide Frequency Range output
• Easy to control
• Set bolt hole, easy to assemble

Passive Buzzer produces sound of a wide range of frequencies. A passive buzzer does not have a built-in oscillator, so it needs an AC audio signal to produce sound. We can use the PWM (Pulse Width Modulation) in the MCU instead of the AC signal. The sound Frequencies changes based on the input signal frequency to the buzzer.

Passive Buzzer:- Device or speaker, you have to send it an AC “sound signal” and you can control the sound.The MCU needs to generate the “tone”. With enough hardware & software you could make it play music. etc.   The only downside (besides a bit of extra programming) is that it takes processor-time to generate the sound.

Module Interface Specification (3-wire):

• (+) External 3.3V-5V voltage (can be directly connected with the 5v and 3.3v MCU
• (–) External GND
• (IO) Microcontroller PWM pin

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