2 pin Passive Buzzer Module

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.

Active Buzzer:- buzzer generates the sound itself.  So, you can simply turn it on & off with an MCU pin, just like you turn on & off an LED.

Module Interface Specification (3-wire):

• (S) Signal Pin -> Connect to the PWM pin of the MCU
• (Middle Pin) Not Connected
• (-) GND -> Connect to GND of the MCU

Features:

• Passive Buzzer 10mm
• Requires only 2 pins: Signal and Gnd
• Input Voltage: VCC Not required
• Wide Frequency Range output
• Easy to control
• Set bolt hole, easy to assemble

Country of origin :China

Note: The header pins are alreday soldered to the Module.

1x 2 pin Passive Buzzer Module