Active Buzzer Module – 3.3-5V

Description

1. Active Buzzer: An active buzzer is a type of electronic buzzer that generates sound when it receives an electrical signal. It is also known as a “self-driven” buzzer because it has an integrated oscillator circuit that produces the sound when powered.
2. Voltage Range: This specific module is designed to operate within a voltage range of 3.3V to 5V, making it suitable for a variety of microcontroller and digital logic circuits.
3. Audible Output: When power is applied within the specified voltage range, the active buzzer generates a continuous audible tone or beep. The frequency of the sound produced depends on the internal oscillator circuit.
4. Built-in Oscillator: The module includes a built-in oscillator circuit, eliminating the need for an external oscillator or signal generator to produce sound.
5. Digital Control: It can be controlled digitally by turning it on or off using a microcontroller or other digital circuitry. Changing the power state determines whether the buzzer is active or silent.
6. Applications: Active Buzzer Modules are commonly used for various applications, including alarms, notifications, timers, and interactive projects that require sound feedback.
7. Polarity: Typically, active buzzers have polarity, so it’s important to connect the positive (VCC) and negative (GND) pins correctly to the power supply.
8. Signal Input: Many of these modules have a signal input pin (often labeled as “S” or “+” and “-“) for connecting to a digital output pin of a microcontroller. Applying a logic high or low to this pin activates or deactivates the buzzer.
9. Compact Size: Active Buzzer Modules are compact and easy to integrate into electronic projects and circuits.
10. Sound Frequency: The specific sound frequency or tone produced by the active buzzer module is determined by its internal oscillator circuit and is typically fixed for a given module.
11. Continuous Sound: Unlike passive buzzers (piezoelectric buzzers), active buzzers produce a continuous sound as long as power is applied.
12. Simple Usage: They are straightforward to use and do not require complex circuitry or additional components for sound generation.
13. Current Consumption: Active buzzer modules generally have low current consumption, making them suitable for battery-powered devices.