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active buzzer module
Active buzzer module with built-in oscillator that produces sound when powered. Easy to use with Arduino and ESP32 for alarms and alert projects.
Product Description
The Active Buzzer Module is a simple and reliable sound output device used to generate an audible beep or alarm when powered. Unlike a passive buzzer, this module has a built-in oscillator, allowing it to produce sound by applying a DC voltage—no external signal generation is required.
It can be directly controlled using a microcontroller GPIO pin such as Arduino, ESP32, ESP8266, Raspberry Pi, or STM32. The module typically operates at 3.3V to 5V, making it ideal for low-power embedded applications. Its compact size and easy interface make it perfect for alert systems and indicator applications.
Common uses include alarm systems, notification alerts, timers, security systems, robotics, and educational projects.

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- Working current: matching for 30 mA, matching the communication for 8 mA.
- Dormancy current: no dormancy.
- Used for a GPS navigation system, water, and electricity gas meter reading system.
- With the computer and Bluetooth adapter, PDA, seamless connection equipment.
- Bluetooth module HC-08 Master and slave Two in one module.
- Use the CSR mainstream Bluetooth chip, Bluetooth V2.0 protocol standards.
- Potter default rate of 9600, the user can be set up.
- Bluetooth protocol: Bluetooth Specification v2.0+EDR
- Speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps.
- Security: Authentication and encryption.
- Profiles: Bluetooth serial port.

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