ALLNET 4duino Buzzer Module (Active Buzzer, 3.3-5V, Digital I/O, 3-Pin)

The ALLNET 4duino Buzzer Module (4duino_B27) is an active buzzer module designed for acoustic feedback in microcontroller projects. Compatible with ALLNET 4duino and Arduino platforms, it generates a loud acoustic signal when a high digital signal is applied. The module features a 3-pin interface (VCC, GND, Signal) with standard 2.54mm header pins and includes mounting holes for easy integration.

Advantages

Integrated oscillator simplifies control – no PWM required. Wide operating voltage range (3.3V-5V) ensures compatibility with both 3.3V and 5V logic systems. Low current consumption (<30mA) makes it suitable for battery-powered projects. Compact design with mounting holes allows secure attachment to enclosures or breadboards.

Suitable for

• Acoustic feedback in user interfaces
• Alarm and notification systems
• Simple tone generation for educational projects
• IoT devices requiring audible alerts

Key specifications

• Module Type: Buzzer Module
• Buzzer Type: Active Buzzer
• Compatibility: ALLNET 4duino, Arduino
• Operating Voltage: 3.3V - 5V DC
• Interface: Digital I/O
• Number of Pins: 3
• Pinout: VCC, GND, Signal (S)
• Sound Generation: Integrated Oscillator
• Control Method: High/Low Digital Signal
• Current Consumption: Typically <30mA
• Sound Output: Loud Acoustic Signal
• Application: Acoustic Feedback, Alarms, Notifications, Simple Tones
• Mounting Holes: Yes (2 holes)
• Connector Type: Standard 2.54mm Header Pins
• PCB Color: Blue
• Operating Temperature: -20°C to +70°C

Recommendations

For optimal performance, connect the Signal pin to a digital output pin on your microcontroller. Use a resistor if required by your specific board. This module is ideal for adding simple audio alerts to your projects without complex programming.