Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Signal Type | Active (Continuous Tone) |
| Trigger Level | High Level Trigger |
| Sound Pressure | 85dB at 10cm |
| Frequency | 2300Hz ± 300Hz |
| Current Consumption | < 30mA |
| Pin Configuration | 3-Pin (VCC, GND, I/O) |
| Dimensions | 12mm x 12mm x 9mm |
| Compatible Boards | Arduino, ESP32, STM32, Raspberry Pi |
| Mounting Hole Diameter | 3mm |
Anonymous
Mar 31, 2026
Rating: 5/5
Perfect for Arduino alarms
This little buzzer is loud enough for my project alerts. The high-level trigger works exactly as described with my Uno board. Very easy to wire up.
Anonymous
Mar 25, 2026
Rating: 4/5
Solid component
Does exactly what an active buzzer should do. Just apply power to the signal pin and it beeps. Wish it came with header pins pre-soldered.
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable and loud
I've used these in three different prototypes now. They survive breadboarding well and the volume is sufficient even in a noisy room.
Anonymous
Mar 24, 2026
Rating: 5/5
Works flawlessly with ESP32
No issues running this off the 3.3V pin on my ESP32. The tone is stable and doesn't fluctuate with voltage drops. Highly recommended.
Anonymous
Mar 23, 2026
Rating: 4/5
Good value, compact size
Bought a pack of ten for our workshop. They are consistent in volume and pitch. One unit had a slightly loose pin, but the rest were perfect.
Anonymous
Mar 06, 2026
Rating: 5/5
Great for learning electronics
Used this for my final year project to indicate system status. It draws very little current and the sound is clear without being ear-piercing.
Q: Is the volume adjustable on this module?
A: No, the volume is fixed at approximately 85dB. There is no onboard potentiometer for volume control.
Q: Can I use this with a Raspberry Pi GPIO?
A: Yes, but ensure you connect it to a 3.3V pin since the Raspberry Pi GPIO is not 5V tolerant. The module supports 3.3V operation.
Q: Does this come with male header pins included?
A: The module typically comes with the pins separate in the bag to prevent damage during shipping, but they are included for you to solder on.
Q: What is the difference between this active buzzer and a passive one?
A: An active buzzer has an internal oscillator, so it produces a fixed tone when powered. A passive buzzer requires an external square wave signal to generate sound.
Q: Can this module be driven directly by a 5V Arduino pin?
A: Yes, this module is designed for 3.3V to 5V logic levels and can be connected directly to standard Arduino digital pins.
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