A
Anonymous
Mar 26, 2026
Rating: 5/5
Perfect alarm sensor
Using this for a door alert system. Loud enough and reliable.
Description
Active/Passive Buzzer Module High/Low Level Trigger Buzzer Control Board Sound Sensor for Smart Cars
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Trigger Signal | High/Low Level Selectable |
| Buzzer Type | Active & Passive Support |
| Interface | 3-Pin PH2.0 Connector |
| PCB Dimensions | 32mm x 14mm x 5mm |
| Net Weight | 3.5 grams |
| Current Consumption | < 30mA @ 5V |
| Sound Output | 85dB ± 3dB at 10cm |
| Board Material | FR-4 Fiberglass |
| Compatibility | Arduino, ESP32, Raspberry Pi |
5 reviews
A
Anonymous
Mar 14, 2026
Rating: 5/5
Fast shipping
Arrived quickly and well packaged. Tested and working.
A
Anonymous
Mar 09, 2026
Rating: 4/5
Solid build quality
Good component for the price. Pins are a bit tight but manageable.
A
Anonymous
Jan 30, 2026
Rating: 5/5
Great for Arduino Projects
This module works perfectly with my Uno. The high-level trigger is easy to configure.
A
Anonymous
Jan 20, 2026
Rating: 3/5
Learning curve
Had trouble distinguishing active vs passive modes at first. Documentation helped.
5 FAQ
Q: Can I use this outdoors?
A: The board is not waterproof. We recommend using it indoors or in a protected enclosure.
Q: Does this work with 3.3V logic?
A: Yes, the module supports operating voltages between 3.3V and 5V DC.
Q: What is the difference between active and passive here?
A: Active buzzers have an internal oscillator, passive ones require an external square wave signal.
Q: What connector type is used?
A: It uses a standard 3-Pin PH2.0 connector compatible with most sensor modules.
Q: Is a library available for Arduino?
A: Standard digital write functions work. No specific library is required for basic operation.
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