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Home / Computer Hardware, Monitors & Peripherals / Sound Sensor, Microphone Noise Decibel Measurement Module with 3p/4p Interface

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 3.3V - 5V DC
Interface Type 3-Pin / 4-Pin Header
Microphone Type Electret Condenser
Output Signal Analog (AO) & Digital (DO)
Sensitivity Adjustment Potentiometer Included
PCB Dimensions 42mm x 12mm x 15mm
Mounting Hole Diameter 3mm
Operating Temperature -10°C to 50°C
Compatible Platforms Arduino, Raspberry Pi, ESP32
Package Weight 5 grams

5 reviews

A

Anonymous

Apr 14, 2026

Rating: 5/5

Great for Arduino projects

Works perfectly with my Uno. Sensitivity is adjustable which is nice for different environments.

A

Anonymous

Apr 07, 2026

Rating: 5/5

Sensitive and responsive

Picks up claps and voice clearly. Digital output threshold is easy to set with the onboard pot.

A

Anonymous

Mar 28, 2026

Rating: 5/5

Perfect for school project

Easy to wire up. Documentation could be better but plenty of online tutorials available.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Works as expected

Had to tweak the potentiometer a bit but once set, it's stable. Fast shipping too.

A

Anonymous

Feb 05, 2026

Rating: 4/5

Good value

Does what it says. Not professional grade dB measurement but good for triggers and basic detection.

5 FAQ

Q: How do I wire the 4-pin interface?

A: Typically VCC, GND, DO, and AO. Please refer to the pinout diagram in the description.

Q: Is there a specific library for this?

A: It is a hardware sensor, standard analogRead functions work without specific libraries.

Q: Is the output analog or digital?

A: It provides both Analog (AO) and Digital (DO) outputs depending on your wiring.

Q: Does this work with 3.3V logic?

A: Yes, it supports 3.3V to 5V input voltage ranges.

Q: Can this measure exact decibels?

A: It detects sound intensity but requires calibration for precise dB readings.

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