Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	3.3V - 5V DC
Output Signal	Digital Switching Output (0 and 1)
Sensitivity Adjustment	Adjustable via Potentiometer
Detection Distance	Approx. 0-5 meters (depends on sound intensity)
Comparator Chip	LM393
Microphone Type	Electret Condenser Microphone
PCB Dimensions	32mm x 14mm x 8mm
Mounting Hole Diameter	3mm
Compatible Platforms	Arduino, Raspberry Pi, STM32, ESP8266
Application Scenarios	Sound Control Lights, Security Alarms, Clap Switches

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect for my Arduino clap switch project

This module works exactly as described. The sensitivity adjustment is very responsive, allowing me to tune it so it only triggers on a loud clap and ignores background noise. Wiring was straightforward with clear labels for VCC, GND, DO, and AO.

Anonymous

Mar 24, 2026

Rating: 4/5

Works well once understood

As a beginner, I wasn't sure about the difference between DO and AO pins at first. After reading some tutorials, I realized DO is for simple threshold detection and AO gives the analog amplitude. Very educational and functional module.

Anonymous

Mar 24, 2026

Rating: 5/5

Compact and effective

The small form factor fits easily into tight enclosures for my robotics projects. The detection range is sufficient for room-scale applications. No issues with false triggers after proper setup.

Anonymous

Mar 19, 2026

Rating: 5/5

Easy to integrate

Integrated this with an ESP32 for a voice-activated relay. The digital output makes coding very simple. It reacts quickly to whistle commands. Shipping was fast and the packaging protected the components well.

Anonymous

Mar 15, 2026

Rating: 4/5

Good value but needs calibration

Great little sensor for the price. Out of the box, it was a bit too sensitive, but after turning the potentiometer slightly, it worked perfectly for my hallway light automation. Just take your time to calibrate it.

Anonymous

Mar 01, 2026

Rating: 5/5

Reliable and low noise

I've tested several sound sensors, and this one has noticeably less electrical noise on the output compared to cheaper alternatives. The LM393 comparator ensures a clean digital signal. Highly recommended for prototyping.

5 FAQ

Q: Is a library required to use this with Arduino?

A: No specific library is required. You can read the digital output using a standard digitalRead() function or read the analog values using analogRead(). It functions like a standard button or potentiometer.

Q: Can this detect normal conversation levels or only loud claps?

A: It can detect both. By adjusting the onboard potentiometer, you can set the sensitivity threshold to trigger on soft sounds like conversation or restrict it to only loud noises like claps or whistles.

Q: What is the maximum current this module draws?

A: The module typically consumes around 4mA to 5mA when active. It is safe to power directly from the 5V or 3.3V pins of most microcontroller boards.

Q: Does this module provide an analog output or only digital?

A: This module provides both. The 'AO' pin outputs an analog voltage proportional to the sound intensity, while the 'DO' pin provides a digital high/low signal based on the threshold set by the potentiometer.

Q: Can I connect multiple of these modules to one microcontroller?

A: Yes, you can connect multiple modules. Just ensure each digital output is connected to a unique GPIO pin on your microcontroller. If using analog outputs, you will need separate analog input pins for each.

Explore your interests

STC32G12K128 STC8H8K64U Microcontroller Small System Core Board Development Board Emulator

$16.50

Youxin Electronics_STM32H743IIT6 Core Board System Board Learning Board STM32 Development Board

$118.00

Arduino DUE Development Board 32-bit ARM Controller A000062 Italian Official Original Import with Cable

$299.00

Ultrasonic Sensor HC-SR04 Ultrasonic Distance Measuring Module Bracket US015-025-026-100

$3.16

Serial SHT20 Chip Temperature and Humidity Sensor Test, SHT30 Chip Measurement and Monitoring Module by Viter Intelligence

$11.00

High-Speed Yabo Smart Raspberry Pi 4B Motherboard Development Board Accessories RaspberryPi 2G/4G/8G RAM Py

$494.30

Magnetic Circular Counting Chips, Two-Sided Flip Coins for Elementary Math, Kindergarten Early Education, Ten-Frame Matrix, Addition/Subtraction within 10 & 20, Teaching Tools

$11.90

3-Wire/4-Wire Flame Sensor Module, Fire Source Detection with IR Receiver, Flame Detection and Alarm

$1.08

SANSI White Label Class A Glass Graduated Cylinder C18 Micro-Precision Demulsification Cylinder with Scale Measurement Includes Certificate Ground Joint Stopper Hexagonal Bottom Borosilicate Glass Lab Equipment

$3.68

EV2400 Battery Unlock Fuel Gauge Programmer MSP430 HPA500 Evaluation Module Interface Board SMBus

$323.00

Cube Three-View Teaching Aid with Grid - 3D Geometry Observation Tool for Grades 4-5 Math (2cm Cubic Blocks Set)

$15.10

OrangePi Orange Pi Zero3 Zero 3 Development Board Allwinner H618 Orange Pi

$228.00

Digital 38KHz Infrared Receiver Transmitter Head Sensor Module Electronic Building Blocks Robot Infrared Communication Remote Control

$2.29

12V Stable Version Light-Control Switch No-Light Sensing with Extension Cable Photoresistor Plus Relay Module

$49.20

STM32 Smart Car 51 Microcontroller Arduino Obstacle Avoidance Chassis Kit Mecanum Wheel Robot Car

$40.80

Tech Small Production Small Invention DIY Piano Electronic Keyboard Real Playable Science Small Handmade DIY Materials

$33.00

[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range

$23.65

Transparent 3D Geometric Model Perspective Decomposition Graphic Teaching Aid, Complete Set for Elementary Grades 1-6 Math

$6.80

DHT22 Single-Bus Digital Temperature & Humidity Sensor AM2302 Module Electronic Building Blocks

$10.42

E18-D80NK Infrared Photoelectric Switch Diffuse Reflection Obstacle Avoidance Sensor Module 3-80CM

$12.60

LAN8720 Module Network Module Ethernet Transceiver RMII Interface Development Board Xinwei Electronics

$7.85

STC15W408AS Core Board Minimum System Board 51 Microcontroller Development Board TTSOP20 Learning Board

$18.47

New Version MEGA2560 R3 Development Board, Improved MEGA2560 R3 with Sensor Expansion Board

$13.68

Gradient Visual Illusion Kit: Electric Rotating Assembly Toy for Maker DIY, Paintable Handmade Model

$8.72

51/AVR Microcontroller Core Development Board STC89C52RC/51MCU Experiment Board/ATMEGA32 Learning Board

$37.90

[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set

$15.00

GY-30 302 Digital Light Intensity Illuminance Sensor BH1750FVI Module Light Sensor Ball

$7.41

Foldable Clothes Drying Rack Floor Standing Home Balcony Bedroom Hanging Clothes Quilt Drying Artifact Outdoor Cooling Rod Indoor Drying Rack

$47.10

Metal Detector Module Non-Contact Metal Induction Sensor Detection Module Metal Detector

$8.70

RV1103 Miniature Linux Development Board: RISC-V Vision and AI with Ethernet Port

$53.10

For Arduino Development Board R3 Mainboard Microcontroller Module Kit Programming Learning Board Sensor Suite

$78.00

Xuefen Geometry Stamping and Tracing Set for Grades 1-2, 3D and 2D Ink Pads, Math Learning Tools, Cube and Cuboid Models

$4.51

Rubber Tire Toy 4WD Smart Car Wheels Car Model Robot Accessories (Suitable for 2mm Axle)

$0.50

E18-D80NK Infrared Obstacle Avoidance Sensor Proximity Switch Smart Robot Car 10-80cm

$6.30

Digital 38KHz Infrared Receiver/Transmitter Head Sensor Module for Electronic Building Blocks Robots, Infrared Communication Remote Control

$2.80

51 MCU Minimum System STC89C52 DIP40 Through-Hole Smart Car Main Control Board Learning Experiment

$19.80

Outdoor Adventure Kids' Insect Observation Box with Magnifying Glass, Boys & Girls Toy for Exploration, Butterfly Catching and Fish Scooping Tools

$7.80

MPU-9255 9-Axis Attitude 3-Axis Electronic Compass Accelerometer Gyroscope Magnetic Field Sensor Module

$13.42

Freeze-Dried Chicken Treats for Dogs: Nutritious Weight-Gain Breast Meat Chunks for Puppies – Teeth Cleaning, Grain Mixing, Universal Use

$3.90

Soil Moisture Sensor Probe Soil Moisture Meter Detection Module Sensor Separate Probe

$2.39