Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	3.3V - 5V DC
Sensitivity Adjustment	Potentiometer controlled
Output Signal	Digital Switching (0 and 1)
Detection Range	Approx. 3-5 meters
Microphone Type	Electret Condenser
Indicator LED	Power and Trigger status
Mounting Hole Diameter	3.0 mm
PCB Dimensions	32mm x 16mm
Response Time	< 10ms
Compatible Platforms	Arduino, Raspberry Pi, ESP32

6 reviews

Anonymous

Mar 31, 2026

Rating: 3/5

Decent but range varies

The module works, but the effective range seems to depend heavily on the ambient noise level. In a quiet room, it's great. In a noisy workshop, it struggles even with adjustment.

Anonymous

Mar 14, 2026

Rating: 4/5

Good value but needs calibration

Great little sensor for the price. It took a few minutes to get the sensitivity right so it wouldn't trigger from normal conversation, but once set, it's very reliable for switching lights.

Anonymous

Mar 10, 2026

Rating: 5/5

Highly sensitive and responsive

I used this for a voice-activated robot prototype. The response time is incredibly fast. The digital output makes interfacing with microcontrollers simple without needing extra comparators.

Anonymous

Mar 09, 2026

Rating: 5/5

Simple solution for sound control

Exactly what I needed to add sound control to my DIY smart home setup. It ignores the TV noise but picks up a sharp clap perfectly. Very satisfied with the build quality.

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect for my Arduino clap project

This module works exactly as described. The sensitivity potentiometer makes it very easy to tune out background noise and only react to claps or whistles. Wiring was straightforward with clear labels.

Anonymous

Mar 02, 2026

Rating: 4/5

Works well for school projects

Bought this for a university electronics assignment. It detected whistle commands clearly across the room. The only downside is the screw terminals are a bit small for thick wires.

5 FAQ

Q: Can this module detect specific words or just sound levels?

A: This module detects sound intensity levels (amplitude) rather than specific words. It triggers when the sound exceeds the threshold you set via the potentiometer.

Q: How do I adjust the sensitivity?

A: There is a blue potentiometer on the board. Turn it clockwise to increase sensitivity (detect softer sounds) and counter-clockwise to decrease it (require louder sounds).

Q: Can I use this outdoors?

A: This module is not weatherproof. If used outdoors, it must be housed in a waterproof enclosure that allows sound to pass through, such as one with a breathable membrane.

Q: Does this come with connecting wires?

A: No, the package includes only the sensor module. You will need to purchase jumper wires separately to connect it to your microcontroller.

Q: Is the output voltage compatible with 3.3V logic boards?

A: Yes, the module operates on 3.3V to 5V DC, and the digital output swings between GND and VCC, making it fully compatible with 3.3V systems like the ESP32 or Raspberry Pi.

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