Description
Reviews
| 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 |
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.
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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