Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Detection Range | 0 - 5 Meters |
| Sensitivity Adjustment | Potentiometer Controlled |
| Output Signal | Digital Switching (TTL) |
| Microphone Type | Electret Condenser |
| Response Time | < 10ms |
| PCB Dimensions | 32mm x 16mm |
| Mounting Holes | 4x 3.0mm Diameter |
| Compatible Platforms | Arduino, Raspberry Pi, ESP32 |
| Indicator LED | Power and Trigger Status |
Anonymous
Mar 30, 2026
Rating: 4/5
Good module, needs calibration
The build quality is solid. You do need to spend a few minutes tweaking the potentiometer to get the right detection range for your environment, but once set, it stays consistent.
Anonymous
Mar 28, 2026
Rating: 5/5
Great for learning electronics
Bought this for a university project. It interfaces easily with Arduino using simple digital read commands. The documentation online is helpful too.
Anonymous
Mar 20, 2026
Rating: 5/5
Perfect for my smart home project
This sensor works exactly as described. I used it to trigger lights when I clap, and the sensitivity adjustment makes it very reliable. Great value for the price.
Anonymous
Mar 19, 2026
Rating: 5/5
Reliable sound detection
I've integrated three of these into my robot prototype. They handle different sound frequencies well and haven't failed once during testing.
Anonymous
Mar 15, 2026
Rating: 5/5
Responsive and compact
Very small footprint which helped me fit it into a tight enclosure. The response time is fast enough for real-time applications like voice-activated switches.
Anonymous
Mar 10, 2026
Rating: 4/5
Solid performance
Works well for detecting claps or whistles. It might pick up some background noise if the sensitivity is maxed out, but that is expected behavior for this type of mic.
Q: How do I adjust the sensitivity?
A: There is a blue potentiometer on the board. Use a small screwdriver to turn it clockwise to increase sensitivity or counter-clockwise to decrease it while testing with a sound source.
Q: What is the maximum voltage this can handle without damage?
A: The module is designed for 3.3V to 5V operation. We recommend staying within 5V DC maximum to ensure the longevity of the onboard components.
Q: Is the output signal stable enough for outdoor use?
A: While the module functions outdoors, wind noise may trigger false positives. We suggest using a windscreen or housing the microphone in a protected area for outdoor deployments.
Q: Does this come with jumper wires included?
A: The package typically includes the PCB module only. Jumper wires are sold separately, but standard 0.1-inch pitch headers work perfectly with the pinout.
Q: Can this module detect specific voice commands like 'Alexa'?
A: No, this is an analog/digital sound intensity sensor. It detects the presence and volume of sound (like a clap or whistle) but does not process or recognize specific words or speech patterns.
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