A
Anonymous
Mar 01, 2026
Rating: 5/5
Reliable data output
Using this for environmental monitoring. Serial output is clean and consistent over time.
Description
Decibel Noise Detection Module Sound Pressure Sensor Compact Serial TTL
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface Type | TTL Serial (UART) |
| Operating Voltage | 3.3V to 5V DC |
| Sound Level Range | 30dB to 130dB |
| Frequency Weighting | A-Weighting |
| Accuracy | ±1.5dB (at 94dB, 1kHz) |
| Frequency Response | 31.5Hz to 8.5kHz |
| Board Dimensions | 45mm x 20mm x 15mm |
| Operating Temperature | -10°C to 60°C |
| Response Time | Less than 500ms |
| Microphone Type | High Sensitivity Electret |
5 reviews
A
Anonymous
Feb 21, 2026
Rating: 5/5
Perfect for Arduino logging
Works seamlessly with my Uno. Readings are stable and easy to parse via serial monitor.
A
Anonymous
Feb 13, 2026
Rating: 4/5
Good value sensor
Accurate enough for home projects. Wiring diagram could be clearer for beginners.
A
Anonymous
Feb 05, 2026
Rating: 5/5
Compact and efficient
Small footprint fits easily in my enclosure. Very satisfied with the build quality.
A
Anonymous
Feb 04, 2026
Rating: 3/5
Needs calibration
Works but needed adjustment to match my professional meter. Good for relative measurements.
5 FAQ
Q: What baud rate does it use?
A: Default is 9600bps, configurable via serial commands in the firmware.
Q: Can I use this outdoors?
A: The module itself is not waterproof. Please use a protective enclosure.
Q: Is there a library available?
A: Example code is provided in the documentation wiki for common platforms.
Q: Does it require external power supply?
A: It can be powered by the host MCU if it supplies sufficient 5V current.
Q: Is this compatible with Raspberry Pi GPIO?
A: Yes, via UART pins. Ensure voltage levels match the Pi's 3.3V logic.
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