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Seeed Studio

Seeed Studio Grove Loudness Sensor

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Sound Sensor Modules for everyday users

The Seeed Studio Grove Loudness Sensor by Seeed Studio is a value-for-money sound sensor modules designed for everyday users. It features Operating Voltage (VDC): 3.5 to 10 and Frequency Range (Hz): 50 to 2000.

₹1,200
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Total: ₹1,200
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 24 Aug7 Sept
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Quick Specs

Operating Voltage (VDC): 3.5 to 10
Frequency Range (Hz): 50 to 2000
S/N Ratio (dB): > 58
Length (mm): 24
Width (mm): 20
Mounting Hole Diameter (mm): 2

Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: robu-597665Category: Sound Sensor Modules

About This Product

The Seeed Studio Grove Loudness Sensor by Seeed Studio is a value-for-money sound sensor modules designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Operating Voltage (VDC): 3.5 to 10 — works with standard household power
  • Frequency Range (Hz): 50 to 2000 — reliable connection even at a distance
  • S/N Ratio (dB): > 58
  • Length (mm): 24
  • Width (mm): 20
  • Mounting Hole Diameter (mm): 2
  • Weight (g): 4
  • Shipping Weight: 0.005 kg

Why Buy from Elecvora?

Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

How loud is too loud? Want to detect? But, detecting sound isn't as simple as a mic into an input, that's why we are presenting the Seeed Studio’s Grove – Loudness Sensor for it! With this sensor, you will be able to detect the environmental sound and measure its loudness in terms of intensity.

This sensor is based on amplifier LM2904 and a built-in microphone. Signal conditioning and gain control are important and are incorporated into this Grove Loudness sensor. Using an electret mic and two-stage high-pass filter using an LM2904 OP-AMP, it creates a nice, detectable envelope signal for your Grove project.

This sensor receives the high-frequency signal from the microphone, then amplifies it to a certain extent and then, filters it. And finally, it provides a positive envelope at the output. This will make for Arduino’s signal acquisition. The output value depends on the level of sound input. In order to avoid unnecessary signal disturbances, the input signal will go through two times’ filtering inside the module. This sensor comes with a built-in screw potentiometer that enables manual adjustments to the output gain.

For all Grove users (especially beginners), Seeed Studio provides guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before using the product. This is a suitable product for not only Grove users but also all electronic enthusiasts. So, why wait? Buy now!


Features:

  1. Gain adjustable via screw potentiometer
  2. Wide supply voltage range
  3. Built-in signal filtering
  4. Grove compatible interface
  5. Easy to use

Useful Links:

Tutorial


Package Includes:

1 x Seeed Studio Grove Loudness Sensor

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.