Grove - Sound Sensor


enter image description here

Grove - Sound Sensor can detect the sound strength of the environment. The main component of the module is a simple microphone, which is based on the LM358 amplifier and an electret microphone. This module’s output is analog and can be easily sampled and tested by a Seeeduino.


  • Easy to use
  • Provides analog output signal
  • Easily integrates with Logic modules on the input side of Grove circuits
  • Grove System


This sound sensor is to detect if there’s sound surround or not, please don’t use the module to collect sound signal. Such as you can use it to make a sound control lamp, but not as a recording device.


Item Value
Operating Voltage Range 3.3/5 V
Operating Current(Vcc=5V) 4~5 mA
Voltage Gain(V=6V, f=1kHz) 26 dB
Microphone sensitivity(1kHz) 52-48 dB
Microphone Impedance 2.2k Ohm
Microphone Frequency 16-20 kHz
Microphone S/N Radio 54 dB

Platform Support

Arduino Wio BeagleBone Raspberry Pi LinkIt
enter image description here enter image description here enter image description here enter image description here enter image description here

Getting Started


This chapter is based on Win10 and Arduino IDE 1.6.9

This an easy-to-use module, what you need to do is connect the signal pin (the YELLOW pin of Grove cable) to the ADC input of your controller. If there’s no internal ADC in your controller, Grove - I2C ADC is recommend.

Here we will show you how this Grove - Sound Sensor works via a simple demo. First of all, you need to prepare the below stuffs:

Seeeduino V4 Grove - Sound Sensor Base Shield
enter image description here enter image description here enter image description here
Get ONE Now Get ONE Now Get ONE Now


Thanks to the benefit of Grove series modules, you don’t need to make soldering or bread board, what you need to do is connect the modules to the right port of Base Shield. For this demo, we have only one Grove module.

  • Grove - Sound Sensor is an analog output module, we connect it to A0 at this demo

enter image description here

Upload the code to Arduino

Copy the below code to Arduino IDE.

// test code for Grove - Sound Sensor
// loovee @ 2016-8-30

const int pinAdc = A0;

void setup()
    //Serial.println("Grove - Sound Sensor Test...");

void loop()
    long sum = 0;
    for(int i=0; i<32; i++)
        sum += analogRead(pinAdc);

    sum >>= 5;


Then choose the right Board and COM port, and then click on the Upload button, this process take few seconds.

Get Raw Data

Here let’s click on Serial > Plotter to get the changing curve of the sensor. Please make a noise to view the change of the value.

enter image description here


Help us make it better

Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our documentation system. What you are looking at now is the first edition of the new documentation system. Comparing to the old one, here is the progresses that we made:

  • Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely used and cooler tool to develop documentation system.
  • Integrated the documentation system with our official website, now you can go to Bazaar and other section like Forum and Community more conveniently.
  • Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will continue migrate documents from old wiki to the new one.

An easy-to-use instruction is as important as the product itself. We are expecting this new system will improve your experience when using Seeed’s products. However since this is the first edition, there are still many things need to improve, if you have any suggestions or findings, you are most welcome to submit the amended version as our contributor or give us suggestions in the survey below, Please don’t forget to leave your email address so that we can reply.

Happy hacking