How does a sound sensor work?<\/strong><\/h2>\n\n\n\n![\"\"](\"https:\/\/qph.fs.quoracdn.net\/main-qimg-2712ef391cc47d46de6fb935bb2c04b3\")
Sound waves propagating through air molecules<\/a><\/figcaption><\/figure><\/div>\n\n\n\nSound detection sensor works similarly to our Ears, having diaphragm which converts vibration into signals. However, what’s different as that a sound sensor consists of an in-built capacitive microphone, peak detector and an amplifier (LM386, LM393, etc.) that’s highly sensitive to sound. <\/p>\n\n\n\n
With these components, it allows for the sensor to work:<\/p>\n\n\n\n
- Sound waves propagate through air molecules<\/li>
- Such sound waves cause the diaphragm in the microphone to vibrate, resulting in capacitance change<\/li>
- Capacitance change is then amplified and digitalized for processing of sound intensity<\/li><\/ol>\n\n\n\n
What is a sound sensor used for? Applications<\/strong><\/h3>\n\n\n\nApart from building various electronic projects with Arduino (covered in the later section) and more, sound sensors are used in many other day to day applications including:<\/p>\n\n\n\n
- Consumer electronics such as phones, computers, music systems <\/li>
- Security and Monitoring systems such as burglar alarms, door alarm, etc.<\/li>
- Home automation such as lighting your house by detecting whistle\/clap instead of physically turning the light switch<\/li>
- Ambient sound recognition and sound level recognition<\/li><\/ul>\n\n\n\n
Introduction to Grove – Sound sensor module<\/a><\/strong><\/h3>\n\n\n\n![\"\"](\"https:\/\/media-cdn.seeedstudio.com\/media\/catalog\/product\/cache\/ab187aaa5f626ad16c8031644cd2de5b\/h\/t\/httpsstatics3.seeedstudio.comseeedimg2017-02fhpnt4qmmyzrtwvb40liimrw.jpg\")
<\/figure><\/div>\n\n\n\nBefore we move on to how to interface a sound sensor with Arduino, let’s first take a look at the sound sensor module we’ll be using for the tutorial!<\/p>\n\n\n\n
Based on the power amplifier LM386, the Grove – sound sensor module is a simple, low powered, and highly compatible option suitable to easily kickstart your next sound sensing project!<\/p>\n\n\n\n
With a wide voltage range and adjustable output by the potentiometer, it’s readily capable to detect the sound strength of the environment!<\/p>\n\n\n\n
Its features include:<\/strong><\/p>\n\n\n\n- Grove <\/a>compatible interface
- Seeed’s own plug and play system, no soldering or jumper wires needed for pairing as compared to other sound sensor breakout boards<\/li><\/ul><\/li>
- Analog output signal<\/li>
- Wide supply voltage range: 4V-12V
<\/li> - Low quiescent current drain: 4mA
<\/li> - 2.0cm x 2.0cm twig module
<\/li> - Minimum external parts<\/li><\/ul>\n\n\n\n
On top of all these features and benefits, this sound sensor is only priced at $4.90!<\/p>\n\n\n\n
*Note: This sound sensor module is used as a sound detector, to sense whether there’s surround sound and is not recommended for the collection of sound signals. For sound signal collection, you can consider the Grove – Loudness sensor<\/strong>\u00a0<\/a>instead!<\/p>\n\n\n\nSound Sensor Arduino Tutorial<\/strong><\/h2>\n\n\n\n
Sound detection sensor works similarly to our Ears, having diaphragm which converts vibration into signals. However, what’s different as that a sound sensor consists of an in-built capacitive microphone, peak detector and an amplifier (LM386, LM393, etc.) that’s highly sensitive to sound. <\/p>\n\n\n\n
With these components, it allows for the sensor to work:<\/p>\n\n\n\n
- Sound waves propagate through air molecules<\/li>
- Such sound waves cause the diaphragm in the microphone to vibrate, resulting in capacitance change<\/li>
- Capacitance change is then amplified and digitalized for processing of sound intensity<\/li><\/ol>\n\n\n\n
What is a sound sensor used for? Applications<\/strong><\/h3>\n\n\n\n
Apart from building various electronic projects with Arduino (covered in the later section) and more, sound sensors are used in many other day to day applications including:<\/p>\n\n\n\n
- Consumer electronics such as phones, computers, music systems <\/li>
- Security and Monitoring systems such as burglar alarms, door alarm, etc.<\/li>
- Home automation such as lighting your house by detecting whistle\/clap instead of physically turning the light switch<\/li>
- Ambient sound recognition and sound level recognition<\/li><\/ul>\n\n\n\n
Introduction to Grove – Sound sensor module<\/a><\/strong><\/h3>\n\n\n\n
<\/figure><\/div>\n\n\n\nBefore we move on to how to interface a sound sensor with Arduino, let’s first take a look at the sound sensor module we’ll be using for the tutorial!<\/p>\n\n\n\n
Based on the power amplifier LM386, the Grove – sound sensor module is a simple, low powered, and highly compatible option suitable to easily kickstart your next sound sensing project!<\/p>\n\n\n\n
With a wide voltage range and adjustable output by the potentiometer, it’s readily capable to detect the sound strength of the environment!<\/p>\n\n\n\n
Its features include:<\/strong><\/p>\n\n\n\n
- Grove <\/a>compatible interface
- Seeed’s own plug and play system, no soldering or jumper wires needed for pairing as compared to other sound sensor breakout boards<\/li><\/ul><\/li>
- Analog output signal<\/li>
- Wide supply voltage range: 4V-12V
<\/li> - Low quiescent current drain: 4mA
<\/li> - 2.0cm x 2.0cm twig module
<\/li> - Minimum external parts<\/li><\/ul>\n\n\n\n
On top of all these features and benefits, this sound sensor is only priced at $4.90!<\/p>\n\n\n\n
*Note: This sound sensor module is used as a sound detector, to sense whether there’s surround sound and is not recommended for the collection of sound signals. For sound signal collection, you can consider the Grove – Loudness sensor<\/strong>\u00a0<\/a>instead!<\/p>\n\n\n\n
Sound Sensor Arduino Tutorial<\/strong><\/h2>\n\n\n\n
- Grove <\/a>compatible interface