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Grove - Loudness Sensor

SKU 101020063
The Grove - Loudness Sensor is designed to detect the loudness of environmental sound
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Description
The Grove - Loudness Sensor is designed to detect the loudness of environmental sound. Based on amplifier LM2904 and a built-in microphone, it amplifies and filters the high frequency signal that received from the microphone, and outputs a positive envelop. 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, input signal will go through two times’ filtering inside the module. Lastly, there is a screw potentiometer that enables manual adjustments to the output gain.
 
Features
  • Grove compatible interface
  • Wide supply voltage range
  • Built-in signal filtering
  • Gain adjustable via screw potentiometer
Specifications
 

Item

Min

Typical

Max

Unit

Voltage

3.5

5.0

10

VDC

Working Frequency

50

-

20,000

HZ

Sensitivity

-48

-

66

dB

Signal-to-noise Ratio

>58

dB

Output Signal range

Digital Signal (0-1023)

/

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.
 
Documents
 
Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to ourforum.
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Questions and Answers
188
Does the "Ink"Color Bag have silver tone hardware? (Chain)? It is hard to tell in photo
on Aug 5, 2014
Reply upvote (30)
I bought the black one and the chain is gold color. Not sure of the ink bag.
on Aug 5, 2014
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You need a WiFi Internet connection, and a smartphone or tablet for the Echo App. That's it. It is easy to set up, but it may take you a while to figure out all of the little things that the Echo App can do.
on Aug 5, 2014
Reply upvote (30)
BEWARE this is NOT STEREO and it is NOT MONO. This is only one channel. You will not hear part's of songs (recorded in stereo) that are only played through the left channel. Kinda ridiculous. Still it is a decent sounding speaker.
on Aug 5, 2014
Reply upvote (30)
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Reviews
★★★★★ Great bag
Purchased this for my 23 year old daughter in the butterscotch color. Great versatile color. She loves the size -- perfect for day or going out at night. Chain can be double to shorten for nighttime and left long to wear as a crossbody during the day.
September 2, 2013 by
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