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.
Grove compatible interface
Wide supply voltage range
Built-in signal filtering
Gain adjustable via screw potentiometer
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.
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.
|Dimensions||24mm x 20mm x 9.8mm|
|Working Frequency||50~2000 Hz|
|Signal-to-noise Ratio||>58 dB|
|Output Signal range||Analog Signal (0-1023)|
|Grove - Loudness Sensor||1|
The time last of a clap is short, your mcu or sensor may not catch this sound.
Please try to reduce the checking time in the code and keep clapping see if any better.
Does it come with a cable?
Yes, it comes with the cable
is it possible to use it with 3.3V power? I am using a MSP430 micro controller that operates on 3.3 V. If not, is there another board that works with 3.3 V?
Yes,the Loudness Sensor can work well under 3.3V power.
I bought this sensor.
And I could not know the principle of this sensor.
PLEASE SEND ME THE CIRCUIT OF THIS SENSOR.
AND PLEASE WRITE THE CAPACITANCE AND RESISTANCE.
Please help me~T.T
Hi, you can download the eagle circuits here: http://www.seeedstudio.com/wik...
I could not open the file".brd".
how can i open '.brd' file?
i tried to open that file through 'Allegro Free Physical Viewer 15.7"
but, i could not open with this message"The database is corrupted. It may have been copied from a different
Please try this software"Eagle"to open the schematics files.
What is the difference between the Grove loudness sensor and the grove sound sensor?
Which would be better at detecting loud low sounds? (e.g. neighbor's truck)
The Working Frequency is different,the working Frequency of loudness sensor only can up to 2K, but sound sensor can up to 16K.
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