Grove - LM2904 sound sensor

Module from the Grove series, based on the system LM2904 and a microphone. It can be powered with a voltage ranging from 3.5 V to 10 V. Output is the analog signal. The sensor can detect the strength of the environment's sound. It has an analog output that makes it compatible with most of the commissioning modules, including Raspberry Pi and Arduino.

Attention!

This product is only available in our market in Poland and cannot be sold to other countries.

The module is equipped with Grove interface that facilitates its connection to the Arduino along with Base Shield v2.0 or Raspberry via Hat of GrovePi+.

• Supply voltage: from 3.3 V to 10 V
• Output signal: analog (0 to 1023)
• Working frequency: 50 to 2000 Hz
• Sensitivity: -48 dB to 66
• The ratio of signal to noise: > 58 dB
• 50 multicolor LEDs
• Dimensions: 110 x 70 x 11 mm

• The website of the manufacturer: Seeedstudio 104020005
• Wiki
• User manual
• Eagle program files 
• LM2904DR system documentation 
• The project using the module
• Blog Seeedstudio
• Grove selection guide