Grove Sound Sensor (ของแท้ Seeed Studio) + Free Cable

Grove - Sound Sensor

โมดูลวัดเสียง โดยใช้ Microphone และ วงจรขยาย LM358 ให้ค่าเป็นสัญญาณ Analog เพื่อเข้า port ของ Arduino หรือ Microcontroller อื่นๆ

ตัวอย่างและรายละเอียดอุปกรณ์ 

http://www.seeedstudio.com/wiki/index.php?title=Twig_-_Sound_Sensor

Introduction

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.

Features

• Easy to use sound sensor module
• Provides analog output signal
• Easily integrates with Logic modules on the input side of Grove circuits
• Uses Standard 4-pin Grove Cables to connect to other Grove modules such as Grove Power Modules, Logic Gates and Grove - Base Shield

Specifications

• Operating voltage range: 4-12V
• Operating current (Vcc=5V): 4-8mA
• Voltage Gain (VS=6V, f=1 kHz): 26dB
• Microphone sensitivity (1Khz): 52-48dB
• Microphone Impedance: 2.2KΩ
• Microphone Frequency: 16-20Khz
• Microphone S/N ratio: 54dB

Usage

Standalone

Follow these steps to build a sample Grove circuit using this module but without using any microcontroller board:

1. Connect the sound sensor module to the input side of your circuit (to the left of the power module). On the output side of the circuit, you may use a range of User Interface modules (Grove - Red LED, Grove - LED String Light, Grove - Mini Fan, Grove - Buzzer, Grove - Recorder etc.)
2. Power up the circuit when complete.
3. The sound sensor module can now be used to trigger an output. For example:

• When used in conjunction with a Grove - Red LED output module, observe that the LED turns ON when the sound sensor detects audio and turns off in silence. The same behavior can be seen when the sound sensor is used with the Grove - LED String Light module - when there is sound, the lights will turn ON, and when there is silence, the lights will turn OFF.

• Add a Grove - NOT module between the sound sensor and the power module to reverse the logic that triggers the LEDs on the Grove - Red LED or Grove - LED String Lightmodules. With the addition of the Logical NOT gate on the input side, you should see that the LEDs remain OFF when sound or music is detected, and turn ON when there is silence. 

You can use either the Grove - USB Power module or the Grove - DC Jack Power module for building this Grove circuit.

Resources

• Grove - Sound Sensor Schematic (pdf)
• Grove - Sound Sensor Source Files v1.3
• Grove - Sound Sensor Eagle files v0.9b
• LM386pdf
• how to upload code