🎤 Grove - LM386 Sound Sensor

Description:
The "Grove - LM386 Sound Sensor" is an analog sound module based on the LM386 amplifier, designed to detect sound intensity levels. It offers high sensitivity and easy integration with microcontrollers via its analog output. Ideal for sound-activated systems, alarms, automatic doors, or voice recognition projects.

🔧 Technical Specifications

• Operating Voltage: 3.3 V – 5 V
• Sensor Type: Analog sound sensor
• Amplifier: LM386
• Signal Output: Analog (A0)
• Frequency Response: 20 Hz – 20 kHz
• Component: Built-in condenser microphone
• Interface: 4-pin Grove connector
• PCB Dimensions: 40 mm x 20 mm

⚙️ Usage

1. Connect the module to a Grove base shield (e.g., Seeeduino or Arduino).
2. Read the analog signal from the A0 pin.
3. Implement logic based on sound level threshold (e.g., if A0 > 400, turn on an LED).

📦 Package Includes

• 1 x Grove - LM386 Sound Sensor
• 1 x 4-pin Grove Cable

📚 Example Arduino Code

```cpp const int sensorPin = A0; const int ledPin = 13;

void setup() { pinMode(ledPin, OUTPUT); Serial.begin(9600); }

void loop() { int sensorValue = analogRead(sensorPin); Serial.println(sensorValue); if(sensorValue > 400) { digitalWrite(ledPin, HIGH); } else { digitalWrite(ledPin, LOW); } delay(100); }