Sound Sensor Module 3 pin

The Sound Sensor Module is an easy-to-use device designed to detect sound intensity in the environment. Equipped with a high-sensitivity microphone and a built-in comparator circuit, it outputs a digital signal on pin 3 when sound exceeds a preset threshold, making it ideal for sound-activated projects like alarms, voice recognition triggers, and noise monitoring.

The onboard potentiometer allows you to adjust the sensitivity level so the sensor can be calibrated for different sound environments, from quiet rooms to noisy outdoors. Compatible with popular microcontrollers such as Arduino, ESP32, and Raspberry Pi, this module is widely used in DIY sound detection and automation projects.

Key Features:

• ✅ Digital Sound Detection Output on Pin 3
  Provides a clean HIGH/LOW digital output signal indicating sound presence.

• ✅ Adjustable Sensitivity
  Onboard potentiometer lets you fine-tune the trigger threshold for different environments.

• ✅ Built-in Microphone & Amplifier
  High-quality mic with integrated amplifier circuit ensures reliable sound detection.

• ✅ Compact and Lightweight
  Small form factor ideal for embedded electronics and hobby projects.

• ✅ Easy Interface
  Standard 3-pin connection: VCC, GND, and Digital Output (Pin 3).

• ✅ Low Power Consumption
  Suitable for battery-powered or low-power embedded systems.

Specifications:

• Operating Voltage: 3.3V – 5V DC

• Output: Digital (Pin 3)

• Sensitivity: Adjustable via potentiometer

• Microphone Type: Electret condenser microphone

• Interface: 3-pin (VCC, GND, Digital Out on Pin 3)

• Dimensions: Approx. 3 cm x 2 cm

• Power Consumption: < 10mA