Microphone module - Analog Sound Sensor Module for Arduino

Analog Sound Sensor Microphone Module for Arduino

The Analog Sound Sensor Microphone Module is a reliable audio detection unit designed for Arduino and other microcontroller platforms. It detects environmental sound levels and outputs a clean analog voltage signal representing sound intensity, making it perfect for noise-based triggers, audio-responsive lighting, alarms, and interactive DIY projects.

With its onboard microphone, amplifier, filter circuit, and adjustable gain, this module offers stable and accurate sound detection. Ideal for beginners, makers, robotics projects, and embedded system applications.

Key Features:

• Accurate sound intensity detection
• Built-in amplifier with adjustable gain
• Integrated filter–rectifier circuit for stable output
• Analog voltage output (amplitude centered around VCC/2)
• Easy interface with Arduino and other microcontrollers
• Compact PCB design for DIY projects

Applications:

• Voice-activated switches
• Sound level indicators (VU meters)
• Audio-responsive LED projects
• Noise-triggered alarms
• Smart home sound detection
• Robotics and interactive systems

Specifications:

• Output: Analog voltage
• Gain Control: Adjustable
• Operating Voltage: 3.3V – 5V
• PCB Size: 35 × 18 mm
• Mounting Hole Size: 3 mm
• Compatibility: Arduino, ESP32, Raspberry Pi (with ADC), etc.

Package Includes:

• 1 × Analog Sound Sensor Microphone Module for Arduino