Sound Sensor

The Sound Sensor Module for Arduino is a compact and efficient solution for detecting sound in its environment. Built around the LM393 comparator and an electret condenser microphone, this module outputs a low-level signal when sound is detected, making it suitable for acoustic control applications such as alarms, lighting systems, and interactive robotics.

It features a single-channel signal output and an induction range of up to 0.5 meters. The module is designed to respond to the presence of sound rather than its intensity or frequency, making it ideal for simple sound-triggered operations. With a working voltage range of 3.3V to 5V, it integrates easily with Arduino and other microcontroller platforms.

Applications:

• Sound-activated lighting
• Security and alarm systems
• Interactive robotics
• DIY electronics projects

Specifications:

• Main Chip: LM393
• Microphone: Electret condenser
• Operating Voltage: 3.3V – 5V DC
• Induction Distance: 0.5 meters
• Output: Low-level digital signal
• Dimensions: 43mm x 17mm x 8mm
• Weight: 3g

Package Includes:

• 1 x Sound Detection Module Sensor

Note: This sensor detects the presence of sound but does not measure its volume or frequency.