T2N2 Sound Detection Sensor Module

The T2N2 Sound Detection Sensor Module is a simple and efficient sound sensing module designed for detecting audio signals and triggering electronic responses in embedded systems and automation projects. The module uses a sensitive electret condenser microphone combined with an onboard LM393 comparator chip to detect surrounding sound levels accurately.

When sound intensity exceeds the detection threshold, the module outputs a digital low-level signal and activates the onboard indicator LED. This makes the module ideal for sound-triggered applications such as clap switches, alarms, smart lighting systems, and audio detection projects.

The sensor operates within a voltage range of 4V to 6V DC, making it compatible with Arduino, ESP32, STM32, Raspberry Pi, and other development platforms. Its compact size allows easy integration into robotics, automation systems, and educational electronics projects.

With a maximum sensing distance of approximately 0.5 meters, the module is suitable for short-range sound detection and acoustic control applications.

Specifications

• Product Type: Sound Detection Sensor Module
• Model: T2N2
• Main Chip: LM393 Comparator
• Microphone Type: Electret Condenser Microphone
• Operating Voltage: DC 4V – 6V
• Output Type: Digital Switch Output
• Signal Logic: Low-level output when sound is detected
• Indicator LED: Yes
• Maximum Detection Distance: Approximately 0.5 m
• Dimensions: 32 × 17 × 15 mm

Applications

• Sound-activated switches
• Clap-controlled projects
• Acoustic alarm systems
• Smart lighting control
• Audio detection circuits
• Arduino sound sensing projects
• Robotics and automation systems
• Interactive electronic projects
• Educational electronics experiments