KY-037 Microphone Sound Sensor Module
Price: 33.0
A high-sensitivity sound detection module designed for AVR, PIC, Arduino, ESP32, Raspberry Pi, and other microcontroller projects. Equipped with an electret condenser microphone and LM393 comparator, this module can detect ambient sound intensity and provide both analog and digital output signals for flexible integration in DIY electronics and embedded systems. Ideal for clap detection, voice-activated switches, sound alarms, smart home systems, and interactive robotics projects, the KY-037 offers adjustable sensitivity using the onboard potentiometer. The digital output triggers when sound exceeds the preset threshold, while the analog output provides real-time sound level readings. Features High-sensitivity electret microphone Compatible with AVR, PIC, Arduino, ESP32, Raspberry Pi, and other MCUs Dual output: Analog output (AO) for sound level measurement Digital output (DO) with adjustable threshold Onboard LM393 comparator Adjustable sensitivity via potentiometer LED power and signal indicators Compact and easy-to-use design Operating voltage: 3.3V – 5V DC Specifications Model: KY-037 Sensor Type: Sound / Microphone Sensor Operating Voltage: 3.3V – 5V DC Output Type: Analog and Digital Comparator IC: LM393 Microphone Type: Electret condenser microphone Interface Pins: AO, GND, VCC, DO Dimensions: Approx. 38 × 15 × 12 mm Designed mainly for sound detection and threshold triggering, not for high-quality audio recording.