Description
Upgrade your DIY electronics projects with the Microphone Voice Sound Sensor Detection Module – the perfect companion for Arduino, AVR, and PIC microcontrollers. Designed for precise sound and voice detection, this compact module (compatible with both KY‑038 and KY‑037 models) delivers reliable analog and digital outputs, making it ideal for a wide range of interactive and IoT applications.
Overview
The KY‑038/KY‑037 sound sensor module captures ambient audio, converts it into a clear voltage signal, and provides an instant digital trigger when sound levels exceed a set threshold. Its built‑in LM393 comparator and adjustable potentiometer give you full control over sensitivity, ensuring accurate detection in noisy or quiet environments.
Key Highlights
- Dual output: Analog voltage for real‑time sound level monitoring and Digital high/low signal for instant event detection.
- Adjustable sensitivity via on‑board potentiometer – fine‑tune for whisper‑level or loud‑noise detection.
- Compact 3.5 × 2.0 cm footprint – fits easily on breadboards and custom PCBs.
- Low‑power consumption – ideal for battery‑operated and remote sensor networks.
- Built‑in LM393 comparator for noise‑free digital output.
- Compatible with Arduino, AVR, PIC, ESP8266, ESP32 and other 5 V microcontroller platforms.
Technical Specifications
- Operating voltage: 3.3 V – 5 V
- Output type: Analog (0‑5 V) & Digital (0 V / VCC)
- Sensitivity adjustment: 0 – 100 dB (potentiometer)
- Frequency response: 20 Hz – 20 kHz
- Microphone type: Electret condenser
- Dimensions: 35 mm × 20 mm × 12 mm
- Current draw: < 5 mA (idle), < 30 mA (active)
Compatibility & Integration
Plug‑and‑play with standard VCC, GND, AO (analog output), and DO (digital output) pins. No additional drivers are required – simply connect to your microcontroller and start coding. Sample libraries and example sketches are available for Arduino, making setup a breeze.
Typical Applications
- Voice‑activated switches and smart home controls
- Sound‑level monitoring for environmental noise surveys
- Clap‑controlled lighting or appliances
- Security alarms that trigger on sudden loud noises
- Interactive toys and robotics that respond to sound cues
- IoT projects that send audio alerts to the cloud
Why Choose This Sound Sensor?
Whether you’re a hobbyist, educator, or professional developer, this microphone module offers the reliability and flexibility needed for rapid prototyping. Its dual‑output design eliminates the need for extra circuitry, while the adjustable gain ensures consistent performance across diverse acoustic environments.
Package Includes
- 1 × Microphone Voice Sound Sensor Module (KY‑038/KY‑037)
- 1 × Quick‑start guide with wiring diagram
- 1 × Sample Arduino sketch (ZIP)
Boost your project’s interactivity and responsiveness today with the Microphone Voice Sound Sensor Detection Module for Arduino AVR PIC. Order now and start building smarter, sound‑aware devices!
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