KY037 Sensitivity Microphone Sound Detection Module Key benefits Detects subtle sound changes so you can measure volume or trigger actions reliably. Offers both analog and digital outputs for flexible use: analog for precise sound level readings, digital (DO) for simple thresholdbased switching. Easy to integrate into projects via standard pin headers; requires no complex wiring or setup, making it suitable for beginners and hobbyists. Operates on DC 4V–6V, matching common lowvoltage electronics and control boards. What makes it useful sensitivity microphone captures faint sounds and small variations in intensity, improving detection accuracy for voice and ambient noise. The digital output provides a clean on/off signal when sound exceeds an adjustable threshold, simplifying soundactivated control. The analog output provides a continuous voltage proportional to sound level for logging, display, or finegrained processing. Important attributes Model: KY037 Sensitivity Microphones Sound Detection Module. Outputs: Analog (for precise intensity measurement) and Digital Output (DO) for threshold detection. Power: DC 4V to 6V. Interface: Standard pin headers for straightforward connection to control boards and electronics platforms. Design: Compact PCBmounted microphone module designed for easy mounting and wiring. Practical applications (examples) Voiceactivated switch: Use the digital output to turn lights or devices on and off when a clap, spoken command, or other sound is detected. Noise monitoring for smart home: Use the analog output to record or trigger actions based on ambient noise levels (e.g., notifications when noise exceeds a set level). Soundresponsive robotics: Let a robot react to claps, voice prompts, or environmental sounds using the module's threshold detection and analog feedback. Integration tips Supply DC 4V–6V stable power; verify wiring to avoid voltage outside the operating range. Use the digital output when you need a simple trigger (connect to a digital input on your controller). Adjust the module's sensitivity if available to set the detection threshold. Use the analog output when you need to measure sound intensity or perform custom signal processing. This module is intended for hobbyist and educational electronics projects where reliable sound detection and simple integration are required, while preserving flexibility for both thresholdbased control and analog measurement.