Sound detection module with digital switching output — reliable sound-activated trigger with adjustable sensitivity and easy mounting. Key benefits Provides a clear digital switching output (0/1 high-low) so processors and controllers receive an unambiguous trigger signal. Adjustable sensitivity lets you tune detection for quiet rooms or noisy environments, reducing false triggers. Fixed bolt hole and compact PCB design simplify secure mounting and integration into projects or enclosures. Main features Digital switching output: delivers a binary HIGH/LOW signal for straightforward interfacing with microcontrollers, relays, and logic circuits. Sound-activated detection: responds to sound events and converts them into a digital switch output for automatic control. Sensitivity adjustment: blue digital potentiometer allows precise, repeatable tuning of detection threshold; the setting is visible on the potentiometer. Mounting-friendly design: includes a fixed bolt hole for stable installation on panels, chassis, or project boxes. Function and performance Designed to provide fast detection and a clean digital output rather than analog audio data, making it suitable for control and automation tasks. Sensitivity control enables reliable operation across different acoustic conditions and distances without changing hardware. Compact PCB and standard wiring pins allow easy wiring and integration with existing systems. Compatibility and materials Standard PCB module construction with electronic components and pin headers for easy connection. Compatible with common microcontrollers, development boards, relay modules, and digital input circuits that accept a binary high/low signal. Can be mounted in enclosures or fixed to frames using the provided bolt hole. Installation and use Mount the module using the fixed bolt hole to prevent movement and reduce mechanical noise pickup. Connect the digital output to your controller’s digital input or to a driver circuit. Adjust the blue digital potentiometer while testing to set the desired sound threshold for your environment. Practical applications Hands-free lighting: trigger lights or indicators with a clap or other distinct sound for convenience and energy savings. Security and alert systems: use sound events as one input to an alarm or monitoring system to detect glass breakage, loud disturbances, or other audible anomalies. Robotics and interactive projects: add a sound-activated input to robots, toys, or exhibits to enable simple voice or clap responses without complex audio processing. What it solves Eliminates the need for continuous analog signal processing by providing a ready-to-use digital trigger. Reduces installation time with a dedicated mounting hole and straightforward wiring. Offers flexible sensitivity control so one module can be used in multiple environments. Notes This module outputs a digital switching signal (0/1 high-low) and is intended for use as a trigger or sensor input, not as an audio capture device. Adjust sensitivity via the blue digital potentiometer to match the sound level and avoid false positives.