KY-037 Voice Sound Detection SensorSpecificationsName: KY-037 Voice Sound Detection SensorModule Type: Sound DetectionUse Case: Sound intensity monitoring and sound-triggered actionsOutput Type: Analog and Digital2. Electrical SpecificationsOperating Voltage: 3.3V – 5VOutput:Analog Output (AO): Varies with sound intensity, and is useful for measuring sound amplitude.Digital Output (DO): High (logic level 1) when the sound level exceeds the threshold; otherwise Low (logic level 0).Current Consumption: Approx. 4-5 mA3. Physical DimensionsPCB Dimensions: Approx. 38mm x 15mm x 13mm (L x W x H)Weight: Approx. 5gPin Header: 3-Pin (DO, AO, GND, VCC)4. Components and FeaturesMicrophone: High-sensitivity condenser microphone.Adjustable Potentiometer: Adjusts the sound sensitivity level threshold for the digital output.LM393 Comparator: Integrated to process sound intensity and determine digital signal output.Indicator LEDs:Power LED: Shows module power status.Signal LED: Lights up when the sound threshold is reached (Digital Output High).Anti-Interference Design: Designed to reduce false triggers from ambient noise.5. Performance SpecificationsSensitivity Range: Typically effective for detecting claps, knocks, or other sharp sounds within a few meters.Frequency Response: Optimized for sounds within the human audible range (approx. 20Hz – 20kHz).Output Response Time: Fast response to sudden changes in sound intensity; ideal for real-time applications.6. ApplicationsSound-triggered projects, such as clap switches for lights, alarms, and sound-activated toys.Environmental noise monitoring.Voice detection systems for speech-activated processes.7. Wiring and ConnectionsPinout:VCC: Connects to a 3.3V or 5V power source.GND: Ground connection.AO (Analog Output): Outputs an analog voltage corresponding to the sound intensity.DO (Digital Output): Outputs a digital HIGH when the sound level exceeds the set threshold. SKU: LKSEN00054 Category: Sensors
