Sound Detection Module KY-038

KY-038 sound detection unit is a simple and effective unit for detecting the presence of sound in the surrounding environment. It is suitable for applications that do not require accurate measurement of sound intensity, but just knowing whether there is sound or not, such as activating lights by clapping. The unit uses a microphone and a voltage comparator to provide a digital output that changes state when a sound exceeds a certain threshold. Sensitivity can be adjusted using the built-in voltage meter on the board. Technical details: unit model: KY-038 operating voltage: 3.3 volts to 5 volts output type: digital