10Pcs KY-038 Microphone Sound Sensor Module For Arduino
Adopt LM393 main chip
Electric condenser microphone
Features Single channel signal output
Low level output signal used for sound control light
Great module for sound alarm system
Working voltage: DC 4-6V
AO: analog output sensor
VCC: Power supply input range: 3V-24V.
DO: Digital Output (comparator output)
Two red LED indication: POWER and SENSOR. POWER: Power is off. SENSOR: When the microphone senses sound reaches a certain value, this LED light.
10 x Voice sound sensor module
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