Apraksts
KY-038 Skaņas sensora modulis
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KY-038 Microphone sound sensor module
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
Pins:
AO: analog output sensor
GND: ground
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.
