KY-0030 – ARDUINO MICROPHONE SENSOR MODULE

• 1 AO: sensor analog output;
• 2 GND: ground
• 3 VCC: power input, range: 3V-24V.
• 4 DO: digital value output (comparator output)
• Two road red LED indicator: POWER and SENSOR. POWER: the power indicator will be lit up once powered-on. SENSOR: sensor indicator will be lit up once the sound detected by microphone reaches a certain point.

Code: KY-0030