Use this Microphone Sound Sensor to detect sound above the adjustable threshold. Useful to trigger something to happen whenever a sound is heard! Hook up Power to 5V, Ground to 0V and the output to your circuits. Super simple to use and with an amplifier and microphone right on the board, you don't need anything else to detect sound quickly and easily. Arduino compatible.
Specifications:
Operating Voltage: 5V
Output type: Digital
Chipset: LM393 Comparator (compares the microphone input with the adjustable reference voltage, adjusted via potentiometer onboard)
Pinout:
VCC: 5V
OUT: Digital Output (to microcontroller such as Arduino) High when the sound is louder than the threshold, low when sound is below the threshold.
GND: 0V