Microphone Noise Sensor KY-037

With this microphone, equipped with an amplifier, your Arduino can detect ambient noises. You could, for example, build a clap switch or evaluate knocking signals with your Arduino. The module has both an analog and a digital output. The switching threshold for the digital output can be adjusted via the rotary potentiometer. If the sensor is read out analogously, the base value for the analog output is set via the potentiometer.

Connections:

Operating Display:

1. LED1 = Operating voltage is present
2. LED2 = Status of digital output D0

Technical Details:

• Amplifier: LM398
  
• Outputs: 1x Analog + 1x Digital
  
• LED1 Operating Display
  
• LED2 Digital Output
  
• Operating Voltage: 3.3 to 5V
  
• Size: 42 x 15 x 14mm
  
• Weight: 4g
  

Delivery Contents:

• 1x Microphone Noise Sensor KY-037