Analogue and digital sound sensor KY037

Adjustable sound sensor with microphone, with this sensor it is possible to measure the sound intensity of the environment around you, varying the state of its digital output if a sound signal is detected.

The module has a microphone and can be used in various systems. The detection limit can be adjusted through the trimmer (Potentiometer - Variable Resistance) present in the sensor that will regulate the digital output D0. However, to have a better resolution it is possible to use the analog output A0 and connect to an AD converter, of some microcontroller, Arduino among other programming cards.

Main features:

• Model: KY-037
• DC operating voltage: 5V (VDC)
• Comparator LM393
• Adjustable sensitivity via potentiometer
• Digital and analog output
• Voltage indicator LED
• LED indicator for digital output
• AO: Analog output
• GND: Earth
• C: Digital output
• VCC: Voltage