Description:
KY-037 module consists of a sensitive capacitance microphone for detecting sound and an amplifier circuit. The output of this module is both analog and digital. The digital output acts as a key, and it activates when sound intensity has reached a certain threshold. The sensitivity threshold can be adjusted via the potentiometer on the sensor.
You can use a potentiometer to configure an extreme value for the sonic. If the value exceeds the extreme value, it will send a signal via digital out.
KY-037 Sound detection module has two outputs: AO,DO. KY-037 microphone module provides high sensitive microphone and high sensitivity.
LED1: Shows that the sensor is supplied with voltage
LED2: Shows that a magnetic field was detected
Features:
Model: KY-037
Voltage: 3.3 ~ 5V
Pin pitch: 2.54mm
Microphone type: Capacitive
Frequency range: 100 ~ 10,000 Hz
Size: 44 x 15 x 14mm
Mounting holes: 3mm
High sensitivity
Power indicator
Outputs :
AO: analog output which gives real-time output voltage signal of the microphone.
DO: digital output which when the sound intensity reaches a certain threshold, the output high and low signal.