Features:

• Operating Voltage: 3.3 ~ 5V DC
• Features wide range voltage comparator LM393
• Adjustable sensitivity
• Signal output indicator with the retaining bolt hole, convenient installation
• Output from digital switch output (0 and 1 high and low level)
• Signal output indication
• Single-channel signal output
• The output effective signal is a low-level
• When there is sound, outputs low level and the signal light

Pin Description:

• VCC:2.3V ~ 5.3V
• GND:Power Supply Ground
• AOUT:MCU.IO(analog output)
• DOUT:MCU.IO(digital output)

Applications:

• Motor speed measurement
• Object position detection
• Smart car
• Electronic bricks