Great Sensors for Project. Having Fun With Electronics and Programming!

Description:

The Sound Detector is based on a microphone and a power amplifier. It can be used for detecting the sound strength of the environment.
This sound sensor gets signal by both digital and analog output.
"AO" outputs real-time voltage signal of the microphone.
"DO" outputs low and high lever signal when the sound intensity reaches a threshold.
Sensitivity is adjustable by adjusting the potentiometer.
PCB-mounted LEDs indicate the power and compactor output.

Wiring Instructions:
+ ---- DC 3.3V-5.5V
G ---- Grounding
AO ---- Analog Output
DO ---- Digital Output

Specification:
Model: KY-037
Working Voltage: DC 3.3V-5.5V
Nominal Frequency: 40KHz
PCB Size: 35 x 15mm / 1.38" x 0.59" (L*W)
Fixed Hole Diameter: 3mm

Package Includes:
5 x Sound Detection Sensor Module