uxcell Sound Microphone Sensor Detection Module with DO AO for Arduino UNO R3 AVR PIC 5pcs

Great Sensors for Arduino 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