ANMBEST 5PCS Microphone Sensor Module LM393 High Sensitivity Sound Detection Board for Arduino RPi AVR PIC (Upgraded Version)

Main chip: LM393, Electret condenser microphone Operating voltage:4V – 6V Output Form: Digital output (0 or 1) PCB Size: 32.5 mm×16.4 mm×15 mm/ 1.28?×0.65?×0.59? Output Pins: +5V: connect 5V voltage GND: connect GND OUT: signal output Instructions: +5V is connected to 5V voltage (can be directly connected to 5V MCU), GND is connected to GND, and the power indicator will be on. Place the module in a quiet environment, adjust the blue potentiometer on the board until the switch indicator on the board is on, then trim back the potentiometer until the switch indicator is off, then generate a sound (such as a high-five) on the sensor accessory, The switch indicator light will be lit again. When sound intensity exceed a certain threshold, produces low(Digital output 0) signal and light will be off, Otherwise output high(Digital output 1) signal and light will be bright. The module digital output OUT can be directly connected to the MCU, through the MCU. The high and low levels are detected, thereby detecting the sound of the environment, so that a voice switch can be formed. Package includes: 5x Sound Detection Sensor Module