Microphone Sensor AVR PIC High Sensitivity Sound Detection Module Arduino Features: High Quality For sound detection module has two outputs: 1. AO, analog output, real-time output voltage signal of the microphone 2. DO, when the sound intensity reaches a certain threshold, the output high and low signal Module features: 1. There is a mounting screw hole 3mm 2. The use 5v DC power supply 3. With https://elecena.pl/product/16454680/microphone-sensor-sound-detection-module 2020-04-14 https://elecena.pl/product/16454680/microphone-sensor-sound-detection-module 2020-09-01 https://elecena.pl/product/16454680/microphone-sensor-sound-detection-module 2021-03-02 https://elecena.pl/product/16454680/microphone-sensor-sound-detection-module 2025-07-09