A module with a microphone that detects sound. It is powered with the voltage in the range from 3.3 to 5 V. It has two outputs: analog - enabling the measurement of the signal intensity and digital - changing the state after exceeding the set level. Pinout: A0 Analog signal output. G System weight. + Supply voltage 5 V. D0 Digital signal output. Specification: - Supply voltage: 3.3 V to 5 V - Digital or analog output signal - One mounting hole with a diameter of 3 mm - Built-in potentiometer to set the trigger level - Frequency range: 50 Hz to 20 kHz - Impedance: 2.2 kΩ - Sensitivity: from 48 dB to 66 dB - Working temperature: -40 ° C to 85 ° C - Working humidity: 30% to 90% - Storage temperature: -5 ° C to 30 ° C - Storage humidity: 20% to 75% - Module dimensions: 43 x 15 x 10 mm https://elecena.pl/product/22604890/adjustable-sound-sensor-module-microphone-arduino 2023-02-22 https://elecena.pl/product/22604890/adjustable-sound-sensor-module-microphone-arduino 2025-10-29