Arduino_KY-038_Microphone_sound_sensor_module

Arduino KY-038 Microphone sound sensor module

My KY-038 module has two leds: a power led and, near the pot meter to set the sensitivity a led indicating if a signal is detected.

Hardware

• D0 (Digital Signal)   Arduino D3 Only needed for "Digital script"
• +                                 +5V
• G                                 GND
• A0 (Analog Signal ) Arduino A0   Only needed for Analog script"

Analog

Digital

More info

• http://henrysbench.capnfatz.com/henrys-bench/arduino-sound-detection-sensor-tutorial-and-user-manual/