Sound Sensor Module – KY-037 / KY-038

Sound detection modules with an electret microphone and adjustable threshold – trigger actions on claps, knocks or loud noises.

Specifications

• Big version (KY-037): larger, more sensitive microphone
• Small version (KY-038): compact microphone
• Outputs: analog and digital (adjustable threshold)
• Supply: 3.3–5V