🛒 Arduino, ESP32 & modules

Sound Sensors

Sound sensor modules (KY-037, KY-038) — a microphone with a comparator that reacts to claps, noise and sound level. For clap-activated lights, sound-activated toys and sound level indicators.

Sound Sensors — buying guide

What is in this category

1 products: Sound Sensor Modules.

How to choose

  • Digital output (DO) — sensitivity set by the potentiometer, gives a sound/no-sound signal.
  • Analog output (AO) — connect to A0 to measure the level and plot it.

Compatibility

3.3V/5V, works directly with Arduino and ESP32; not for speech recognition — that needs a dedicated voice module.

Ordering and delivery

All products are in stock in Baku — price and availability are shown live on each product page. Order on the website or in the mobile app; our operator will contact you to confirm payment and delivery within Baku. Wiring diagrams and code examples are in the edu.embedded.az lessons.