KY-037 high-sensitivity sound sensor for quiet sounds

KY-037 provides an analogue microphone output (AO) and a digital threshold output (DO). The potentiometer sets the DO threshold; it does not calibrate sound pressure in dB. Supply voltage is not the same as a safe GPIO level: check AO and DO before connection to a 3.3V ADC/GPIO and use voltage or level conversion as needed. Raspberry Pi computers require an external ADC for AO.

KY-037 Sound Sensor / LM393 Electret Microphone Module

A compact, efficient sound sensor for quiet environments! 

This compact sound sensor suits quiet environments. Use it to monitor sound levels or create a clap-operated light switch. Its built-in electret microphone and LM393 comparator make it straightforward to integrate into sound projects. It is suitable for sound sensing with microcontrollersand a wide range of sound-measurement projects.

This sensor has a smaller sibling suited to loud sounds.

The module is easy to use and offers these features:

• Built-in 8mm electret microphone with extra-high sensitivity
• Analogue output lets a microcontroller read the sensor directly
• A built-in LM393 comparator automatically switches the digital output when the sensor level exceeds the threshold set with the potentiometer

Technical specifications

What's included?

• KY-037 sound sensor for quiet sounds
  

Warranty and shipping

We do our best to test all electronics before sending them to you.

This helps us deliver reliable products and saves you unnecessary trouble during development. Faults can occur, although we encounter them very rarely. If you have a problem with the equipment you ordered, you can always contact us, and we'll gladly help you resolve it. 

We dispatch from Aarhus to Denmark and Sweden. Shipping options and prices are shown at checkout. Delivery time depends on availability, destination and shipping method; contact us before ordering if you need an item by a specific date.