ee-diary

How to detect sound levels with Arduino

In the world of DIY electronics, there's a certain joy that comes from building something functional from scratch. Whether it's a simple LED blinker or a complex robotics project, every step along the way brings a sense of accomplishment. On…

How ky-038 sound sensor works

The KY-038 is a sound sensor module that can be used to detect changes in ambient noise levels. It consists of a microphone, amplifier, and comparator circuit, all of which work together to produce a digital output signal that can be read by a mic…