If you have one or the other does not matter when you want to build an application. My personal experience, working with the KY-038 and KY-037 microphone sound sensor modules is that you do not have to care about the difference in sensitivity. The experiment that I did was not very complex but showed that the KY-038 has a higher sensitivity. The KY-038 module with a bigger microphone has the highest sensitivity with 5 recognized claps out of 8 for this experiment.įrom the datasheets the KY-037 should have a higher sensitivity compared to the KY-038 sound sensor module.The KY-038 module (red color) recognizes 4 out of 8 claps and has therefore a moderate sensitivity for this experiment.As of May 2021, this issue has been rectified in all relevant parts provided below. The KY-037 module (blue color) recognizes 3 out of 8 claps and has therefore the lowest sensitivity in this experiment. NOTE: The holes in PCBs fabricated using Gerbers generated by Fritzing from many of the early versions of the parts below were too small (0.028'should be 0.038'0.040') to take a standard male pin header.Ive added a Fritzing diagram and some high-res photos and video so that you can. This repository contains parts based on the ESP8266 for the Fritzing application. In the picture, I analyzed in total 8 claps that I made and for each clap I wrote the color of the sound sensor module where the analog sensor values changes significantly. Inside the Arduino IDE go to File -> Examples -> ESP8266 and select the. If there is nearly no change in the analog sensor value, changes are high that the digital sensor values does not change and the clap was not properly recognized. The module uses GPIO2 as output for the Neopixel(s). The module contains everything that is needed to have an ESP8266-01S control a Neopixel strip. If the change is high, the sound sensor recognizes the sound very good. In Chinese web stores a ESP-01S RGB LED Controller Module is sold for less than a dollar (if you buy it without the ESP8266-01). Boost your productivity without blowing your budget. Shipped right to your doorstep within 7 business days world-wide. Everything you need to get your electronics project built. Does your project need PCBs, parts, or stencils Fritzing Fab powered by AISLER has you covered. In this experiment I am interested in the absolute change of the analog signal value during a clap. Your Fritzing sketch as a Powerful Prototype. The sensitivity of the sound sensor is the smallest absolute amount of change that can be detected. From the picture you see that each sensor value changes by my claps.