Smart Systems

Microphone

A sound sensor was tested before I get my own one. When blow air onto the microphone, Arduino could read analog value from it. The problem I experienced was when I used the Serial.println() function to see the analog values from sound sensor, the value was extremely unstable. After research online, a small capacitor could help improve the stability. But after a capacitor was added, the value still kept jumping between 0 and the reading value. After went through a series of experimenting, I finally found that the analog value will be more stable and accurate if the Serial.println() function is disable. Tried the sound sensor with the buttons and pot, they worked fine together, but there were still some bugs I have to solve. It still play a random sound when one of the button is being held but without any analog value from sound sensor. Now, I am looking to make prototype of the instrument without the breadboard.