Does anyone have experience with this sound sensor? http://dx.com/p/arduino-microphone-sound-detection-sensor-module-red-135533… I bought two of them and am tring to detect the sound of my snoring to turn on a light to wake/stop my snoring:). Anyway, when I apply 5 volt to the positive and connect the ground two red Led’s on the sensor come on. I assume one if to show that the sensor is receiving power and the other is showing the sensor is " hearing" some sound even in a quiet room. I tried turning the small screw to change the sensativity of the microphone but the second led would not turn off.
- even before I try to get output from the sensor to the arduino shouldn’t the light on the sensor flip on and off with some level of noise???
2). How do you adjust the varister on the sensor?? How many turns/ which direction makes it more or less sensativity.
Sorry I know this stuff is really basic but appreciate your help.