I'm using this preamp circuit for my electret microphone and then feeding the output to A0 analog pin of an arduino uno board. For some reason my serial monitor in the arduino ide shows the output at a constant 130 no matter how much sound I make in front of the microphone.
This is the circuit I'm implementing. https://www.instructables.com/How-to-Deal-with-Noisy-Neighbors/ my connections for the pre-amp part:- orange wire for output, connected to A0 pin of arduino uno. brown wire is the ground pin from uno, red wire is 5v pin from uno. electret mic green wire is +ve, white wire is -ve. Thing is, I've implemented the same pre-amp circuit as the dude above, but for some reason the sound doesn't get picked up. My preamp ckt below.