I'm using a Arduino nano for a project and have an audio mic breakout connected to A1 and a relay that is activated when A2 is turned to high. My mic is consistently giving me readings around 600, but when I turn the relay on (A2 to high) , the readings jump up to around 1500.
I've tried connecting the relay to the digital pins, but have the same problem. For some reason, I don't have any problems when using an Uno board.
Can anyone explain what is happening and how to fix it? Thanks.