Quote Originally Posted by mistersamsa View Post
Howdy all... way new to this. Running my Nano to the LED using a 1000ma buck puck. As soon as i plug in the batteries (running the 4 X AAA w/ the built in speaker) the LED comes on (solid, without the flicker). Once I hit the button (momentary) the sound and flicker comes on... what am I doing wrong?

So confused
It sounds like you have a bridge somewhere, either at the solder pads, or on the LED itself. Make sure you don't have any solder touching two pads simultaneously.