I am a complete electronics newbro. I am looking at building a small circuit for a couple of home made modelling projects.
I am following http://www.instructables.com/id/ThrobbingFading-LED-with-555-Timer/step6/Lets-Solder/ which by my estimation has a great step by step to build a hardware driven fade in/out LED circuit.
My only question is what sort of power supply can I run this from? I am looking for as small as possible (but still readily available), I know I can run an LED off a traditional watch battery, would that also work here?
Sorry about the caveman terminology, again I am very new to this.