I have follow this guide many times to create a standalone arduino.http://www.instructables.com/id/Standalone-Arduino-ATMega-chip-on-breadboard/?ALLSTEPS
It works very good.
That I do is that I start with the guide to create a basic start so my atmega328 have power and working, after that I start add the button and LED and that.
Now I have a little problem, I was thinking about make a LANC remote with this guidehttp://controlyourcamera.blogspot.se/2011/02/arduino-powered-lanc-remote.html
but that have connect the power to Arduino VIN?
My question is that instead to connect all my positive (+) to a power source like I do in my first guide, shall I connect them to the +5 in the ring like a VIN and the ground to the ring ground in the plug?
I mean is arduino VIN similar to the VCC, AREF and AVCC that I connect to my power source?
I can guess that ground go to the ground but the other I'm not sure??
I hope someone can tell me if that is right or wrong?