I've been looking for another small Arduino side project to work on and one day I started looking at scopes and red dot sights. I'd really like to design my next project around a cheap scope or red dot sight, but I don't know what to design.
I've thought about making a simple electromagnetic coil gun, range finder, and sentry gun, but I was wondering if anyone can help me think up a different (preferably simple) Arduino project that incorporates a scope or red dot sight.
Any ideas?