@amiregelz If it's on a computer, then SU. If not, Electrical Engineering sounds like the best option so far. If you don't think so, you can head to Area 51 to create a new site
Worst case scenario, if it is off topic, it can either be migrated, or you know for next time. Check out stackexchange.com for a full list of the sites they have
To tell you the truth, I don't see a site that would fit that
Hi, what happens to the points I put up for a bounty if they aren't assigned? I created a 150 point bounty (I think it was that much) on superuser.com/questions/490843/… about 2 weeks ago. The bounty period expired and as far as I can tell none of the answers got the bounty and I didn't get it back.