That's completely acceptable as long as you learn to provide relevant details in your questions and are able to take some constructive criticism.This was my first request for design help on a forum, and I just didn't slow down enough to consider everything involved.
I was trolled by a number of members when I first started on this site. I didn't even know what trolling was until I came to this site. I developed thicker skin and started ignoring the people who were here for purposes other than trying to be helpful. If you come across some not-so-useful personalities, the ignore feature on this site can make your experience more enjoyable.
There are also people who post "dumb" questions and act like they don't understand the responses they get. After it becomes clear what their intent is, they get put on my ignore list.
Sounds like more trouble than it's worth.I had wondered if I could use a sensitive Hall effect device and a small inductor to generate enough magnetic field to trigger it.