Hi
I am currently working in a system that has a connector, for security reasons it would be great to know when the plug is attached, i.e. detect connection.
I have been thinking I found some ideas, the first simple and expensive is to add 2 pins to the plugs, short this pins and when connected we have a nice jumper, like I said is expensive considering my current plug.
The other solutions are not feasible ( with a magnetic switch, metal shell shorted with one pin... etc)
So, how the guys from computers do with the headphones plugs, to switch between speakers and headphones? same in iPods, Cellphones etc.
Any ideas? Do you have some experience in this kid of problems? Thank you!