hello,

I'm working on a project to operate my driveway gate by using satellitedish
motors. for the mechanical part it went ok, but for the electronical part i
have some difficulties. I want to operate my gate by driving over an
detection loop in my driveway, the kind they use by traffic lights. maybee
one of you can give me a hint of how these detection loops are working.

Please advise,
Regards,
Henk Smit.