Recent content by brianlojeck

the door slides vertically, pulled by a steel wire connected to a motor. The cable is attached (on the door side) to the locking mechanism, so whenever it's down, it's locked. unlocking and opening are pretty quick, although I never timed it. With the old mechanism, it would be closed within...

I still think it's the best idea, but the dog can't be counted on to swipe her tag within 10cm of a reader. Is it feasible to extend the range to 3'?

This is not homework, although I am an EE student. If the solution is cool/complex enough, this might become a design project, although it'll most likely end up as something to do over the summer. some time ago, I purchased a motorized doggie door. The dog wore a high frequency sound...