This is probably simple, but I'm not an ee. A closet with 4 doors, each has a normally-closed pushbutton connected to 5V source on one end and (to the same) 5V relay which controls the 220V (AC) of the room lights. So the doors connected to the relay directly, not through a digital relay driver.
The problem : when either door closed, the door physically bounces, regardless of the pushbutton's electrical bounce.
And so I need to do around 0.75 second debouncing when the door gets closed (switch gets open), most circuits i see involves push-up/down resistors into TTL logic, which means i'll need to attach a relay-driver afterwards.. and this is what i'm trying to avoid.
How can this be done with passive parts ?
Thanks in advance.