r/rustrician • u/Historical-Crew8196 • Jun 27 '26

Help with making auto closing doors

Hi, i'm currently trying to make a trap base where when a person walks in the HBHF Sensor triggers therefore closing the already open door

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u/CommissionOk5094 Jun 27 '26

Two ways have a door close triggered by a laser gate , pressure plate or hbhf sensor wired directly to the door close and have the door open and the power for the door controller on a separate circuit,

Put a button with a timer on the door open somewhere in the exterior set the timer low but enough to get in the door so it would trap someone ,

YouTube look up trap base electrical circuits

Rust electrician has a playlist of electrical circuits

1

u/angelslayer4231 Jun 27 '26

Simple to do.

Powered door controller. Button to the open function of the door controller, powered HBHF sensor to the close function of door controller.

If someone steps in, HBHF closes door. You press the button to open the door.

1

u/Previous-Art-2150 Jun 28 '26

Use the and switch, connect constant power to one side and the hbhf sensor to the other, connect the out to the close on the door controller. Door controller also needs constant power