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[Dillon] wrote in to tell us about his latest project, an automatic light switch for a the hallway closet in his house. Although this project could probably be done very simply, [Dillon ...

Here is a simple and low cost automatic bathroom light circuit. The light automatically turns on ... Next, arrange the door switch (S1) such that when the door is closed it should be in closed state.

All you need is a spring-loaded jamb switch and some basic carpentry and electrical skills. The automatic light switch is mortised (in a chiseled notch) into the hinge side of the closet doorjamb.

Automatic lighting control saves time for staff, who no longer have to switch lights on and off by hand an ideal solution for situations where operating a light switch by hand could be difficult ...