Warning light that monitor closed doors - Just Clever Things

Just Clever Things

Installing switches to your doors on your RV so you know they are properly closed

The doors to the storage compartment on my dads RV has locks that are not reliable and I’m asked to do something to make sure they are closed properly.

My plan is to install switches to the doors and connect a light that indicates that the doors are closed

They sell in 5-pack as well

These lamps may serve as indicator light

And this will do the work

Relay version: 12V
Trigger current: 5mA
Load: DC 30V/10A; AC 250V/10A
Using SMD optocoupler isolation
Can be high or low by a jumper setting trigger
With 4 installation holes: 3.1mm hole diameter, 44.5*20.5mm pitch
Module interface:
- DC+: Positive power supply(VCC)
- DC-: Negative power supply(GND)
- IN: Can be high or low level control
Output: NO, COM, NC
LED indicator:
- Green — Power supply
- Red — Relay status

I will connect a 2 wire cable to every switch and gather them at the point were I’m going to install the relay.

Then connect them in series and connect them to the input.

I will connect the lamps to 12v and then to the output of the relay and then to ground.

The lights will be connect when the ignition is on and will turn off when the doors are closed.

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