Ship Flood Prevention System
The Ship Flood Prevention System works like this:
You must seperate your ship into sections via. watertight doors (hinged door, sliding door, etc.)
Add a meter to every section, and add one of the microcontroller.
Add a light next to the door, and another one facing the opposite way.
Connect everything as stated.
Add OR gates if you want so that both sides of a section can lock the door
If you want, you can add a buzzer (configuration details are in the select tool > this microcontroller) and connect it.
You can change the light mode via the select tool > this microcontroller