Hi, first time post so please bear with me.
I need a device that will register inside the house whether the garage door is open or closed.
I have no idea how to make this. I have some minor electronics experience and understand simple circuits.
The problem is this. There is mains power (240v) both in the garage and the house, but I cannot connect signal wires between them. The roll up garage door is remote operated, but I cant see the garage / workshop door from the house, so I have to keep walking around to see if its closed or open for the night.
I need something that will be operated by the roll up door's position (I already have a roller microswitch on that) but will signal a couple of leds inside the house so a green light will show closed, a red light will show open.
I've ben told its simple, but the man could not build it so I have come here for help.