[beekerc]

I saw a similar post in this area, but my requirements are different, so the proposed answers there don't really help me, so this is not a re-hash of that thread.
I don't want wireless, and I need the displays in multiple locations, so the ready made solution is out.
I don't want to drive a 110v light bulb, but low voltage LED's instead, so the very simple A/C circuit won't work either.

So, I'm looking to design a circuit that will tell me, via two (separate red and green, not bi-color) LED. I had some surplus magnetic sensor switches (two wire, open or closed based on magnet proximity to contact) so I had them mounted to the garage and floor.

So here's what I need, if the garage door is open and the sensor switch is in the open or "break" position, I want the red LED to light up. If the garage door is closed and the sensor is in the closed or "make" position, I want the green LED to light up.

There will be three sets of these red/green LED pairs around the house.
I plan to use a A/C wall-wart to power this project with (most likely) a 5v/DC output of around 300ma (I can't think this will need that much power). Or should I use lower voltage?

Not sure if this is important or not...
There will be approx 20 to 40 feet between the main circuit and the door sensor.
There will three runs to the LED's will be 10 feet, 20 feet and 40~50 feet.
Copper connecting all this is cat-5e. There is a dedicated cable for each run.

I'm pretty sure this is a very simple design requiring a sensor switch, a power supply, two LED's and one or more transistors. Not sure about diodes and resistors though. It's has been over 25 years since I sat in a digital circuits class, so I'm very rusty on this stuff.

Thanks in advance
Brian