i want to control 5 led bulbs using just 2 wires .depending on some condition i want to turn a led with a specific color from 5 led set and only one led should on at a time.
here is a small explanation .
in my house we use water tank .if water level is max i want to show it by turning on specific color led.if water level is fine ..weak.. i want to show another color led on the motor switch .but distance between motor switch and tank is very big so i can't really use 6 wires for control 5 leds.
so what I'm asking is is it possible to control 5 leds just using 2 wires ? i'm thinking about pulse technique.for example if level is max i send a specific pulse/bit pattern so using small circuit determine which led should turn on. but for that i think i need 3 wires( 3 wire is also ok but led amount can be vary -10 led may be) .what is the cheapest and easiest way to do this ??i'm really new to electronics. if i can do this without using bit pattern it's lot better because detecting bit patterns quite complex to me. thanks