Hello friends, I hope you all are doing great. Today, I am going to share the new Bi-Colour LED Library for Proteus . Battery chargers, routers and coffee machines all have a little status light that shows red, then green, then amber. Often that is one LED with just two legs . How can two legs give you three colours? The answer is one of the neatest tricks in the whole LED family, and it needs nothing more than the direction of the current. Updates Bi-Colour LED Library for Proteus Latest version: V1.0 (November 2026, this tutorial) Other component libraries: C945 Transistor · PC817 Optocoupler · Relay Module · Resistor · 5 mm LED · Designer Colour LED · Push Button · Active Buzzer · Electrolytic Capacitor · Ceramic Capacitor · Tantalum Capacitor · Film Capacitor · 1N4007 Diode · Zener Dio ...