@Moonman posted:Hi, Leandro!
I see that you have the Atlas switch and motors - perhaps this topic will help if you are using the Atlas controllers
https://ogrforum.ogaugerr.com/...ch-to-atlas-o-switch
Stan2004 and Gunrunnerjohn will be able to help with the circuit to power the leds.
I do not believe the 555 is the solution.
Leandro, I apologize. I see 2 - SC-2 on the power panel.
Will you use those to control the switches?
I am thinking that you are - therefore - you only need the switch position indicator lights - yes?