No, I guess it's not the track-side toilet lid.
As I lay in bed this morning, I kept thinking about the 200 millisecond pulse; the secondary circuit opens briefly and then closes again. That 200 ms pulse is about the right amount of time to click the e-unit on a locomotive. You want to change direction of a train with the foot switch.
I think I used 400 ms for an experiment I did some time ago. It used relays and an Arduino to detect a stop block using an insulated rail section, cycled through neutral, reverse, and back to neutral, then sat there buzzing with the lights on until some time elapsed. Another pulse and off it went. Totally driven by the microprocessor.
So, now, if I've got this right, we should be able to help. Secrets are for old ladies.
