- Joined Dec 4, 2020
After hours of combing through the thousands of irrelevant results Google came up with, I give up- How would I add indication LEDs to two parallel circuits (referred to as A and B, respectively, hereafter), of which either A is live B is off, A is off B is live, or A and B are off. The idea is to indicate the live status of either A or B via an LED for each. Where I run into issues is the need to use the single supplied switch- which is a latching ON/OFF/ON. For added complexity, this is a circuit in which the voltage varies from 1V-30V and current varies from 1mA-5A. Also potentially useful info: A and B are jacks, so the circuits are open until leads are connected with a load.