Like many noob here,
I have searched around for this answer but I am not entirely sure what it might be referred to and the keywords I use bring me to topics that do not pertain to it.
So I am creating an Arduino control project for a Jeep build I am doing. I am in the process of wiring everything now and want to display some different status' on a small LCD. I am going to have all my headlights and taillights hardwired to a toggle switch and straight to the battery. I do not want to control the lights via the Arduino in case it fails. I would like to know if the lights are on or off to display on the LCD. Is there a way to pull the state of the switch or the state of the lights without interfering with the lights?
side note: this is running off a 12v car battery