I am working for a local fire department at the moment for a light display. They want their lights to trigger a specific sequence when they receive a fire call.
I am making a sequence for when the trucks pull out of the garage bay. I purchased an Input pup to make this possible. I am able to use a single push button to trigger the sequence.
Now my real question. I want to use some sort of invisible laser beam (like the safety lasers on garage doors, in case something is in the way it reopens the door). I want to put them high enough that if a truck breaks the beam it triggers the pup. However, I am assuming that the lasers require some power and may be more than the 9V that the pup can handle. Does anyone know how I can achieve this or have some other laser that would work? I’m sure someone has tried to do similar in their display.
Thank you all in advance.