I have a project where I have a bunch of motion sensors that will be distributed over a distance of 40m. I want to connect them all back to an arduino but I need to know how long a 5V logic signal can travel unbuffered? (the motion sensors are open collector and will simply pull a logic line low when triggered)
I am assuming I will need to put in a buffer circuit at some set interval but I am not sure how frequent.
Each sensor requires 12v power so I will already be runnin 12v to each.
Any tips appreciated!
I am assuming I will need to put in a buffer circuit at some set interval but I am not sure how frequent.
Each sensor requires 12v power so I will already be runnin 12v to each.
Any tips appreciated!