I am designing an interactive light installation under a bridge...
Let's assume a simple configuration of 16 overhead spotlights arranged in a 4 x 4 square grid. If someone walks under a specific light it should turn on.
Considering that I'd need 16 sensors, one for each light, I am out of luck with the 8 analog/digital inputs. I assume I'd need to utilize the RS232/485 port.
Any hints how to get this whole thing started hardware and software wise?
Thank you for your help in advance!
You can keep adding inputs. Get one of these and with the onboard inputs you'll have 16.
Thank you for all the very helpful replies and pointing me to the MRIO 8/0.
Any recommendations about proximity sensors or similar?
Not knowing the specifics of your project I can only point you in the direction of where I would start looking. https://www.automationdirect.com/adc/shopping/catalog/sensors_-z-_encoders
The preliminary sensor setup is very simple:
16 sensors mounted on a 19ft ceiling in a 4 x 4 grid spaced 2ft apart (see sketch)