Hello, and thanks for reading. I'm new to Arduino, but not coding. I have a decent understanding of electronics in general, but I don't know how to accomplish the following:
I'd like an Arduino to detect unique devices at a range of approximately 5 meters, +/- 1 meter.
When device A is the only device present, begin counting time.
When device B is the only device present, begin counting time.
When both devices are present, do not count time.
Is there any hardware with a range this narrow? Or is there a better way to start the counters from a hardware perspective?
wvmarle:
You must be one of the very few that is not instantly put off by its price tag!
It's a company project. If it can be done in a more inexpensive way, I'd love to hear it. But my manager will have no qualms signing that expense request.