I’m building a device that requires 60+ serial distance sensors spread out a great distance, all communicating back to a central controller.
I could go with existing I2C distance sensors, but my options there are limited, expensive and (possibly) overkill for what I need.
To get data from 60 cheap IR distance sensors into an arduino or similar along a serial line, it seems I will need a microcontroller for each sensor to get its data onto the bus at the right time.
Is this right? Or is there a cheaper/better way to turn 60 dumb sensors into one smart sensor, without requiring 60 wires all coming back into one controller?