[gateorade]

This is basically the case for any digitally controlled effector/sensor. Need a serial bus to get data from some ADCs? An FPGA can do N buses in parallel. Need a PWM to control a motor? An FPGA can do N PWMs in parallel.

The problem of course is that the effector/sensor is usually still a physical object that has a cost to replicate, even though the control circuitry in the FPGA is free to replicate. As is the case with ultrasonic transducers.