If I wanted to fill up a large bucket with the Particle Photon, and wanted to keep track of the time it took for the water to pass certain points int he bucket, how accurately would I be able to do this?
What I am looking for is just an accurate “timer” function. Does this exist in the standard libraries of the Photon?
I think there are too many variables to do an accurate timed pour, I would suggest using a sensor to gauge the fill levels.
Depending on your waterflow you can use millis() (for millisecond precission) or Time.now() (for seconds) or both together in conjunction with interrupts to get the trigger with a ~5µs latency - good enough?