countio and debounce

[sgalway]

I am having trouble counting rotations of an anemometer. I am trying to use the countio library but I can't seem to figure out how to debounce the signal before counting. I am getting 4-5 "counts" every time the sensor passes by. A search of this forum comes up with EXTINT, but that doesn't seem to exist anymore.

[Franklin97355]

What are you using for the micro and how fast do the pulses come? I have used a kluge where I ignore pulses if they are quicker than the fastest possible rate of spin.

[sgalway]

I am using a pyportal Titano. Anemometer pulse frequency is on the magnitude of 10-20Hz. I've thought about doing something similar, but I can't figure out how do it asynchronously. I need the count to accumulate despite my loop pausing.

[Franklin97355]

I used millis in Arduino and checked if the second trip is longer than a switch bounce (milliseconds)

[danhalbert]

A capacitor could also be used to debounce the signal.