Kind of a fringe question here, but could not find anything concrete so figured I would throw it to this great community.
I have 2 DS80 flow meters (Hall Effect Sensor type flow meters - nothing special about them except they are bigger for 3" pipes), and they work fine, wired, code, etc and get decent readings and all that so no issues there.
During my bench prototyping, I noticed that sometimes, in spite of no "flow", I would detect "pulses" from the sensor. Because they are sitting on a workbench, with no pipes connected, I assume this is either:
- Random transient voltage, maybe bleed from its neighbors in the wiring or what not
- Maybe the magnet on one fin is parked at the sensor and vibration is causing it to bounce
The second one is what it is, but the first one feels like something I could iron out. The question is, should I have a cap/resistor/something on the data line from the sensor to smooth out readings? Because it is PWM I do not know what to put there that wouldn't interfere with the signal itself (if anything). Absolutely NOT critical, as I said it works fine under load and I do not need hyper-accurate readings. More of a "could I do this better" question.
