Comment on This Asus PC case monitors your dust filter so you don't have to
jarfil@beehaw.org 7 months agoGigabyte uses air pressure sensors (totally “not a microphone”) to measure noise levels (nope, not a microphone)… but what you’d probably want, is some sort of airflow sensor (or “totally not a fan wired in reverse”)… only then the sensor would also get dusty and lose precision over time. The IR may seem like overkill at first, but actually it looks like the better solution in this… case (pun intended).
Kidplayer_666@lemm.ee 7 months ago
Wouldn’t the pressure sensors give out wrong readings if the case was put somewhere with bad airflow
jarfil@beehaw.org 7 months ago
Airflow is what you want to know; after all, fans are there to cause airflow.
The problem with barometric pressure sensors, is that they’d measure static pressure, which from a single sensor, is not informative (changes with the weather, depends on altitude, etc.).
A case could use the difference between 2 sensors: outside/intake, vs. inside. If there was a pressure differential buildup, it would indicate a blocked output, while no difference in pressure, would indicate a blocked intake.
That’s still 2 sensors instead of 1, with some processing and possibly calibration going on… but could be interesting.