Posted in home hacks, Misc Hacks Tagged air, duct, flow, flow meter, HC-SR04, hvac, sensor, time of flight, TOF, ultrasonic ← The Most Straightforward Wind Turbine ...

This was the case for [Rob] and his Porsche 944, which had relied on an old-fashioned mechanical air flow meter (AFM). He decided to replace this with a modern mass air flow (MAF) sensor instead ...