I’m trying to use an interrupt on an analog pin to read a tachometer on a pc fan but the tachometer output is very oscillatory. I was wondering if there is a way to add hysteresis so that one trigger doesn’t read multiple times.
Hello,
it sound strange. Are you sure you do it right? - Computer Cooling Fan Tachometer Wire – New Screwdriver
BR, Jan
Figured it out. Turns out the period of my PWM signal was too long and the pulses were messing with the output
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