Hello all! Trying to read a Borg Warner turbo rpm sensor on a digital pin but ran into trouble due to the voltage provided by the sensor, in basic it's spitting out a square 50% wave from 0 to + 5V at a maximum frequency of 6Hz buuuuut it's not 5V.
In low rpm it starts as 0.1V and at 200Krpm it's 4.5V so with the treshold of a digital pin it doesn't read below 80Krpm.
Does anyone knows a minimalistic way of converting into a clean 0-5V wave?
Greetings Jaap