There is a big engine for which I would like to make an RPM Meter with Arduinio... There ia a MAGNETIC PICKUP SENSOR already installed over the flywheel of the engine which has several teeth.. I would like to connect this magnetic sensor to the Arduino's interrupt pin..Please tell me how do I conn…

How to connect the Magnetic Sensor with arduino for my Tachometer Project

LarryD April 29, 2014, 2:20pm 13

IMO use a LM339.
May have to play with 20meg feed back resistor for your particular pick up coil.

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