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I have bought the Brushless DC-Flat Motors Series 2610 and Pin number 6 is called FG which is defined as frequency output. I have plugged this pin into the Arduino in A0 and I have tried displaying the outputs. The outputs is either 0 or 1023 and I am not sure how I can convert this to angular speed or RPM. Any help will be appreciated

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  • Without looking at the motor, I'm pretty sure, that this is not an analog output. Almost certainly it is a digital pulse output. So it will output a specific number of pulses per revolution of the motor (Thus you can get the RPM by counting the pulses per time interval). You get 0 and 1023, because you are just reading the HIGH and LOW signal parts of the pulsed signal.
    – chrisl
    Commented Mar 19, 2021 at 21:35
  • That will be a hall effect output giving you a square wave, the frequency equal to (or proportional to) the RPM.
    – Majenko
    Commented Mar 19, 2021 at 21:59
  • in the manual it says "6 lines per revolution" does this mean that I need to observe 6 ones in a row for a revolution to be considered? or is a pulse a 0 followed by a 1 then a 0. Sorry if I'm asking basic questions Commented Mar 19, 2021 at 22:00

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