Activity › Forums › Questions & Troubleshooting › Frequency of MINI PWM outputs › Reply To: Frequency of MINI PWM outputs

  • MikeD

    Member
    August 5, 2022 at 4:02 pm

    Hi Oscar1975

    I think I know what you are trying to ask.

    You can access the digital pins on the maxi and mega through the 26 pin headers just like you would an Arduino except that the Controllino’s pins have ESD protection.

    I think you are asking what is the maximum frequency that the pins can do a digitalWrite function so that you can either drive a stepper directly or send a pulse to a stepper driver?

    An arduino UNO GPIO pin can do a digitalWrite of about 147khz I have found at 5v. If you need to go faster you will have to use fastdigitalWrite or Port manipulation.

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