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  • DIGITAL INPUTS PROPER USAGE

  • jathanas

    Member
    February 27, 2019 at 9:12 pm

    Hi, i have two simple questions about the proper usage of the digital input of Controllino mini powered with a 12V DC power supply.

    1) If i want to use the digital input of A0 on the screw terminal i just connect the 12V of the power supply straight to the A0 on the screw terminal in series with a switch but without a protection or a pulldown resistor.

    2) If i want to use the digital input of A0 on the pin header i just connect the 5V of the pinheader straight to the A0 pin on the pinheader in series with a switch but without a protection or a pulldown resistor.

    Are those two simple connections considered proper usage of the controllino?

  • mr-controllino

    Administrator
    March 5, 2019 at 1:54 pm

    Hello,

    Yes, this is correct!

    The internal voltage divider is already puling the input down. So, there is no need for an external pulldown.

    regards

    Marco

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Original Post
0 of 0 posts June 2018
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