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Thread: Are D0 and D1 used on a Teensy 4.1

  1. #1
    Junior Member
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    Are D0 and D1 used on a Teensy 4.1

    Are the D0 and D1 pins available for use on a Teensy 4.1 or are they dedicated?

  2. #2
    Senior Member
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    They aren't dedicated like those on an Arduino. The Serial interface goes directly through USB and does not use pins 0 and 1. Those pins can be treated just like other digital pins. They are also the Serial1 device if you want to use it.

    Pete

  3. #3
    Senior Member PaulStoffregen's Avatar
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    They're regular pins, not tied to the USB in any way (as they are on Arduino Uno, Mega, Nano).

  4. #4
    Junior Member
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    Thanks for reply!

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