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Thread: Teensy 4.0: Access to second LED?

  1. #1
    Junior Member
    Join Date
    Oct 2017

    Teensy 4.0: Access to second LED?

    When Teensy 4.0 is going to be programmed through Teensyduino, you can see a little red LED flickering.

    Ist it possible to control this LED by my own code, like the other LED on pin 13?

  2. #2
    Senior Member PaulStoffregen's Avatar
    Join Date
    Nov 2012
    No, sorry, that red LED is not connected to any pin on the main chip.

    Here's the schematic.

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