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  1. M

    Unintentional HIGH when uploading code to the Teensy 4.1

    I could observe the same graph on my own oscilloscope when pressing the Program Button as in post#15 by mjs. And I also get the same graphs from post#13 - which means that there is no voltage applied, when the Teensy is started up without trying to upload code. Based of that, I could get a way...
  2. M

    Unintentional HIGH when uploading code to the Teensy 4.1

    I didn't test this so far, as the pcb is already finished and I didn't want to wire any resistors externally. I have to admit that I was hoping for an easy software-ish way out of the situation. However, I'll try the solution with a pulldown over the course of this morning and I will share my...
  3. M

    Unintentional HIGH when uploading code to the Teensy 4.1

    After updating both the Arduino IDE and TeensyDuino there have unfortunately been no changes. In my case Pin #25 still seems to be affected. When uploading the code to the Teensy, there was a note saying that the bootloader had been updated - so I'm pretty sure that it is now on V 1.07. I kept...
  4. M

    Unintentional HIGH when uploading code to the Teensy 4.1

    First off - A big thank you for your answers. It's great to know that this is not a new problem and there is a kind of solution to get rid of the problem! I'm sorry for taking my time to respond. I'm rather new to programming and I honestly didn't know that this could be a problem. Looking back...
  5. M

    Unintentional HIGH when uploading code to the Teensy 4.1

    While working on the project for my Bachelor's Degree in Mechanical Engineering I've come along a strange little problem and i'd like to ask if the following behaviour is happening to anyone else and how to deal with it. Whenever I'm uploading code onto my Teensy 4.1, there obviously is a kind...
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