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Thread: Custom / DIY Teensy 3.2 board files

  1. #1

    Custom / DIY Teensy 3.2 board files

    I finally got around to write up my experience making a DIY board based on Teensy 3.2: https://github.com/jenschr/Teensy3.2-example

    It has files for Kicad 5 and uses a USB Type C connector. Hope it's useful to others!

  2. #2
    Senior Member blackketter's Avatar
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    Looks great, thanks for posting this!

  3. #3
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    Great to see another example.

    It's good practice to put decoupling capacitors tight to power pins. For example, MCU pins 7&8 are some distance from a capacitor.

  4. #4
    Thank you friend for linking to DIY Teensy 3.2 board files

  5. #5
    Quote Originally Posted by jonr View Post
    MCU pins 7&8 are some distance from a capacitor.
    True. The board works well with this layout, but C4 should certainly be moved to Pin 7 & 8. Oversight on my behalf
    I updated the Kicad files to implement this change.

  6. #6
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    Sorry to sound so picky, but pin 1 of U3 has the same problem. Maybe move C1 down there.

  7. #7
    Quote Originally Posted by jonr View Post
    Sorry to sound so picky, but pin 1 of U3 has the same problem. Maybe move C1 down there.
    Nahh. It's all good feedback. C1 is the 10uF cap on the power input, so I added a new cap next to the MLK20 power pins and posted it back to the Git repo. I'm making a board for a customer using this design right now, so I'm putting it in there as well to test ;-)

    J

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    Thanks for sharing, actually i also like the FeatherWing proto in your Github repo.

  9. #9
    Quote Originally Posted by mstiller View Post
    Thanks for sharing, actually i also like the FeatherWing proto in your Github repo.
    Glad it's of use
    The FeatherWing board is based upon this board so also a confirmed design. It's quite useful with NeoPixels, though Teensy is better for anything with a large amount of pixels.

  10. #10
    Just did an update to these T3.2 files where I added Pin numbering to all pins in the schematic. These will now show as net names as your laying out your board.

    I also added the Kicad files for a custom T3.5 / T3.6 board in this repository https://github.com/jenschr/Teensy3.6-example/ I got the board back today and I've verified it all works as it should. The T3.6 is a 4 layer board, but the BGA is laid out so it's cheap to produce (at least at Eurocircuits which is what I typically use).

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