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Thread: Greetings and a first, simple question

  1. #1
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    Greetings and a first, simple question

    Hi All,

    Just received my Teensy 4 and matching rev D audio board. Nephew's Halloween costume, here I come....

    I also bought a pair of the fancy double-insulator headers.

    In the example photo, the audio board is on top and it seems like extra length of the pins above the audio board has been trimmed off.

    Before I do something that's tough to reverse, I'm wondering:

    1. Is it better to put one or the other board on top? Having the Teensy on top gives better access to the reset button, but....
    2. Is there a problem with not trimming the pins above the top board as it seems like they'd be useful for off-board connections?


    Thanks in advance!

    g.

  2. #2
    Senior Member+ defragster's Avatar
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    Much better to plan in advance …

    If you look here Paul did Audio on bottom to allow his comically large heat sink on top: https://forum.pjrc.com/threads/58007...l=1#post219110

    Just below that I have the Audio board on top - and I can use a 0.25" tall heat sink under Audio board.

    If either would be better … can't say … but Paul did build on as linked ...

  3. #3
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    Is a heat sink needed or is this an overclocking thing?

  4. #4
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    Quote Originally Posted by skybrian View Post
    Is a heat sink needed or is this an overclocking thing?
    It shouldn't be. It's just going to make a "robot voice" (vocoder, ...) and perhaps push some prerecorded sounds out a speaker.

    I decided to just jump, here's what I ended up with:

    Click image for larger version. 

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  5. #5
    Senior Member+ defragster's Avatar
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    Quote Originally Posted by skybrian View Post
    Is a heat sink needed or is this an overclocking thing?
    Heat Sink not required unless overclocked. 600-800 Mhz seems to generally be okay. Certainly 600 if not encased with trapped heat should be no trouble.

    I just noted because it isn't precluded - though pushing the PGM button is when Audio on top.

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