Hardware specific questions

Store Forums Lumazoid General Discussion Hardware specific questions

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  • #11151
    Drizzt321
    Participant

    Which exactly CPU is it? Reason I ask, is I’m considering taking the PCB files and making some changes to try and make it smaller to fit my needs better. If I do real carefully I should be able to use a very fine tip to solder the leads on for the CPU.

    I’m also contemplating trying to add a single 7-segment character display, or https://www.adafruit.com/product/870 matrix display to make for easier visual reference for the settings. Or even just a few LEDs to give a single number (yay binary!) I can never remember which setting it’s on, and rotating through everything and trying to keep track of the LEDs that come on for just a quick flash is a PITA for me.

    BTW, what are those 4 through holes just above R9? They don’t seem to be documented anywhere.

    #11152
    Michael
    Keymaster

    It’s not a CPU, it’s a microcontroller. ATmega328

    The pads next to the buttons are breakout pads for those buttons. So you can connect external buttons.

    #11153
    Drizzt321
    Participant

    Yes yes, CPU vs Microcontroller, I get it. I need to be a bit more precise in my terminology.

    So https://www.microchip.com/wwwproducts/en/ATmega328? Which package/part #? I’m going to guess the ATMEGA328-AU as per https://www.mouser.com/Search/Refine?Keyword=ATMEGA328 pictures.

    #11171
    Michael
    Keymaster

    Yes, it is the ATMEGA328-AU.

    #11172
    Drizzt321
    Participant

    Gotcha, thanks!

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