See title. I’m thinking of picking this up to power a pair of speakers but am currently powering my Pi using the GPIO pins. If I install this, will I no longer be able to power the Pi that way? Will I have to use the MicroUSB?

    • t0frOP
      link
      fedilink
      arrow-up
      1
      ·
      9 months ago

      Thanks for the suggestion, unfortunately I don’t have a choice. It comes pre-soldered according to the description. There does seem to be other power and ground pins on the board according to the schematic. I’ll try using those

    • t0frOP
      link
      fedilink
      arrow-up
      1
      ·
      edit-2
      8 months ago

      Yep, I saw that eventually and on the schematic there are traces connecting them to the correct gpio pins on the pi

  • thantik@lemmy.world
    link
    fedilink
    English
    arrow-up
    1
    ·
    edit-2
    9 months ago

    It looks like maybe it comes without the headers preinstalled? If so, you can still power it from there with a stackable header, but you may need to order the stackable header yourself.

    Edit: Nevermind, looks like it has a header preinstalled. Still, you can solder wires directly to the exposed pads on the other side probably.

      • thantik@lemmy.world
        link
        fedilink
        English
        arrow-up
        2
        ·
        edit-2
        9 months ago

        Oh yeah, that would be perfectly fine. It would power both the pi and audio board according to this schematic.

        • t0frOP
          link
          fedilink
          arrow-up
          1
          ·
          9 months ago

          Thanks I think I’ll do that

      • remotelove
        link
        fedilink
        arrow-up
        1
        ·
        edit-2
        9 months ago

        Soldering to those power pads should be fine. You really should keep tabs on your current draw though. If anything, you might need an extra capacitor or two across different points on the main power rails. What may happen, depending on a few different conditions, is that if you get a hard bass hit, your pi might reboot due to lack of power.

        Everything you are using is overbuilt, for the most part. Just be mindful of where the most power is being drawn and if the current source you are pulling off of is regulated or not. (Any LDOs provide clean’ish power rail for the processors and other ICs, so if the supply voltage is correct, tap before LDOs, not after, for a higher current load.)