(for various reasons I needed to join a mismatched pair of 18v drill and battery, annoyed at how much fun it was)

  • 1stQ@feddit.org
    link
    fedilink
    English
    arrow-up
    49
    ·
    3 months ago

    I made Franken - Bluetooth speakers. Works better than I thought. One 3rd party ryobi battery is enough for a festival week. The second Bosh lawnmower battery adaptor works fine too.

    • Monument@lemmy.sdf.org
      link
      fedilink
      English
      arrow-up
      7
      ·
      3 months ago

      A couple years ago I got an electric lawnmower super cheap. I only discovered earlier this summer the lawnmower and accompanying weed whacker were being discontinued, and if they break in ways I can’t fix, I’ll have a 60v, 5 amp battery to recycle play with.
      It hasn’t occurred to me to reuse the battery for some other fun project. There will be shenanigans.

    • cashmaggot@piefed.social
      link
      fedilink
      arrow-up
      4
      ·
      3 months ago

      Oh my, you’re who I want to talk to. I have been thinking about making a speaker probably for the opposite reason you did. I want it to be quiet. Quiet as a little mouse. Do you mind guiding me towards your method? Because I am just at the beginnings, but I was wondering if the hardware does the work, or if you get the fixings and then load the hardware up with something open-source. So if you’ve got the time, please let me know!

      Also GJ on the frankenspeaker!

        • cashmaggot@piefed.social
          link
          fedilink
          arrow-up
          2
          ·
          3 months ago

          Ah, I was seeing it as some kind of project in wait and figured I could get some advice from someone who’s been there. I don’t actually have a speaker system of any sort currently. I just wanted to make one for when I did the dishes or take showers. But I really dislike bass so I figured putting together a little 3 watter or something small would be fun and interesting. I also didn’t realize you could just add a resistor to dampen sound but it makes a lot of sense. I haven’t done anything with electronics in a long time. But I figured no better time than today to pick something back up. Ty either way, and keep on keeping on =)

          • MindTraveller@lemmy.ca
            link
            fedilink
            English
            arrow-up
            4
            ·
            edit-2
            3 months ago

            I’m not the person you replied to in the first place, I’m sure they have a lot more to say than my simple advice

            The volume of a sound is its amplitude, which correlates to its kinetic energy. Kinetic energy in a sound comes from the electrical energy in the speaker. You can lower electrical energy with a resistor.

            • cashmaggot@piefed.social
              link
              fedilink
              arrow-up
              1
              ·
              3 months ago

              Ah, snikes - apologies. I was on the end of a long pain bender (doing pretty solid today) and my whole system wasn’t in one piece. I read up on it as soon as you said something and it made sense to me. Although I thought of use case between an actual speaker versus a bluetooth and between the two I said - well one would just charge slower and the other would just receive less power and sound fainter. But yeah, I don’t have an actual speaker system as a whole, in any entity. I just have a laptop, and a monitor with two little tweeters built in. And then my phone. I used to give a hoot about music very much so, and be perhaps not an audiophile, but an enjoyer of volume and levels. But now I just want to listen to something, with a little volume - that I can just turn on when bathing or doing the dishes. Because I realized many moons ago I used to have a boom-box that I’d jam out to in the kitchen which made the entire process more enjoyable as a whole.

              Thanks though, yet again!

      • 1stQ@feddit.org
        link
        fedilink
        English
        arrow-up
        3
        ·
        3 months ago

        I still had a Tda7492p board laying around. That’s a stereo Bluetooth 4.0 board with 2x50W (8-25V).