Birbla

Join the discussion

Write your take first — we'll ask for email only when you're ready to publish.

Sign in
  • Hacker News
  • It's cool'cause there's a commercial baked into the middle of it.
    by lol8675309
  • I was going to share this with my kid, but then the video turned into an advertisement for "war thunder" a free videogame.. no thanks
    by mkoryak
  • Except it's not really gyroscopes, but gyrometers. The literature is very sloppy with this, but gyroscopes give you an angle, while gyrometers give you an angular velocity.

    Using a gyroscope, you can look at it an hour after starting it, and understand how your orientation changed. Using a gyrometers, you need to continuously integrate the result (including the measurement error) to get your orientation: it's far less precise and tends to drift. Both laser and mems gyrometers suffer from this.

    Besides this, the video is full of slop and likely AI-narrated. Someone mentioned the bacteria bit, I can also mention the weird-looking PCB image, where traces do not connect correctly to the chip.

    by MayeulC
  • I see several comments critical of this video. As someone whose only exposure to gyroscopes was the classic string-driven all-metal toy[0] when I was a kid, is this video helpful for getting a better understanding of how modern ones work, or should I just stick to the wikipedia page on gyrometers?

    [0]: https://www.istockphoto.com/photo/toy-gyroscope-gm172188163-...

    by hatthew
  • A few things about MEMS devices I have not been able to figure out is: 1. Is the sensing/moving structure actually disconnected from the rest of the device? 2. If so, how does it not get stuck to a side? 3. If it isn't disconnected, doesn't the friction from the connection cause an offset in the reading? 4. How do they etch the structure so that it is disconnected from the layer below?
    by Zeetah
  • I recently purchased the S3 Stick from M5Stack.

    It's an ESP32 with:

    - microphone and speaker

    - wifi

    - bluetooth

    - screen

    - two buttons

    - IMU with six dimensions

    all for under $35.

    You can see a video of me using it to control a web based mini plane simulator https://x.com/alexpotato/status/2109782226841870352?s=20

    Wild how cheap this kind of stuff has gotten.

    by alexpotato
  • "Your phone knows its position in space"

    Mistakes happen, but in a video about gyroscopes it's hard to forgive mistaking position and orientation. That's the kind of thing that warrants a delete and re-upload.

    by pinum
  • The gap is so small that a bacteria could easily fit between them. My garage is so small that a bacteria could easily fit inside.
    by mpassman

Explore Birbla archives