Onno (VK6FLAB)

Anything and everything Amateur Radio and beyond. Heavily into Open Source and SDR, working on a multi band monitor and transmitter.

#geek #nerd #hamradio VK6FLAB #podcaster #australia #ITProfessional #voiceover #opentowork

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Joined 8 months ago
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Cake day: March 4th, 2024

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  • Things to consider:

    1. Moisture and Humidity.
    2. Heat.
    3. Verification of operation.
    4. Theft.
    5. Hardware reliability.
    6. Cost per image.

    A raspberry pi is not the type of device I’d recommend for this due to its reliance on a microSD card for its os installation. It will likely fail due to many read/write cycles. Replacing the card with a drive causes increased susceptibility to 1 and 2.

    Consider the cost per photo as a metric. In the scheme of building a house, the cost for even a $1k purpose built solution is insignificant.



  • If wishing made it so.

    On Android every single browser links the system font size to the web font size. This does not guarantee that the font is readable on web, just that when you make the system font bigger, the web font size (mostly) increases.

    The system font size is used everywhere, on every UI element in every app, not only the web, on the home screen, the keyboard, etc. etc.

    I don’t want a bigger system font, because it reduces what’s visible on the screen and fundamentally it doesn’t actually fix the web.

    The Google Message app is currently the only one that allows you to pinch zoom and increase/decrease the font size.

    Finally, on desktop you can use Ctrl +/- to change the font size. That’s what I want mobile pinch zoom to use.

    As for zooming in on an image, on desktop, the Ctrl +/- also (depending on the stylesheet) will change the image size. If you need more, you can open the image in a new tab and use Ctrl +/- to zoom. All of this could work exactly the same as on a mobile phone with pinch zoom.

    As I said, if wishing made it so.






  • At one point, before we virtualised everything, I had a custom desk built in an L-shape. Instead of a desk and a return, I had the refurbishment team put together a desk with two desks instead. It gave me two sets of drawers, two computer cubby holes and the gap was too small for the horrible keyboard adjustable shelf that kept hitting your knees, so they replaced it with a fixed surface instead.

    People laughed.

    Colleagues sniggered.

    Then they wanted one too.

    Now I have a mobile lectern with an iMac clamped to it. Height adjustable, wheels, enough space for keyboard, trackpad and USB hub. I move around my office as the mood or light takes me.






  • It’s going to take some time. I’ve been there as have plenty of people who came to me for support when it happened to them.

    While right now you’re thinking of it in terms of loss, you can also celebrate the lightness that comes from not having the data anymore.

    There’s more…

    What was the funniest thing you remember that was in there?

    Now consider that you remember it. You don’t need to check, you remember the things that made that memory funny.

    So, take a deep breath, add it to the list of stupid things you’ve done to date that didn’t kill you and then go and drink a glass of water and go for a walk.

    This too will pass.


  • I don’t know, but I doubt that the frequency response of a mobile phone microphone is either linear or consistent across sound level.

    I don’t even think you could compare two sounds with different frequencies, but I don’t know.

    I suspect that calibration of any such thing would require a whole lot of infrastructure, consider for example the angle of the phone in relation to sound and the impact of holding the phone in how it affects vibration and noise damping.

    You might be able to use a calibrated sound level meter and pair it via Bluetooth with your phone, but I think that’s going to be as close as you might get.

    In the past I’ve tried a wired USB microphone, but the OS isn’t real-time, so the jitter was horrendous. A pi would give you a more consistent result.