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Ask HN: What do you do with your Raspberry Pi?

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Re: Ask HN: What do you do with your Raspberry Pi?

#901

Post by peteforde »

abrookewood wrote: post #810
peteforde wrote: post #720

I started a company that constructed booths which used 70 accurately sync'd Pis with custom PiCams (fitted with lenses) to take pictures of human subjects, for turning them into avatars like this: https://sketchfab.com/3d-models/pete-swagger-walk-a55d807de1... At the beginning of the project, I'd barely powered up the Pis I had collecting dust in my drawer. By the end, I was a legitimate domain expert in several nich…

The model looks fantastic. Can you share any details on how the project worked or what your company is?

Happy to answer any specific questions about the tech that I'm able to answer. I was not responsible for the proprietary algorithms that generated the avatar.

Re: Ask HN: What do you do with your Raspberry Pi?

#902

Post by ip26 »

sparker72678 wrote: post #576
erklik wrote: post #570

Earlier quoted context omitted.

>2 for weather monitoring (one directly attached to sensors, one that aggregates the data from a few sources and provides reporting) So, I hear people doing this alot. However what exactly does this help with? Like, is the extra information really more useful than just the standard old TV weather forecast?

I do this primarily because I'm a weather geek. I don't _need_ this at all. I do find it interesting to see the differences in temperature (and humidity, etc.) in the microclimate around my house compared to the city and greater metro area. I also use the data to measure the performance of my home's HVAC system. Doing this _does_ require real-time local temperature and humidity data. But again, this is all for fun. I…

How does the data benchmark the HVAC? Or are you actually combining weather + HVAC data to benchmark the home envelope (e.g. insulation)?

Re: Ask HN: What do you do with your Raspberry Pi?

#903

Post by fsargent »

My wife and I went to Paris, and in our AirBnB there was a fantastic little radio. We'd turn it on and listen to Radio FIP and just leave it going. I had forgotten the pleasure of listening to what was on, rather than picking, or worse, skipping songs. I hooked up my raspberry Pi to a small LED header with directional buttons on it. Each button was a different french radio station's m3u stream, output to speakers. It perfectly simulated the radio. I want to put in a delay where it would be time synched with California so the theme is more aligned (slow night time music at lunch is noticeable).

Re: Ask HN: What do you do with your Raspberry Pi?

#904

Post by benj111 »

mlang23 wrote: post #761

As a braille user, I was always fond of "laptops" without a built-in display, simply to save ssace, weight and power. I found a braille display which features a small compartment with micro-USB inside. Used a Pi Zero (these days 0w) to transform that braille display into a full-features Linux laptop. I documented the first version here: https://blind.guru/brlpi.html

Cool.

You make reference to fonts. I assume this isn't font in the traditional sense, ie the look (feel?) of a character.

Re: Ask HN: What do you do with your Raspberry Pi?

#905

Post by tamiral »

dws wrote: post #481
zantana wrote: post #212

I was bullish when I got my first Pi to run Home Assistant (before hass.io), but got discouraged when the sd card failures were gas-lighting me by silently reverting my code changes. That and the lack of hardware clock hampering some of the diagnostic tools I usually use, kept me sticking with VMs on a NUC and a fanless Celeron for Kodi for my main compute uses. In time I have gotten more Pis, but mainly for hardware…

That 'appearing to take writes but reverting on restart' thing drove me nuts. Switched to Samsung Evo Plus SD cards. A year later, all good.

I use the samsung evo plus cards all the time and knock wood haven't had any issues.

Re: Ask HN: What do you do with your Raspberry Pi?

#906

Post by coverclock »

I do embedded, real-time and distributed product development for clients in the commercial, enterprise, aviation, defense, and big science domains. I probably own two dozen Pis of various vintages (and just ordered one of the new Pi 4 models). It's my go-to platform for prototyping, especially for ARM-based systems. I keep one on my LAN just to regression and unit test software that I otherwise developed on an Intel platform. I've also used Pis in devices that are more-or-less permanently deployed, like an NTP server that uses a GPS-disciplined chip-scale cesium atomic clock as its oscillator, and a home-built WWVB clock. I'm currently using three Pis in a Differential GNSS system I'm prototyping.

Re: Ask HN: What do you do with your Raspberry Pi?

#908

Post by Rebelgecko »

KingFelix wrote: post #216
Rebelgecko wrote: post #155

Use a small software defined radio to listen to ADS-B messages (real time airplane telemetry— even with a crappy $10 USB SDR dongle I can sometimes see planes that are 100+ miles away) Host my website (if I ever got any actual traffic it might be a problem, but since 99% of the traffic is me it's ok) Various web scraping/archival tasks

I have been working on my own hosting as well and I wonder where the tipping point is, and if it's in regard to multiple users at once, or just consistent website hits?

For my use case (almost entirely static content), I think the bottleneck is SD card IO. I can handle at least a dozen hits per second no problem though

Re: Ask HN: What do you do with your Raspberry Pi?

#909

Post by riledhel »

heisthefox wrote: post #884

I have a live stream of my bee hives, the pi reads the stream from the camera and frame copies it to the correct format for YouTube live: https://www.youtube.com/channel/UC2E5s3LTU9ObXjiOL7K8KPg/liv...

ffmpeg right? can you elaborate a little more on your setup please?

Re: Ask HN: What do you do with your Raspberry Pi?

#910

Post by lostlogin »

gregsadetsky wrote: post #617

There's a bus station across from my studio / coworking space. I can see people waiting for the bus and doing either: 1) staring into the void 2) looking at their watches 3) desperately glancing in the direction where the bus is coming from. I figured that it'd be nice to let people know when the bus is supposed to be there. So, I installed a 28" display on a monitor stand, installed the stand on my window frame, tur…

Given how this has been received, interspersed HN headlines will have to be added.
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