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

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251–260 of 1001 posts

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

#251
It used to run kplex to bridge NMEA data (wind speed, depth soundings, boat speed, etc.) from our SeaTalk network to TCP/IP. Now a GL-AR300M does the job though, along with all the Wifi/GSM routing, saving one computer and power (when running strictly off solar and batteries, this matters).

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

#253
post #198

I have 4 running at home as servers: - an OctoPi server, which allows me to manage my 3d printer remotely. - a VPN - a Plex Server, serving media to my TVs and phone. I just ordered the new 4GB Pi4 to replace this one. I’l probably re-purpose it as an OctoPi-like box for managing a CNC. - a seldom-used retro gaming box, that’s actually been mostly by a hacked Playstation Classic

Would you mind going into your Plex server setup a bit? I tried using a Pi before but could barely get it to trasncode anything, and playback was miserable. Now I'm using a Kimsufi server, but I'd prefer to have a locally running server (that isn't my main PC) as my Plex media server

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

#254

Earlier quoted context omitted.

FYI - I had to buy a Pi 3B+ to run Unifi Controller, the forum posts said the Zero W didn't have enough juice.

Boo! Might have to reconsider then. I used the Pi Zero W for FullPageOS for a while but performance was absolutely terrible, recently switched it out with the Raspberry Pi 3. The Pi Zero really has an awesome form factor, but many of the projects I come up with either require more performance (i.e. needing a Rasperry Pi 3) or are simply better suited for a microcontroller such an ESP32 or ESP8266.

I guess it depends, but having the unifi controller on wifi isn't always the best of idea. If you misconfigure the wifi or just change the ssid/password the controller looses access as the settings are applied. And now you can't even connect to the controller to fix it.

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

#256
I'm kinda concerned by the number of mentions here of using the Pi to run OctoPrint (I think that's right?) to remotely admin and monitor a 3D printer...

I've always been of the mind that a 3D printer should never be left physically unattended - even with monitoring (via camera and such), as they can potentially start a fire if something goes wrong (failed print spewing random filament?).

Is this a wrong viewpoint? Are there certain failsafes put into place to make the possibility of a fire non-existent?

I can think of a few failsafes (fire/smoke detector to shut things down, encasing the system inside a fireproof cabinet, perhaps with some kind of instant extinguisher system, filament/jam monitoring sensors) - are they enough?

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

#257
post #54

The coffee machine in our office is controlled by blockchain NFTs and a Raspberry Pi: Once authenticated, an owner of the NFT can select their coffee type on their phone which then signals the Raspberry Pi to make whatever coffee type was selected by jumping the contacts that used to be pressed by the machine's buttons (which have been removed). It's a cool gimmick, fun to show off to visitors, gives us a nice record…

Is it HTCPCP-enabled? Inquiring minds want to know!

Hopefully including HTTP Error 418 too!

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

#260

A security camera NVR. (Help wanted! I'm developing it here: https://github.com/scottlamb/moonfire-nvr I'm proud of the design but it's still far from a polished system that does everything a reasonable person would expect. Lots of opportunities to extend it if you're looking for a fun Rust + Javascript project.) A Raspberry Pi 2 will run a working setup; the new Raspberry Pi 4 should be a lot more pleasant in terms…

Moonfire NVR looks like an amazing project that I can learn a lot from for an entirely different project with streams and stuff that I’m interested in and have zero experience with!

Also great that it’s written in rust

Is there any way to test it without rpi/camera?

If I understand the readme correctly, you store frames individually (as jpegs?) on disk and construct flexible mp4 streams on the fly. Naturally I would have assumed that this would be inefficient so I’m wondering if I got this right, not very familiar with stream/video/codec tech

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