I have a unused RPi4 (the 8Gig one) running DietPi. I did use it as a playground but ever since I am renting a Hetzner machine for (playground) stuff that I want web accessible, I don’t have particular use for the Pi.

I am currently running (outdated) Home Assistant on it but there isn’t much I can connect it with (yet, getting the flashable/compatible ikea smart lightning zigbee? bridge thingy is on my bucket list). Obviously I do have a pihole there.

Shoot me any other ideas I could run there. Some kind of monitoring of my rented infra would be cool (I already have uptime kuma on the dedi hetzner box). One idea I had was if there are some OSS security scanning “daemons” I could use on to monitor my other infra.

Thanks a lot!

  • Samsy@lemmy.ml
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    11 months ago
    • Wireguard + wireguard-ui
    • Linkwarden
    • Filebrowser
    • Dockge
    • Trilium
    • Paperless-ngx
    • OCIS
    • AdGuard Home
    • Jellyfin
    • Rocket-Chat
    • Vaultwarden
    • Mailcow

    That’s my actual mess.

    • Scipitie@lemmy.dbzer0.com
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      11 months ago

      Thanks for sharing! The only thing I’m surprised to see in your list is paperless - how long does OCR take on a pi?

      • Samsy@lemmy.ml
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        11 months ago

        Idk, exactly I put near 500 pdfs in it, and after 3 days it was complete

      • Turun@feddit.de
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        11 months ago

        About a minute, 1:30 maybe (edit: per page on a pi4). I use an app to upload jpegs though, I don’t have a normal scanner at the moment. The higher quality scan and smaller file size may make some steps of the process quicker (no need for alignment and color correction for example) if you use a normal, proper scanner.

        It doesn’t matter though. When I get home and see I got a letter I scan it and by the time I drank something, put away my clothes and stuff i had with me, the pi is done and I can edit the metadata in the web ui.

        • Scipitie@lemmy.dbzer0.com
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          11 months ago

          Thank you! That’s really interesting, the performance with a pi 3 was way worse - even more than the pure spec difference would’ve lead me to believe.

          The OCR devs have made a really awesome job!

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            11 months ago

            I have a pi4, 4GB. And running off of an SSD (connected via SATA to usb adapter). Sorry, forgot to specify.

            Even slower would still be worth it IMO, digital document management is just so much better than keeping multiple folders of paper organized. Also I can access all my paperwork from anywhere, because the pi and my phone are both in my wireguard VPN network.

            • Samsy@lemmy.ml
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              11 months ago

              Yes, had some cool moment a few days ago, boss asked me face to face if I did this special training 5 years ago.

              I took my phone out, open paperless, did a full text search and tada, there it is. The cert for this one.

    • huquad@lemmy.ml
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      11 months ago

      I wish you hadn’t posted this \s. Now I have so much more to play with on my server. Great software here!

    • loiakdsf@discuss.tchncs.de
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      11 months ago

      Wait aren’t the system requirements for Mailcow crazy high? How can you run it + other software on a mere Pi? Also: do you have a static IP?

      • Samsy@lemmy.ml
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        11 months ago

        Yes, that’s correct, mailcow runs on a vps outside with a static IP, I missed that op only asks for RPI hosted.

  • atzanteol@sh.itjust.works
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    11 months ago

    Most people seem to just want to use RPIs as a very slow Linux server for some reason…

    Use it to play around with hardware integration with the GPIO pins. Get a sensor HAT and start recording temperatures, write some code that turns on/off an LED, build a robot controller, etc. There are lots of kits and documentation on the various things you can do!

    • anamethatisnt@lemmy.world
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      11 months ago

      I’ve been wanting to use multiple raspberry pi zero w with sensory hats to feed data to a central home monitoring system. Would be a fun project.

      • atzanteol@sh.itjust.works
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        11 months ago

        It is! Especially if you want to write the code yourself. It’s an interesting design problem if you start to consider cases where the PI may be offline (mobile on a battery in my case). Do you lose that data? Store and forward? In memory or to a local data store? It’s a fun rainy-weekend project.

        Word of caution - HATs can be a rather inaccurate in their temperature monitoring. The Pi gets warm. I had done my work using a PTC thermistor that was distanced from the Pi itself. I’ve got a friend using a HAT and it’s been very off (up to 10C above ambient!). A Pi Zero may not give off as much heat as, say a Pi4 though. YMMV.

    • mlaga97@lemmy.mlaga97.space
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      11 months ago

      SBCs like the RPi are kind of awkwardly in-between a microcontroller like an Arduino or ESP32 that you can actually trust with handling GPIO and data logging, and a real Linux system that can actually do meaningful computational work.

      Pretty much the only task I’ve found them reliably appropriate for is running OctoPrint, really really light computer vision tasks for robotics, or hooking up an RTL-SDR to use as a police/HAM scanner. Outside of those, it’s so much easier to use either a cheaper and more reliable MCU or a much more powerful old laptop or desktop.

      • atzanteol@sh.itjust.works
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        11 months ago

        That’s one of the nice things about them.

        You can write code that has access to more resources. I had a RPI once that showed code build status on an led strip (red failed, green passed). It was a Java program that connected to AWS SQS for build event notifications. A micro controller would be much harder to do that on.

    • taaz@biglemmowski.winOP
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      11 months ago

      Unluckily last time I wanted to do sensor stuff the ~20 euro air quality multi-sensor (co2, pm1-10, humidity, voc?) board got lost in transit and I didn’t bother since :(
      The original plan was use it with my esp32 dev board (wroom32, so wifi) to have a portable sensor, this RPi was supposed to be the collection server (mqtt, influx, grafana).

      I should revisit this idea soon, thanks for reminding me!

    • Fermiverse@feddit.de
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      11 months ago

      To report back, my system is up and running. Used my spare odroid xu4 with dietpi for it. Put it all in a case and attached a cheap Nooelec stick. Waiting for my antenna today and to decide where to put it under the roof.

      Fine tuning for best reception location will be taking a while to be honest.

    • taaz@biglemmowski.winOP
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      11 months ago

      I did this for a hot second (already have RTL-SDR set here) but the current location of the RPi is just bad for reception and moving it closer to some window would mean connecting through wifi (can’t lay ethernet cables, renting) and that’s bad for other services where low response times are preffered/needed (pihole) :(

      • LifeBandit666@feddit.uk
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        11 months ago

        Instead of connecting it to WiFi, have a look into power line adapters. They route your internet through the copper wiring in your house.

        I have a router in my subterranean ground floor linked to a power line adapter, a wired router in my front room a floor up so my PC, TV, Playstation, etc are connected via LAN, and another power line 2 floors above that plugged into another WiFi router running in bridge mode, which supplies WiFi to the top two floors, and another playstation wired in to that router

        Basically it means that my ground floor router is hooked to the internet and everything else in the house that needs wiring in is wired in because of the power line, and the WiFi is coming from 2 routers, one on the top floor and one on the ground.

        My ISP thought a WiFi router on the ground floor of a 4 storey house was a great idea, but they’re stupid. WiFi should be in the highest point of your house.

        With a few Power line adapters you can sort your internet out for £25

    • walden@sub.wetshaving.social
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      11 months ago

      Vaultwarden is super, but I’d be hesitant to run it on a Raspberry Pi unless I had good backups in place. I’ve always run stuff off MicroSD cards with Pi’s, but I’m sure there’s a way to use real drives which would make me feel better.

      • Samsy@lemmy.ml
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        11 months ago

        You don’t need permanent backups of it. Vaultwarden is more like a secure “syncthing”. I crashed a system with vaultwarden had to rebuild everything but after connecting it to my devices I got the passwords from them back again and nothing was lost.

        • walden@sub.wetshaving.social
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          11 months ago

          Yeah that’s true, your devices will still have a cached copy. Still… losing the host would be a pain. It looks like (from the browser extension at least) I can export the vault, so maybe it’s not as bad as it seems.

        • cron@feddit.de
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          11 months ago

          It has some amazing caching, but that doesn’t mean a backup is not necessary or recommended.

    • taaz@biglemmowski.winOP
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      11 months ago

      I might have a look actually, though if any of these require publicly accessible IP then that won’t be possible because of CGNAT :(

  • Decronym@lemmy.decronym.xyzB
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    11 months ago

    Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:

    Fewer Letters More Letters
    AP WiFi Access Point
    CGNAT Carrier-Grade NAT
    DNS Domain Name Service/System
    HA Home Assistant automation software
    ~ High Availability
    IP Internet Protocol
    LXC Linux Containers
    NAT Network Address Translation
    PiHole Network-wide ad-blocker (DNS sinkhole)
    PoE Power over Ethernet
    RPi Raspberry Pi brand of SBC
    SATA Serial AT Attachment interface for mass storage
    SBC Single-Board Computer
    SSD Solid State Drive mass storage
    VPN Virtual Private Network
    VPS Virtual Private Server (opposed to shared hosting)
    Zigbee Wireless mesh network for low-power devices

    14 acronyms in this thread; the most compressed thread commented on today has 9 acronyms.

    [Thread #439 for this sub, first seen 19th Jan 2024, 13:45] [FAQ] [Full list] [Contact] [Source code]

  • RBG@discuss.tchncs.de
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    11 months ago

    A local jellyfin installation so you can watch/listen to your media even if your internet is down.

  • Flying_Hellfish@lemmy.world
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    11 months ago

    I ran HA on mine for a while before I moved it to a VM. Right now I’m using my Pi as a secondary wireguard VPN in case my primary is down for some reason.

    Also, quick tip, I found that ikea zigbee bulbs work really well but have really bad coil whine when off, don’t use them for bedside lighting.

  • Jyek@lemmynsfw.com
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    11 months ago

    I run a modded Minecraft server for my friends, PiHole for my home network, DDclient, and a discord bot for my discord server on a RPi4 8GB. I also use another as an emulation station.

  • TheBuenasTardes@lemmy.world
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    11 months ago

    Someone posted the code for circadian whole home lighting, running on a pi not too long ago. Might be kinda cool to try out.

  • qjkxbmwvz@lemmy.sdf.org
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    11 months ago

    Immich! It’s an amazing self hosted Google Photos replacement.

    Zigbee definitely fun with HomeAssistant. I have an SLZB-06M adapter which has PoE (important for me) and is a fairly “open” product (don’t need to jump through hoops to flash firmware). I read somewhere that it may offer Thread support at some point but wouldn’t count on that.

      • Darkassassin07@lemmy.ca
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        11 months ago

        Ah; then host the OpenVPN server from hetzner, the pi as a client, then configure the server to route traffic out through the pi client into your LAN. Your own little vpn tunnel, instead of using something like cloudflare tunnels.

        Wan client > Hetzner > pi client > lan service

  • nodsocket@lemmy.world
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    11 months ago

    Use it to make a webcam server. You could probably afford to plug in multiple webcams since it has USB 3. Great for checking on the home when you’re away.