Ask HN: What are you using your Raspberry Pi for?
6 pointsby chirau5 months ago7 comments
  • serf5 months ago
    I have one running home assistant, I have one running a duet web server for a printer, and I have one that runs cncjs for a mill.

    the home assistant one runs a reverse proxy and adguard/tailscale docker among other things.

    they're useful but the price point sucks right now unless you absolutely need the IO ports/shields they provide. I have a PoE shield on my home assistant one that makes the installation very tidy.

  • electricant5 months ago
    I have a pi 3 B+ running as an LTE to WiFi gateway. I'm not using the native WiFi but the ethernet is connected to an openwrt router.

    Since I had ram to spare it also does:

    - dhcp

    - caching DNS + filtering

    - Mqtt server

    - GPS-based NTP server

    - Openvpn server to my nas (at a different location) and vps

  • chrismeller5 months ago
    My main one is for ADSB using adsb-lol.

    I also have the Pimoroni Enviro+ in my living room. I've got their Grow kit somewhere as well, but... no plants since I moved.

    I used to have a Kubernetes cluster running on some Pi3's, but they got a little too slow and I was bumping up against the lower memory. Lots of other self-hosted stuff, but it's all on some old off-lease computers I found cheap, not on a Pi.

  • fiscalnonsense5 months ago
    In active use:

    retropie - pi3b+

    gps based ntp (2x pi2 + gps hats. Chrony rocks.)

    rtl_433 monitor for 915 and another for 433 (2x pi2, 2x rtl-sdr sticks)

    an ads-b 1090 monitor (pi3 + rtl-sdr stick)

    libreelec - plex clients (2x pi4 (1GB and 2GB)

    an emulated macintosh (pi3)

    a flood monitor in the basement (pi1)

    an aarch64 dev platform (cm4-8GB) and another (pi5-8GB)

    • chrismeller5 months ago
      Can I ask for a few more details on your GPS NTP setup? That thought popped into my head the other day but I can't think of a real reason to do it, it'd really just be a cool way to waste some time.
      • electricant5 months ago
        It mostly is a cool way to waste some time. But why not? You'll have millisecond-accurate timing throughout your network
  • bergie5 months ago
    We're running three right now:

    One runs our boat's primary navigation system with Signal K and connects to the instruments via an NMEA2000 hat.

    The second one is the boat NAS.

    The third one powers an info display on the nav table.

  • mr_sturd5 months ago
    My longest running Raspberry Pis are using HifiBerry HATs. Acting as SnapCast clients, forming a poor man's Sonos system throughout the house. The oldest running Pi is a 2.
  • tobinfekkes5 months ago
    PiHole