5 ms·

Ask HN: What are you using your Raspberry Pi for?

6 points by chirau 1y ago

serf 1y 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.
tobinfekkes 1y ago
PiHole
mr_sturd 1y 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.
fiscalnonsense 1y 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)
- chrismeller 1y 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.
  - electricant 1y ago
    It mostly is a cool way to waste some time. But why not? You'll have millisecond-accurate timing throughout your network
chrismeller 1y 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.
electricant 1y 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
bergie 1y 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.

6 points by chirau 1y ago

serf 1y 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.

tobinfekkes 1y ago

PiHole

mr_sturd 1y 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.

fiscalnonsense 1y 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)

chrismeller 1y 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.
- electricant 1y ago
  It mostly is a cool way to waste some time. But why not? You'll have millisecond-accurate timing throughout your network

chrismeller 1y 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.

electricant 1y 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

bergie 1y 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.