Earlier quoted context omitted.
I tried using a Pi4 for a pihole and it kept crashing. Overheating I think. But, if I solve that, the SD card would kill it eventually.
What power supply were you using? My Pi 4 running 2 instances of Octoprint kept crashing until I switched to their official power supply. On previous models I always got away with whatever power supply I had around but the 4 doesn't play around when it comes to power consumption.
Nine Raspberry Pis powering an office (2016)
61–70 of 159 posts
Re: Nine Raspberry Pis powering an office (2016)
#62Re: Nine Raspberry Pis powering an office (2016)
#63Earlier quoted context omitted.
Do you have any references for MTBF or the Pi's failure modes in general? SD cards going out are pretty much the only thing people talk about, and that problem is easy to solve. Another thing is bad power supplies, again easily solved (and not the Pi's fault).
My experiences with raspberry pis has been exclusively and extremely negative. The first one I owned had some kind of electrical fault that bricked and destroyed my TV. The second one I owned had a fault where a few of the capacitors on the back fell off upon me plugging it in for the first time. The third one I tried had a fault where it would spontaneously shut down if I had any USB devices plugged into it for any…
I have a power supply that is so weak that Pi would reboot when I plug a USB keyboard in it. Solution: never use weak power supplies on Pi's.
> I have never seen the micro HDMI port on anything made before 2013 so the adapters required to make it work with modern TVs may as well be proprietary ones sold by RPi.
Pi Zero uses mini HDMI due to size constraints. Pi 4 has 2 HDMI outputs! Instead of adapters, I always prefer "right" cables. More expensive but convenient. E.g. https://www.amazon.de/Snowkids-zukunftssicheres-TV-Kabel-unt.... Also, ironically, my 2012/2013 ASUS Zenbook has a microHDMI port.
> The fourth one I owned had the same problem, and the way I fixed it was desoldering its onboard wifi receiver running it at an absurd underclock and overvolting the USB2 input with my bench power supply.
Have you tried 2-3A power supplies? E.g. https://www.amazon.de/Anker-PowerPort-Wandladeger%C3%A4t-kom.... Though I found the "official" supply cheaper and went with it.
> One of the issues that comes to mind is that the RPi 3 had a problem where it would spontaneously shut down if the lights in the room flickered wrong.
Most likely your power adaptor would not be able to maintain stable voltage when your lights flickered.
Anyway, have been running 3B+, a few Pi0s for a few years and this is the first time I read about so many problems with Pi's falling on one head. To keep my SD cards alive longer, I use DietPi and had only one SD card die on me over ca. 10 pi-years of uptime.
> more well-behaved SBCs
I am all ears!
Re: Nine Raspberry Pis powering an office (2016)
#64Can connect to them from anywhere in the world to check what's going on with my house and in some cases act on it.
They also gather every possible piece of data they can get their hands on and log that to a centralized, off-site InfluxDB instance so I can ramp up a grafana instance and check what's been happening in the last .
Convergence of a few things that happened relatively recently to make this possible / easy:
1. Wireguard: all my computers and it thins are on the same virtual LAN
2. Pi 4 has a *way* better Wifi antenna and can sit quite far from the Wifi router and still be very useful.
3. Grafana
4. InfluxDBRe: Nine Raspberry Pis powering an office (2016)
#65Earlier quoted context omitted.
Can I heavily recommend the use of them as a pihole + Wireguard VPN + DNSCryptProxy Server. Pihole -> Great use for a network wide adblocker/DHCP server. Wireguard VPN -> In combination with a DDNS setup and some port forwarding enables the use of a global private VPN. I think it's a prerequisite for a decent home-automation setup. DNSCryptProxy -> Great for ensuring all DNS requests on the network via DNS over HTTPS…
I tried using a Pi4 for a pihole and it kept crashing. Overheating I think. But, if I solve that, the SD card would kill it eventually.
What I've heard is a crashing Pi is usually due to sagging voltage on an inadequate power supply, and that's probably even more an issue on the more demanding/powerful Pi4. On my cameras I just use the wall warts adafruit sells for the Pi, and haven't had any power problems.
Re: Nine Raspberry Pis powering an office (2016)
#66We use a small drink kiosk touch pad powered by Rasperry Pi, using this simple software project: https://github.com/rwth-i6/drink-kiosk Works great. Except the SD card seems to be dying now after 3 years of constant usage (well, less usage during the enforced home-office times).
Re: Nine Raspberry Pis powering an office (2016)
#67Re: Nine Raspberry Pis powering an office (2016)
#68Earlier quoted context omitted.
Can I heavily recommend the use of them as a pihole + Wireguard VPN + DNSCryptProxy Server. Pihole -> Great use for a network wide adblocker/DHCP server. Wireguard VPN -> In combination with a DDNS setup and some port forwarding enables the use of a global private VPN. I think it's a prerequisite for a decent home-automation setup. DNSCryptProxy -> Great for ensuring all DNS requests on the network via DNS over HTTPS…
Any good tutorials on setting up Wireguard? This (and Pihole) have been on my todo list for a while.
Once you have the base OS ready to go, it will take you less than 30 minutes if you know how to muck with your DHCP/firewall settings in your router.
https://github.com/pi-hole/pi-hole/#one-step-automated-insta...
Install Pi-Hole, then edit your DHCP server to hand out the Pi-Hole as the DNS server.
After installing Pi-hole, install this. Choose Wireguard, not OpenVPN. port-forward the Wireguard UDP port to your VPN server. use the "pivpn" command to create client configs and the "qr" subcommand to scan the config into your phone.
Re: Nine Raspberry Pis powering an office (2016)
#69Earlier quoted context omitted.
My experiences with raspberry pis has been exclusively and extremely negative. The first one I owned had some kind of electrical fault that bricked and destroyed my TV. The second one I owned had a fault where a few of the capacitors on the back fell off upon me plugging it in for the first time. The third one I tried had a fault where it would spontaneously shut down if I had any USB devices plugged into it for any…
> The third one I tried had a fault where it would spontaneously shut down if I had any USB devices plugged into it for any reason at all (in this case it was a mouse and a flash drive). I have a power supply that is so weak that Pi would reboot when I plug a USB keyboard in it. Solution: never use weak power supplies on Pi's. > I have never seen the micro HDMI port on anything made before 2013 so the adapters requir…
>Pi 4 has 2 HDMI outputs!
Two full-sized HDMI ports could fit on the board. At least, I could fit them. I question the competency of all the engineers working there.
>Most likely your power adaptor would not be able to maintain stable voltage when your lights flickered.
No. It was due to the wifi/bluetooth tranceiver not being potted and it would hard-reset if disturbed too much by the photoelectric effect.
>Anyway, have been running ...
Anecdotal evidence. They are built like absolute trash and it's a miracle anybody says they work for any reason.
> more well-behaved SBCs
Wake me up when someone makes one with ECC ram. I will not entertain using one unless it does.
Re: Nine Raspberry Pis powering an office (2016)
#70My RPi's are like lottery tickets. I buy them with the thought of all they could be used for...then collect duct in the junk drawer. I also tell myself I'm supporting the manufacturer, though it would appear they don't need my help.
I've got a web server, a SAN, a couple pi-holes, and a home automation controller. I plan to spin out my databases and Prometheus onto their own Raspberry Pi's. All of them are configured using Ansible. I can recreate one in a hurry if it dies and data backed up to a ZFS partition on the SAN pi. I have a couple additional Raspberry Pi's that I temporarily hook up to the network and run a script to sync the latest ZFS snapshots over for backup purposes.
I'm sure you could find SOME use for them :)