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

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

#341
I have a pi with a Displayotron HAT which is designed to wake me up with a loud klaxon noise if it detects service outage. It also emits a soft glow to show that all is well.

Aside from valuing my sleep, I have a lot of incentives to ensure it never goes off, including the fact my wife says she'll divorce me if she ever hears the klaxon :D

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

#342
post #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? A…

I was touring one of the 3D Printer manufacturers when they were first setting up, in little more than a garage. I'm not mentioning names because, honestly, it doesn't matter. But I remember it being said "We aren't running the printers unattended until we've gone a full day without one of them catching on fire... I have no reason to expect that is still the case, but it's a funny memory.

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

#343

Four things: 1. Pihole to ad block ads (useful for phone browsing) https://pi-hole.net/ 2. Custom Weather conditions dashboard, using Dark Sky's API I'd love to replace the weather dashboard with one of my integrated work / personal calendars so I could see what meetings I have each day but work won't expose that data, claims it's a security risk. 3. Custom NYC subway dashboard, showing me estimated train arrivals fo…

Have you experienced any issues using PiHole? I would imagine some apps etc would go to lengths to prevent their use. But if it works I'll set one up for my partner who plays way too many spammy games.

I have two Raspberry Pi with PiHole (for redundancy) and it works very well.

But still find something a bit annoying and there is little we can do about it.

1. YouTube Ads are still showing up (you need to maintain a list quite often to avoid those ads) 2. To maintain the software (update is simple), but you better update and then back up the SD card and replicate it to the second Raspberry Pi.

In terms of performance, I have not seen anything blocker, no malfunctioning app or the network getting slower. Time-to-time, I got angry wife that cannot click on ad links. :-)

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

#344

I use it to take up space in my drawer of useless electronic stuff because I can never find a combination of power supply and SD card that doesn't eventually end up corrupt and unbootable.

You could try not buying cheap components. Storing it in a drawer probably doesn't help either.

My drawers have been pretty good on my electronics. Where do you store them?

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

#345
We have over 2000 deployed over Europe in locksmiths, providing a form of key service to the public. Challenges include not DDoSIng our APIs, getting a correct configuration to not nuke SD cards, and ensure that a bad firmware push doesn't knock the network offline.

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

#346

1x Raspberry Pi 3 installed in my car within the internal network as a bastion box and to run software that let's my interact with the entertainment system 1x Raspberry Pi 3 running Home Assistant with a Z-Wave USB Dongle (Home Automation) 1x Raspberry Pi 3 running OctoPrint (Host/remote-control for 3D Printer) 1x Raspberry Pi 3 running FullPageOS (Full-screen Chromium in kiosk mode) displaying a server statusboard i…

Unifi controller on a pi zero might be a bit painful on the memory front. It wants the controller (java app) and mongo, both of which like to eat up memory.

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

#349
post #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? A…

I agree, I use octopi but mainly because it is convenient and not to run it remotely.

I'm thinking of eventually enable remote printing though (just to be able to perform long prints), but I will have some safety measures installed before that. All of the below is probably mandatory for me.

* A webcam that I can watch from wherever I am (mobile and browser). Also with audio so that I can listen in on it. I think it would be possible to have an automatic system to listen (or watch) in on the printer to hear anomalies - but I will not have the energy to pursue that.

* I will be able to shut down the power via internet.

* Perhaps automatically shut down printer and then cut power if internet connectivity is lost - preferably with sms notification.

* A smoke alarm that automatically cuts power (will most likely be software controlled though, so not foolproof)

* A heat activated fire extinguisher (haven't done research on it yet but exists quite a few, popular for caravans etc.).

* Decent printer with good track record (prusa), and all the automatic protections enabled (temperature sensors giving up etc.)

I have not yet decided if the above provides a satisfactory level of assurance that nothing will go wrong. I know that just the webcam will provide immense ease of mind - but that is just me being human.

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