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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?

#472
post #429

I live in an apartment with quite strict fire-protection standards. Due to the fact that I have a cat that absolutly loves to go outside, I needed to find a solution for him to get outside without a catdoor trough my door. So I installed a fire-protecion-approved door drive that is hooked to a raspberry pi. Another raspberry pi then analyzes a video stream and detects my cat. If my cat is in the frame for n amount of…

Sounds like there is a market for fire standard approved cat doors! ;) I loved reading what you are doing with the Pi though.

As you might have guessed, that came to my mind too. Due to the fact that I have worked with a company in the fire damper business, I was contacting them and we were brainstorming about it. The thing is: The market is just non existent. Also fire-protection regulations can be very specific depending on the country you are in. For example, EU ratings are not always recognized here in Switzerland.

Since last week I'm in contact with the manufacturer of the door drive tough because they maybe want to create a product out of it. To be honest I think it would pure marketing and at the moment it is very unlikely to ever hit the market.

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

#474

- 1x Raspberry Pi (older, not sure exact model) - exposed to the internet and acts as a bastion host for ssh'ing into other devices on my home network - 1x Raspberry Pi Zero W - monitors several Wemo Insight Switches around the house and turns them on if they are in an off state (if the power goes out, the Wemo switches do not turn back on so I have to do it manually) - 6x Raspberry Pi 3 Model B - running in a k8s cl…

I work for Codefresh, a CI/CD solution that has ARM support.

Maybe it can help you? https://codefresh.io/docs/docs/incubation/arm-support/

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

#476
My favorite use is in a photo booth I set up. It controls two cameras (webcam for preview, DSLR for the actual photo -- hopefully the RPi 4 will be me enough bandwidth to drop to just the DSLR), outputs to a printer, and drives a monitor. And the whole thing fits in a nice little suitcase.

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

#477
post #337
post #263

Earlier quoted context omitted.

oh jeez the SD card story just gave me flashbacks. I changed networks (uni to home) and the RPi running pihole would constantly keep my uni DNS settings after a restart. Took me a good few hours to figure it out given that I thought the DNS settings were getting copied in from elsewhere on startup. I think i finally figured it out after i re-installed rapsbian from scratch and to my horror was booted in to the old sy…

The SD card was failing to write? It would have blown my mind if I reinstalled raspbian and the old config popped up. I’ll have to keep this in mind.

I had an SD card once that would not fail to write (i.e. kernel does not show write errors) but when you read back it gets the old data. Tried it on multiple operating systems with the same behavior.

It was a more expensive SD card because I see more issues with cheap ones.

But it seems to me that SD cards suck at all price brackets. Maybe even some of the expensive ones are counterfeit?

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

#478

Earlier quoted context omitted.

Just a side note, the links under "Check out some of the tools I used to build this" don't seem to render, I think they're blocked by my Pi-Hole

yeah, they're Amazon affiliate links (gotta pay for hosting some how) my pihole also blackholes them

Start a side-side business taking bets on if the plant will be watered today?

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

#479

I live in an apartment with quite strict fire-protection standards. Due to the fact that I have a cat that absolutly loves to go outside, I needed to find a solution for him to get outside without a catdoor trough my door. So I installed a fire-protecion-approved door drive that is hooked to a raspberry pi. Another raspberry pi then analyzes a video stream and detects my cat. If my cat is in the frame for n amount of…

I could actually use exactly that. Do you have a blog outlining how you did it, or the code on github by any chance?

No sadly not. I'd love to write about it but my English is just not good enough to write a compelling story. Writing it in German and then having it translated is always a bit of a hassle. But I may consider it. At the moment I have an offer of the door drive manufacturer for doing a "home story" about the solution. If that will happen, it will definitely be released in English.

I will open source everything once I'm happy with the security and the ability to configure it.

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