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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?

#431

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…

Why do you use two separate pis for it?

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

#432
post #56

Earlier quoted context omitted.

If yours has wi-fi (Pi 3 and above or Pi Zero W) you can always just leave it plugged in somewhere innocuous as a pi-hole. It's super useful and takes almost no time to set up, provided you can change the settings on your router to use it as DNS.

I'm scared that if the pi is down then the whole internet is down (i'm not always home with my family, so if I'm away I couldn't fix it). How do you manage failover ?

How do your manage your router failing? Do you have a second one in hot standby? Sure, the pi would add a second point of failure but personally I never had a router or rpi fail, so I think the advantage of running a pi hole outweighs that increased risk.

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

#433
- 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 cluster (1 master, 5 workers) doing nothing until I can find time to continue working on this project... found out I need to build Docker images on an ARM host so my CI/CD first choice did not work :(

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

#434
I have a bunch of them scattered around my house.

2x LibreELEC media players 1x RetroPie emulation station 1c OctoPrint/OctoPi 3D printer controller 1x Home Assistant automation controller 1x Car PC project 1x retrofitted old alarm clock 1x hosting RTL-SDR stick in attic

One of the media centers is actually a Tinkerboard, but that's been annoying due to half-assed support and I'll be replacing it with a Pi 4 as soon as I can get my hands on one.

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

#437
post #322

* Security camera with motion detection, which uploads clips to my personal Google Drive. * Always-on, ssh-authenticated gateway to my LAN. I used it while traveling to tunnel through and remotely control my desktop computer which had some credentials I didn't have with me.

This sounds awesome! Can you share some code for it?

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

#440
Stratum-1 time server using a GPS module; was a pain in the neck to set up; reminded me of the old days, compiling kernels on a 386, or building things on Ultrix. Served its purpose for a trading project though.

I should probably do something else with it as its been gathering dust for years now.

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