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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?

#941

Post by Havoc »

erredois wrote: post #436
Havoc wrote: post #430

Experiments mostly. Yesterday I tried steam link. Previously a vpn AP. Also a air quality mon. And a flightaware station. And a file server. ie i Format it quite often and start from scratch

Which sensor did you use to measure air quality?

Right...back on a laptop - I purchased the item linked below. Amazon should have similar for a couple bucks more.

Integration part was easily...bit of hackey python does the trick.

Noted very slight buzzing sound which was irritating if next to bedstand. Not a major concern.

https://www.aliexpress.com/item/32606349048.html?spm=a2g0s.9...

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

#942

Post by kriscius »

gregsadetsky wrote: post #617

There's a bus station across from my studio / coworking space. I can see people waiting for the bus and doing either: 1) staring into the void 2) looking at their watches 3) desperately glancing in the direction where the bus is coming from. I figured that it'd be nice to let people know when the bus is supposed to be there. So, I installed a 28" display on a monitor stand, installed the stand on my window frame, tur…

In big cities in Poland it's a common thing. Good job tho

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

#943

Post by tmaly »

Aromasin wrote: post #783

I have a (basically non-existent) side business selling LED strips and RPi lighting controllers for surfboards! If you've seem some viral videos with guys surfing around at night, they were probably using my gear :-) Briefly put, I use the Glediator and Jinx! control software on an RPi, which communicates with an Arduino, which drives the LEDs. I put them in a permanently sealed box, water proof it as much as I possi…

Curious if you have any watering solutions for external gardens using a Pi?

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

#944

Post by abrookewood »

peteforde wrote: post #900
abrookewood wrote: post #810

Earlier quoted context omitted.

The model looks fantastic. Can you share any details on how the project worked or what your company is?

First: sigh. First-coda: past tense Second: I worked alongside a brilliant team with rare knowledge of geometry reconstruction. We took the 70 images of people, algorithmically removed the backgrounds and then used a proprietary process to create a mesh geometry from the intersection masks of those shapes in 3D space, which all had to be carefully calibrated on the regular. That geometry was smoothed to create a vali…

Sorry to hear that it didn't work out, but it's still an impressive achievement. 60s to produce something that lifelike is incredible. I'm surprised no game companies were interested.

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

#945

Post by chadd »

sokoloff wrote: post #625
chadd wrote: post #615

With my 16 year old son, I built a weather balloon with one, including an Arduino, a few temperature sensors, a GPS, LoRA radio, and we're going to launch it next month. Having a hard time finding Helium.

Don't most party stores have helium tanks?

I need 200 cubic liters and they won't sell that much

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

#946

Post by chadd »

cmmeur01 wrote: post #658
chadd wrote: post #615

With my 16 year old son, I built a weather balloon with one, including an Arduino, a few temperature sensors, a GPS, LoRA radio, and we're going to launch it next month. Having a hard time finding Helium.

Welding supply store may be worth checking.

Yes they won't sell except to existing customers. New customer == no helium.

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

#947

Post by chadd »

orpheline wrote: post #681
chadd wrote: post #615

With my 16 year old son, I built a weather balloon with one, including an Arduino, a few temperature sensors, a GPS, LoRA radio, and we're going to launch it next month. Having a hard time finding Helium.

As a further science project, why not liberate hydrogen through electrolysis? Much less expensive than helium, and greater lifting capacity...

good idea! I think we're just going to get a hydrogen tank, some protective gear, and go that route.

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

#948

Post by true_tuna »

jonaswi wrote: post #399

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…

A cat or your cat specifically?

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

#949

Post by true_tuna »

jonaswi wrote: post #479
fdjlasdfjl wrote: post #428

Earlier quoted context omitted.

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…

Your English is amazing. Don’t let it stop you.

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

#950

Post by chriscareycode »

It's an addiction, I have 17 and a Pi4 on order

1 - (pi) pi - temperature sensor

2 - (pi) woody - garage door opener - custom web interface

3 - (pi2) white - Unicorn hat blinking lights

4 - (pi2) pi2b - OpenVPN server, pihole DNS

5 - RetroPi - Games (Pi 3)

6 - bigwood - Freeswitch phone system, Nagios4 (Pi 2 Model B v1.1)

7 - (pi) unicorn #2 - unicorn hat blinking lights

8 - pi2 motion - motion sensor, camera, blink(1) light- blink shows red or orange when motion is sensed and takes photos

9 - Slack Bot - (at work)

10 - zero (on desk at home)

11 - green3 - camera - garage wide angle (old cam)

12 - infra - camera front door

13 - infra2 - camera garage wide angle

14 - infra3 - camera front door far view

15 - zerow-cam with infrared usb adapter displaying cameras on tv - change cameras with remote control

16 - zerow-cam1 - camera back yard

17 - zerow-cam2 - camera back yard

18 - Pi4 4GB is backordered but I found a Pi4 2GB which I hope will serve well as a file/backup server. Hoping to utilize the USB3 to get better I/O to a couple external disks.

Running Bitwarden on a VM right now but will probably move this to a Pi4 in the near future

I have all of these connected to a custom command-and-control web interface (socket.io) where I can send commands, perform updates, monitor load average, version, uptime - and can reboot if needed

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