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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?

#832

Earlier quoted context omitted.

As someone newly with tinnitus, and with fading hope that it will go away at some point, I've been playing around with ideas of doing something like this. I was thinking of using frequencies to cancel each other out, but I think this might work much better.

I don't think that it's possible to use certain frequencies to 'cancel out' the perception of tinnitus because for the over whelming majority of folks dealing tinnitus the noise isn't a real sound.

Even an imagined sound has a frequency (and probably?) a phase.

It might be possible to generate a tone at the same frequency and shift the phase until it's 180 degrees out of phase with the imagined sound. Perhaps the brain would do the math and cancel the imagined sound?

This can't really be automated since there's no way to measure the imagined sound, but it might be possible to make a little box with knobs - pitch, phase, and volume - that would all one to tune a cancellation frequency.

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

#833

I run a plex media server on my 3b+. The server is on the wall below my router (attached via ethernet), a 2TB HDD sits next to the server. I put movies & TV for my kids on the server, then they can watch on one of two TVs in the house via Roku. It's good for getting them off trashy Netflix movies & making classics (or what I consider classics at least) available to them. I chose this configuration rather than running…

Have you thought about trying this with a RPI 4B? Thinking about replacing my 3b+ providing two SMB shares with such a setup, once 4b has matured a little.

Well I don't have any reason to replace the 3b+ now (I just set it up earlier this year), besides faster file transfer on the 4, and I'm disinclined to upgrade something I just built.

Unless the 4 can handle video transcoding I don't see what the benefit of it would be. If it has increased energy use it might even be a worse choice!

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

#834
post #221
post #208

I use one running OpenWRT as a router. Its an old 3B, so it barely keeps up now that our internet has been updated to 100Mbps. It will soon be replaced, possibly with a pi 4. Of course, it also runs some other things. I have OpenVPN running on it as well as a little nginx instance that I can use for reverse proxying if need be. And the wifi turned out to be surprisingly solid as a (slow) access point, so I have somet…

Don't you need two Ethernet ports to use it as a router? Are you using USB as the other Ethernet port?

Yes, you do need two and it does significantly limit throughput since both the internal and external Ethernet adapters are routed through the same USB bus. The 3B seems to top out at about 90Mbps. I'm not sure what the throughput on a 3B+ would have been, but I'm sure it would have been much lower than its maximum of ~270Mbps.

Having said that, much of the US is restricted to <100Mbps internet and there are some nice advantages to having a relatively powerful little computer running right at the edge.

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

#835

I have a few Raspberry Pi boards and since I've seen folks doing stuff similar to what mostly do I thought I comment on something I hadn't seen yet. I struggle with tinnitus distress and Ménière's. One of my coping strategies is to continuously play some sort of background sound in the areas I occupy. I have a first gen RPi with a set of USB powered speakers in my bedroom that plays long form background soundscapes I…

I briefly perused the wiki article for meniere's and it fits all the hallmark signs of a psychosomatic symptom, right down to medieval, I mean mainstream medicine not knowing the cause. I recommend reading Divided Mind - good luck!

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

#836

I have a few Raspberry Pi boards and since I've seen folks doing stuff similar to what mostly do I thought I comment on something I hadn't seen yet. I struggle with tinnitus distress and Ménière's. One of my coping strategies is to continuously play some sort of background sound in the areas I occupy. I have a first gen RPi with a set of USB powered speakers in my bedroom that plays long form background soundscapes I…

As someone newly with tinnitus, and with fading hope that it will go away at some point, I've been playing around with ideas of doing something like this. I was thinking of using frequencies to cancel each other out, but I think this might work much better.

Tinnitus is usually a psychosomatic symptom, especially if you haven't suffered any kind of ear trauma recently. Medicine only begrudgingly accepts the role of stress despite it being obvious to sufferers, however stress is only part of a much more interesting story. Look up John Sarno's work if you're interested.

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

#837

2 Pis for dealing with ADS-B (airplane data), one for 1090Mhz, the other for 978Mhz. I could run that on the same one, but seemed easier to just split them up given some of the software is a bit picky with device IDs. The 978Mhz is much quieter than the 1090Mhz, so I also run a private SpyServer ( https://github.com/lloydpick/docker-spyserver ) for listening to radio transmissions. 1 Raspberry Pi for a running a very…

Why do you listen to all these radio transmissions?

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

#838

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…

I live nearby and often use this when catching the 55! Sort of surreal to start reading your post and immediately recognize it's something from just a block away!

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

#839
At Geckoboard we have a Pi hooked up to a thermal receipt printer so that remote participants can print off their retrospective cards through Slack: https://medium.com/geckoboard-under-the-hood/building-a-slac...

(We've upgraded it a bit since that post! - We also use it to ping a Slack channel for when it's standup).

We also use Pis to run some of our dashboards: https://support.geckoboard.com/hc/en-us/articles/36002392437...

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

#840

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…

I live nearby and often use this when catching the 55! Sort of surreal to start reading your post and immediately recognize it's something from just a block away!

This is so sweet to read! Thank you!!
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