sbts-aru
octo-termlib
sbts-aru | octo-termlib | |
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23 | 1 | |
94 | 1 | |
- | - | |
9.4 | 6.3 | |
3 months ago | about 2 months ago | |
Shell | Roff | |
GNU General Public License v3.0 or later | - |
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sbts-aru
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Going in circles without a real-time clock
Unfortunately a Raspberry Pi is a bit ill suited for production environments. Id recommend an RTC module. Otherwise this might be helpful: https://github.com/hcfman/sbts-aru
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Running a Raspberry Pi with a read-only root filesystem
If you install my sbts-aru project
https://github.com/hcfman/sbts-aru
It will shrink your partitions, add news and install one of these and set up a sub micro second system clock and an audio recorder suitable for sound localization with a single install command.
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2024-03-01 listening in on the neighborhood
I recommend primo EM272 microphone capsules for use with https://github.com/hcfman/sbts-aru. They are high quality, very sensitive with high signal to noise ratio, lauded for nature recording use cases. They can be bought assembled for around 65 euros in the Netherlands. However these capsules are often found in much more expensive equipment.
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Considerations for a long-running Raspberry Pi
My sound localizing Raspberry Pi installs a resilient base system as part of its install.
https://github.com/hcfman/sbts-aru
https://hackaday.com/2023/12/30/localizing-fireworks-launche...
With one command it for all Pi’s for both Raspbian and bookworm it:
* Shrinks the file system (Gee, how does it do that with just one disk ? ;-) )
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Colorado wolf reintroduction to move forward as ranchers' legal effort fails
I have a sound localization project that can help with that
https://github.com/hcfman/sbts-aru
You need to be able to hear the sound from three or more recorders. And normally localization is better within the polygon of microphones but there’s an area of better localizability extending outside of a vertex.
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Acoustic Location and Sound Mirrors
Interesting history!
And while we are in the subject of sound localizing may I take the liberty of introducing my new raspberry pi sound localizing audio recorder.
https://github.com/hcfman/sbts-aru
It installs with one command on all Raspberry Pi versions and synchronizes the system time to less than 1 microsecond of error with a cheap GPS.
With three of these I’ve been able to sound localize the explosions from illegal fireworks to a specific car park from more than 3km away with lots of houses in between.
When I got to the car park I could smell the sulphur from the fireworks.
This will even run on a Raspberry Pi zero running of a battery with a 6 euro neo 7m gps and a 6 euro usb mic.
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AI tool helps ecologists monitor rare birds through their songs
Very nice tool!
So grab a spare Raspberry Pi, a GPS, a cheap USB sound card and a mic and get recording with this Pi based Acoustic Recording Unit
https://github.com/hcfman/sbts-aru
And while you are at it, install 3x or more and localize where the birds are.
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Ask HN: Comment here about whatever you're passionate about at the moment
Sound localizing. I was intensely passionate about it when I saw the possibility to do it well on a Raspberry Pi. There were quite a few more problems than so expected which is why it took five months (of weekends) to complete it well.
But I’m super happy with the result and have a bunch of geeks with recording nodes setup a long distance apart. Localizing large explosions show that it’s possible to localize to a carpets even when some of the nodes are almost 5 away.
For those interested, here is the project:
https://github.com/hcfman/sbts-aru
- Localizing sound sources on a Pi anyone?
- Raspberry Pi based sound localizing audio recorder
octo-termlib
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Ask HN: Comment here about whatever you're passionate about at the moment
Text rendering / UI on minimal hardware and finding more time for ML-family languages.
A few months ago, an iced-rs maintainer[1] recommended I try Elm. So far, this has lead to:
1. A an MVP[2] of a curses[3]-like library for CHIP-8 derivatives (https://github.com/pushfoo/octo-termlib)
2. A growing interest in language design
3. An ongoing re-evaluation of my software development worldview
[1] 13r0ck / Brock on GitHub (https://github.com/13r0ck). Hire him if you get the chance. He has a rare blend of know-how, mentorship, and community management skills.
[2] Unsolved issues with octo-termlib:
1. Finding a license friendly toward beginners editing pre-made template assembly files (Maybe zlib + acknowledgement?)
2. Elegant & efficient syntax for ending screen X / Y parsing before all digits are used
[3] https://en.wikipedia.org/wiki/Curses_(programming_library)
What are some alternatives?
al-ahli-hospital-blast
Bitgrid - Bitgrid - a new model of computation
BirdNET-Pi - A realtime acoustic bird classification system for the Raspberry Pi 4B, 3B+, and 0W2 built on the TFLite version of BirdNET.
running_page - Make your own running home page
cp-mod-ref-2019-patchwork
random-ideas - random ideas
Rack - The virtual Eurorack studio
logseq-sync - An open-source Logseq Sync backend implementation
stock-exchange - Personal stock exchange on your laptop!
vimium - The hacker's browser.