raynayX
@raynayx.com
62 followers 53 following 8 posts
Embedded Software Engineer, poetry lover, and cat lover. Not necessarily in that order! https://raynayx.com
Posts Media Videos Starter Packs
Reposted by raynayX
b0rk.jvns.ca
job control

wizardzines.com/comics/job-c...

(from The Secret Rules of the Terminal, which is out now!)
your shell lets you run many programs (“jobs”) in the same terminal tab

programs can either be:

    foreground
    background
    stopped (which is more like “paused”)

& runs a program in the background

for example I like to convert 100 files in parallel like this:

for i in `seq 1 100`
do
   convert $i.png $i.jpg &
done

jobs lists backgrounded & stopped jobs

$ jobs
[1] Running python blah.py &
[2] Stopped vim

use the numbers to bring them to the foreground or background (like fg %2), kill them (kill %2), or disown them
when you close a terminal tab all jobs are killed with a SIGHUP signal

you can stop this with disown or by starting the program with nohup: disown %1 (job number goes here) nohup my_program &
a trick to kill programs if Ctrl+C doesn’t work

    press Ctrl+Z to stop the program
    run kill %1 to kill it (or kill -9 %1 if you’re feeling extra murderous)

a little flowchart

Three boxes, labelled “running in foreground”, “stopped”, and “running in background”

Ctrl+Z goes from “running in foreground” to “stopped” fg goes from “stopped” to “running in foreground” fg goes from “running in background” to “running in foreground” bg goes from “stopped” to “running in background”
Reposted by raynayX
atomic14.bsky.social
Been messing around with my latest PCB - I've now got a "digital twin". More details at the video: www.youtube.com/watch?v=6vpd...
Reposted by raynayX
alexglow.bsky.social
Attend Open Healthware (an @oshwassociation.bsky.social conference) for free on Aug. 1-2!

As a preview, I chat with Herine Palacios and Avinash Baskaran on #HacksterCafe, today at 10:30am PDT 😄

Watch on @hacksterio.bsky.social :
▶️ www.youtube.com/watch?v=a8zy...
▶️ www.linkedin.com/events/73556...
The video thumbnail, featuring the two guests, the Open Healthware conference logo and URL, and Hackster Café branding.
Reposted by raynayX
alpenglow.bsky.social
Sneak Peek of part of something I’m working on having available this fall.
a blown up image of part of something that has ruler markings that are lit up
Reposted by raynayX
chrisgammell.bsky.social
I have always wanted something like an #ssh connection to the #iot devices I work on. Today we published about how to use #Golioth RPCs and a simple front end to do just that.

glth.io/remote-shell
Reposted by raynayX
jamesmunns.com
Did you know: if you installed Rust with rustup, you already probably have the "Embedded Rust Book" locally. If you run `rustup doc` in your terminal, it'll open the bookshelf with all the docs installed already, including the main rust books as well as the embedded rust book.
Reposted by raynayX
embeddedfm.bsky.social
Join our vibrant Slack community( embedded.fm/support ), support Embedded, and gain exclusive access to invaluable insights through our Slack channel.

Come join us read and learn together!

#signalprocessing #slack #math #mathematics #computerscience #embeddedengineer #stemeducation #slack

3/3
Support Us — Embedded
embedded.fm
Reposted by raynayX
embeddedfm.bsky.social
...

We've invited a math professor to guide us through all the fancy math in the book.

Expect engaging Slack discussions and weekly live sessions on Fridays at 11am PT, beginning June 20.

#embedded #engineering #machinelearning #ml #datascience #ai #bookclub #reading

2/3
Support Us — Embedded
embedded.fm
Reposted by raynayX
embeddedfm.bsky.social
We're starting an exciting journey through the book: Data-Driven Science & Engineering( databookuw.com ) on the Embedded Slack #book-club. The book explores signal processing, machine learning, and control systems from a fresh, data science perspective.

...

1/3
About the Book | DATA DRIVEN SCIENCE & ENGINEERING
databookuw.com
raynayx.com
Join Chris ( @stoney.monster ) and Elecia on episode 502: Chat J'ai Peté( embedded.fm/episodes/502 )
as they talk about Murderbot, LLMs (AI), bikes, control algorithms, and fancy math.

Thank you to Nordic Semi for supporting the show!
#algorithm #ai #llm #math #embedded #engineering #murderbot
502: Chat, J'ai Peté! — Embedded
Chris and Elecia talk about Murderbot,  LLMs (AI), bikes, control algorithms, and fancy math.  The website with the ecology jobs is willdlabs.net from 501: inside the Armpit of Giraffe ...
embedded.fm
Reposted by raynayX
oshwassociation.bsky.social
Through the support of our NSF grant focusing on open source medical care we are excited to be working on an Open Healthware Conference in New York in August! Check out the conference website and explore how you can get involved:

healthware.oshwa.org
raynayx.com
raynayX @raynayx.com · Apr 28
On episode 499: This Is Your Problem( embedded.fm/episodes/499 ), we hosted Janet Hansen( @flashingjanet.bsky.social ) to discuss professional costumery (with electronics) and becoming an artist.

Here's Janet's parting message:

#art #Mudder #embedded #engineering #electrical #electronics
Reposted by raynayX
shawnhymel.bsky.social
Happening next week! 🔥 Sign up for my #Zephyr workshop at 10:30 am CDT April 24. I'll cover the basics of writing a cross-platform #embedded device driver. If you want to follow along, consider getting the parts now.
👇
event.on24.com/wcc/r/487016...

#IoT #microcontroller #RTOS #electronics
Reposted by raynayX
jamesmunns.com
I'm going to be on @memfault.com's YouTube live on Thursday: www.youtube.com/live/kflFgdH...

One Q I want to answer is "where is Rust being used in production for embedded?", if anyone wants to share anything that is public I should namedrop, please let me know!

Drop by and hype up the chat too!
Interrupt Live: James Munns | From Zero to main(): Bare metal Rust
YouTube video by Memfault
www.youtube.com
Reposted by raynayX
litbowl.bsky.social
From Matthew Rohrer's book, Surrounded by Friends: bookshop.org/a/862/978194...

#poem #books #writing
Reposted by raynayX
raynayx.com
raynayX @raynayx.com · Feb 13
Here's an original piece -- Other Selves ( raynayx.com/2025/02/02/o... ).

It reflects on how we're usually overwhelmed by our circumstances but attempt to meet the moment every now and then.

--xk
#poet #poetry #poetsofbluesky #blacksky #BlueskyPoets
#poetrycommunity #amwriting #Skypoets #poetlife
We express our joys in sad verses
And when sad days come along,
We are unable to find our voices
We are unable to summon Akpalu‘s songs

You will see us do the dance of warriors
When there’s absolute peace within
And when war times come, we’re full of terror
We’re unable to channel Gemedra from within

You will hear us dole out ancient wisdom
When the judges have yet to sit
And when our kinsmen stir up a storm,
We are unable to find Ʋenya‘s ancient wit

But when you see us in a contemplative mood
Humming deep yet calm tunes for our loves,
Know that the boiling pot has shown all what’s for food
And the still river may harbor a crocodile that starves

x.k

https://raynayx.com/2025/02/02/otherself/
raynayx.com
raynayX @raynayx.com · Feb 13
Here's an original piece -- Other Selves ( raynayx.com/2025/02/02/o... ).

It reflects on how we're usually overwhelmed by our circumstances but attempt to meet the moment every now and then.

--xk
#poet #poetry #poetsofbluesky #blacksky #BlueskyPoets
#poetrycommunity #amwriting #Skypoets #poetlife
We express our joys in sad verses
And when sad days come along,
We are unable to find our voices
We are unable to summon Akpalu‘s songs

You will see us do the dance of warriors
When there’s absolute peace within
And when war times come, we’re full of terror
We’re unable to channel Gemedra from within

You will hear us dole out ancient wisdom
When the judges have yet to sit
And when our kinsmen stir up a storm,
We are unable to find Ʋenya‘s ancient wit

But when you see us in a contemplative mood
Humming deep yet calm tunes for our loves,
Know that the boiling pot has shown all what’s for food
And the still river may harbor a crocodile that starves

x.k

https://raynayx.com/2025/02/02/otherself/
Reposted by raynayX
sweetnessa314.bsky.social
In 1992, Dr. Mae Jemison made history as the first Black woman to travel to space. As a physician, engineer, & astronaut, she shattered barriers in STEM fields. Since leaving NASA, she has focused on empowering young people in science and technology.
#BHM2025 #BlackHistoryMonth #BlackWomeninSTEM
Reposted by raynayX
chrisgammell.bsky.social
I chatted with the embedded team at @raspberrypi.com about the #RP2350 on The Amp Hour. It's an amazing "dual dual-core" part that is finding its way into many products. We chatted #hardwaresecurity and #lowpower, as those were key enhancements over the #RP2040.

theamphour.com/687-the-rp23...
A metalized rasbperry in a glass case, with the label RP2350. There are pictures of 4 team members on teh front of the case.
Reposted by raynayX
arturo182.bsky.social
Würth Elektronik has released @kicad.org files for some of their components including symbols, footprints, and 3D models.

They're licensed under CC BY-SA 4.0, but your design is not required to be shared under that or any other license if you're using them.

github.com/WurthElektro...
GitHub - WurthElektronik/KiCad-Library: WurthElektronik_KiCad-Library
WurthElektronik_KiCad-Library. Contribute to WurthElektronik/KiCad-Library development by creating an account on GitHub.
github.com
raynayx.com
Good luck going from Micro HDMI(on the Pi) to standard DP(on the monitor) as I've had to do because procurement folks just buy stuff without consulting anybody.
I'm not sure anything turns my stomach as much as this!
Reposted by raynayX
Reposted by raynayX
straithe.com
Design a PCB, win this competition, and come hang out with me in Edinburgh during the Open Hardware Summit. If you are new to PCB design ping me and I'll do my best to help you out. ♥️

www.hackster.io/contests/boa...
Board Designer Competition
Board Designer Competition With Nordic Semiconductor, Autodesk, and PCBWay.
www.hackster.io