@poleguy@mastodon.social avatar

poleguy

@poleguy@mastodon.social

Nick Dietz, b. 1977, m. 2008, kids. 2010, 2016, d. false. #catholic #electricalengineering #pcb #fpga #ppprs #ev #solar #icehockey #zamboni #wfh #diy #foss #linux #oakpark IL

employed at #shure inc designing wireless systems.

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rasterweb, to 3DPrinting
@rasterweb@mastodon.social avatar
poleguy,
@poleguy@mastodon.social avatar

@rasterweb @t_l_wood
Eschews me?

poleguy,
@poleguy@mastodon.social avatar

@rasterweb @t_l_wood Ha no, I'm with you on this one. :-) I'm just questioning your word choice. You don't really hope he espouses the evils of capitalism do you? Did you mean to say you would hope he eschews the evils of capitalism? Or am I missing something?

poleguy,
@poleguy@mastodon.social avatar

@rasterweb @t_l_wood Well, I was quite proud of my "eschews" pun, thanks to you!

I don't actually use the word eschews myself, but today it was fun.

Mastondon is weird though when the conversation goes meta like this and then history gets edited. Now we can't see the original message, so it really no longer makes sense. It's like a time-travel movie.

poleguy,
@poleguy@mastodon.social avatar

@rasterweb Sure enough, now I see that you can click on the "Last edited" and read the original. My eyes have always glossed right over that. Good to know!
Kinda like most normal people gloss over the misused word... You could have said "I'm hoping this radicalizes the kid and in ten years he eschempses the evils of capitalism." And it would have been perfectly clear.

trofi, to random
@trofi@fosstodon.org avatar

Given a directory name how do you:

  • cd to it
  • chmod +x it
  • find in it

What if it's name is -269? (no quotes, yet).

It might sound like a silly interview question. Real diffoscope-269 release tarball has a top-level directory -269: https://salsa.debian.org/reproducible-builds/diffoscope/-/issues/378

Naturally nixpkgscode calls find -269, chmod +x -269 and cd -269 as:

cd: -2: invalid option
cd: usage: cd [-L|[-P [-e]] [-@]] [dir]

Proposed the fix for the above failures as https://github.com/NixOS/nixpkgs/pull/317106

poleguy,
@poleguy@mastodon.social avatar

@mansr @trofi my initial thought was similar. In general if it is possible to fix an entire class of problems rather than a very specific problem, it seems like you should do it. Using "--" to prevent any more command line options is a good example of this. This kind of cruft is why I consider a real programming language as soon as my bash scripts get their first conditional of any type.

whitequark, to random
@whitequark@mastodon.social avatar

chat, what is a Python MQTT library that's not absolutely awful to use?

poleguy,
@poleguy@mastodon.social avatar

@whitequark The one you write. You write it. We will use it.

whitequark, to random
@whitequark@mastodon.social avatar

normal RF things: the transmitter only works properly if i'm sitting downstairs at my desk (both the boiler and the transmitter are downstairs)

if i'm upstairs, it does Nothing

am i antennamoding now?

poleguy,
@poleguy@mastodon.social avatar

@whitequark that could be too close for that power level. You may be overloading the rx? Try padding the TX by 20dB.

poleguy,
@poleguy@mastodon.social avatar

@whitequark @domi your body moving changes the multipath propagation. The combined signal at the rx can go up or down quite a bit due to multipath.

poleguy,
@poleguy@mastodon.social avatar

@domi @whitequark if you have 2dBm hitting direct and 2dBm hitting with a reflection off of a metal boiler you will get a deep null. Do you have two rx antennas or only one? If one you likely are in a null. For fun a big piece of metal plate in the room to try moving the null. Or just move the rx antenna by six inches.

poleguy,
@poleguy@mastodon.social avatar

@whitequark @domi Try moving the tx antenna? Or your body. Hehe. It all gets the same effect. Is this one TX antenna and one rx? Then this is very expected multipath behavior. It's particularly troublesome in a room with lots of rf reflective material e.g. metal duct work. A metal plate near the TX can be used to change the antenna pattern to aim it differently. Or it could be too hot a signal like my first guess. Try throwing a heavy blanket over the TX as a test?

rasterweb, to random
@rasterweb@mastodon.social avatar

Another day, another piece of software that adds AI...

➡️ https://iterm2.com/downloads/stable/iTerm2-3_5_0.changelog

I do like that they added this in the release notes: "You will need to provide an OpenAI API key since GPT costs money to use."

(So it's disabled unless you want to pay for it with your own API key.)

poleguy,
@poleguy@mastodon.social avatar

@rasterweb why is this any better than just asking chat gpt in a browser and pasting the results into bash?

I see two ways it is worse. It requires money. It requires an api key. And if I don't have to copy and paste, I'm more likely to run a command I didn't vet carefully.

arstechnica, to random
@arstechnica@mastodon.social avatar

23-year-old man accused of running $100 million online narcotics marketplace

Incognito Market operating on the dark web allowed people to buy and sell narcotics.

https://arstechnica.com/tech-policy/2024/05/23-year-old-man-accused-of-running-100-million-online-narcotics-marketplace/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social

poleguy,
@poleguy@mastodon.social avatar

@arstechnica I love that anything bad is always found on "the dark web". Yet I doubt anybody buying from this tor site got there by looking for "the dark web" to find it. They just clicked on links and followed the instructions just like doing anything on the bright web.

mntmn, to random
@mntmn@mastodon.social avatar

what's the easiest way to forward input events (mouse, keyboard) from a wayland (wlroots) session on one computer to the other (also wayland/wlroots)?

poleguy,
@poleguy@mastodon.social avatar
rasterweb, to random
@rasterweb@mastodon.social avatar

Also yesterday, while people were mocking gender reveal parties...

Family Member: "What's the point of it anyway? It's either going to be a boy or a girl."

Me: "Well, actually..."

Me: "Gender is not binary, it's fluid, and you might not even know the gender your child identifies with for years or decades after their birth, if they even feel comfortable talking to you about it..."

(I am the "crazy uncle" but so far left of the rest of my lefty family I make them look like Reagan sometimes.)

poleguy,
@poleguy@mastodon.social avatar

@rasterweb I'm not at all far left, but feel the gender reveal parties are a bit weird. It's all to let the crazy aunts pick out pink frilly clothes or not. We didn't do any pre-birth testing with our first kid at all. I'd be tempted to suggest waiting till the birth and changing it to a genital reveal party and not bother discussing gender at all. Young babies don't need much clothing anyway. Even at a genital reveal there are cases where the reveal would cause more questions than answers.

rasterweb, to Milwaukee
@rasterweb@mastodon.social avatar

After a week off due to travel I had my longest ride yet… over 9 miles in about 55 minutes.

poleguy,
@poleguy@mastodon.social avatar

@rasterweb Is that the path of barts head and extended cigarette?

azonenberg, to random
@azonenberg@ioc.exchange avatar

@dlharmon You've done bare metal Zynq-7 stuff right?

Do you have any kind of blog or resources to talk about how to set up an extreme minimalist no-OS bare metal Zynq firmware?

Ideally I'd like just a single source file (not generated by vivado, something I can actually write from scratch) that I can just build with arm-none-eabi-g++, put on a SD card (zynq doesn't allow you to jtag binaries to the PS right?), and then boot up and give me some sign of life by poking a GPIO SFR or something.

Ultimately my goal is to experiment with some truly cursed things that are likely incompatible with all of the generated wrappers, petalinux, etc.

Things like having PL be a CoreSight APB bus master that can poke debug registers on the A9s.

poleguy,
@poleguy@mastodon.social avatar

@azonenberg @dlharmon I briefly attempted to look into this type of thing, but instead swore off zynq as too antagonistic to this approach. The mindset of the tool writers is so mismatched that it seemed a hopeless, endless, uphill battle just to get to zero and start from scratch. If you do it you are a foolhardy hero. :-)

rasterweb, to random
@rasterweb@mastodon.social avatar

I just added a comment to my code that would have easily saved me an hour today but will surely save me countless hours in the future...

poleguy,
@poleguy@mastodon.social avatar

@rasterweb the question we always ask of old code is "why?" but yet so many comments only answer the question "what?" My new rule: each comment should use the word "to" in it.

poleguy,
@poleguy@mastodon.social avatar

@rasterweb that's an interesting comment. I know that type. Typically due to a side effect in an external behavior that's poorly documented and poorly understood I imagine. The comment has the word "to" in it but not in the sense I was getting at. It doesn't answer why it has to go first. I'd guess you don't actually know why? Or the comment might read "this has to go first to prevent explosion". The second "to" is the "why-to" I propose we include in more comments.

rasterweb, to random
@rasterweb@mastodon.social avatar

The city has decided our house is now worth nearly twice as much as we paid for it in 2013. No wonder greedy real estate bros try to buy up all the property.

poleguy,
@poleguy@mastodon.social avatar

@rasterweb But Pete, doesn't the big mac cost 2x what it did in 2013 as well? Isn't this just us getting old and not accounting for inflation? I remember when my Grandpa tried to leave the tip for dinner with a one dollar bill. Is your house a better investment than anything else? Maybe? Or is money just worth half what it was because your govm't printed a bunch.

poleguy,
@poleguy@mastodon.social avatar

@rasterweb I'm with you. I described money to my daughter when she was three and she had the same reaction: money is a terrible idea. It's only a great idea if you are the lucky ones with all the money.

poleguy,
@poleguy@mastodon.social avatar

@rasterweb I just re-read this post, and realized how hard it is to even speak of the problem of money without using terms like "afford" or "free."

poleguy, to random
@poleguy@mastodon.social avatar

@rasterweb Weren't you looking for a weather app a while back? What did you settle on?

https://mastodon.social/@Precz/112314114544825738

poleguy, to random
@poleguy@mastodon.social avatar

#caturday
What's cookin'?

rasterweb, to Milwaukee
@rasterweb@mastodon.social avatar

I did manage a 5.28 mile ride this morning before the rain. It’s been a while, felt good to get out there again. (I also reported a bunch of potholes to the city.)

#mke #Milwaukee #biking

poleguy,
@poleguy@mastodon.social avatar

@rasterweb I'm not by my computer or I would outline the upper left hand loop, for it looks like a baby shark.

Incidentally I taught some l of the neighbor kids how to play baby shark on the piano this week. I hope their parents think that's as funny as I do! :-)

penguin42, to Electronics
@penguin42@mastodon.org.uk avatar

I'm failing trying mitxela's trick of wrapping a wire around an ironbit for SMD soldering, any one got any ideas? This is a traditional 25W Antex iron it's wrapped on, but it's not getting hot enough on the wire, it boils off flux, melts low-melting point paste but doesn't do anything to existing components:

#electronics

poleguy,
@poleguy@mastodon.social avatar

@penguin42 @yrabbit I don't know the back story here. I presume you don't want to file the iron itself?

I presume buying a soldering iron with a small tip is also no fun.

So can you determine if it is the thermal conductivity of the wire limiting the heat transfer? Then just make the last bit of that spiral shorter.

If it is heat transfer into the wire you could try coating the wire and tip in solder. Or did you already?

Do you have a higher wattage iron?

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