#general-chat
1 messages · Page 40 of 1
On the other hand, I'd love a case with something like this
https://hackaday.com/2010/04/22/usb-vu-meter/
I mean, it wouldn't be hard to make by hand. I could actually try it!
Have you checked out haiku?
It's surprisingly usable!
(I actually daily drove it on a spare notebook for fun a few years ago)
Yeah.. couldn't find a reason to actually use it though.
lol
I mean, I threw it at an old notebook. You could try using it to revive one
I have Mint 19.x running on my Pentium M laptops.
If I recall, I got stuck on a version lock... between the kernel and the legacy nvidia drivers.
Do you need hardware acceleration?
I can't progress past that, because 32bit.
Oh.
For regular desktop stuff?? Probably not. 😛
haiku-os has 32-bit builds if you're interested
Good use for something like this https://www.ebay.com/itm/154784514406
Not bad...
Run a kernel compile for an instant disco feel!
I'll admit, that was a lot of the appeal for this working scale model PDP 11/70
Ohhh! Sexeh
I'm thinking more DIY, as I wanted to be really daft and have a gradient to the LEDs. 😛
You've got me thinking, maybe one of those IN-13 neon bargraph displays as a CPU meter...
Have you programmed the real thing?
Not familiar with that..
I only had a tiny amount of time on a real PDP-11/70, I spent most of my time on the department's VAX-11/780
I did log a lot of hours on a PDP-11/23 and a PDP-11/05 previously, however
Nixie thing?
The PDP-11/23 was running AT&T v7 Unix, the VAX was running BSD, and the 11/05 was running a bizarre system by LeCroy Research called ORACL
Related to nixies, but a true bargraph display that illuminated a greater or lesser length depending on the current through it http://m.bareille.free.fr/vu-in13/vumeter_in13.htm
Whereas I really enjoy many flavors of high voltage glowy things. Different strokes for different folks.
This is a completely silly question, but is there a PDF reader that supports regex search?
The last time I did something like that, I used Python and PDFPlumber, which is likely overkill (in one axis) and not a PDF reader (in another axis)
how to subcribe data from indicator in io.adafruit
I solved my problem by getting the webpage corresponding to the PDF with w3m, saving the text in a file with a bash redirect, and then finding with vim
I've also been known to just select all the text, paste it into a text document, and search that
iirc most browsers support searching PDFs
Yeah, but whether that search supports regex..
It doesn't
derp - reading comprehension in weekend mode 😏
🤪
(Unless there's some awesome firefox addon I don't know about)
[Yes, I still use firefox]
I only use Firefox.
I have chrome installed because it's the new IE and some websites only work with it
speaking of blinkin lights - foreground is a pimoroni LED shim showing CPU temp of the pi 3 (under the crickit) - the background is a 128x128 OLED showing luminosity, both on a Pi 4 (i2c)
Speaking of the crickit, I just looked it up and its marketing description made me smile
it's a fun piece, for sure
I'd make robots if I had the time
(and disposable income! Robot parts ain't cheap!)
:P
which is why i'm dyi-ing with knockoff lego tchnic
I had no idea "knockoff lego technic" was a thing
you can literally buy "compatible" stuff by the pound
The old sentence made it sound like the knockoff bricks were so bad they were metaphorically killing you
nope - only the new callous on my right index finger from pulling stuff apart 🤌
You gotta get a lattice fpga and make robots with weird logic
i have to build something that won't torque itself apart first
Is that user or knockoff brick error?
😊 user
getting re-acquainted with the notions of angular inertia and momentum, and "moment arm" incidents
My kinematics is not up to speed
I haven't thought about this stuff since high school
same - "i didn't think it was supposed to fling itself across the room"
Newton intensifies
gear ratios? i got into programming to avoid math!
I remember having to solve a programming exercise involving gears way back when
Yay i will get my first board sooner
I hope you'll enjoy them!
FYI, your tracking number is visible.
This could be used to derive personal info about you (address etc) if punched into the delivery portal
PSE delete the picture & censor
Oh yes
I checked with support and they kept argue with me there's no new tracking number
This is the code used by the intermediary courier to deliver to the airport
I mean, delete that picture, it has the tracking number showing!
But I mean that doesn't have my address and it just shows what is my country
It's an old tracking id
And the new courier is lazy to assign new id
I have no idea how couriers work in your country; In mine, as long as you have a recent enough tracking ID, you can get the person's address
True but there are lazy sometime
Some courier service also throws your package
So I hope I don't get that or the whole thing is bubble wrapped
Then those sites aren't ADA compliant (which means nothing if they're not US sites, and little even if they are, even though it's technically against the rules)
No, they are not US sites. And, sadly, the web is so broken that following the WCAG requires a small team dedicated to just that
Having had to use accessibility software at some points in my life to use a computer, I can tell you that most of the web definitely is not friendly to anything other than mouse + keyboard or touch screen
Do you have the slightest idea of how many menus disappear if the browser window loses focus?
I just might! Thanks for the suggestion
I do have some idea of that, both from working with people needing various assistive/accessibility software, and crawling sites for search engines.
👋 @late fulcrum
I wonder if it's possible to let IO expander control the SPI CS lines.
Not for hardware spi, but software spi might be possible.
Even hardware SPI should work okay. You'd just flip the CS line in software at the start of the transaction, then kick off the hardware SPI to control the clock and data, then when it's done manually control CS again. There's usually not any timing constraint between CS and the other signals.
I thought so
I was thinking how should I use remaining 8bit on MCP23017
I think esp32 is lenient on however we do at CS
Synchronous bus is fun 😉
The package arrived
Will get from my friend tomorrow at school lol
nice
MCP23017 has an issue where pin 7 can only be used as an output not an input or something like that. Well you can but depending on what batch you got the chip in it might cause random issues. The issue is well known and goes back a decade. If it's your first time working with the MCP23017 it's something to be made aware of.
Something probably went wrong during the multi-corner timing analysis for that part...
The problem goes back a decade. They only just this year actually documented it in the datasheet.
Yeah, I'm just trying to make an educated guess on how that kind of error happened
Don't mind me, just trying to apply the vlsi stuff I'm trying to pick up on the side
:)
management... it's quite obvious they would have known about it and swept it under the rug for increased profilts.
I guess rushed product development would be one part
Don't get me wrong they're amazing chips, I love them and will use them anyway but now at least I know to avoid using that pin as an input.
But I'm surprised they haven't revised the design since
maybe someday, would be nice. there are alternatives and that's kind of the problem. by admitting the issue they'd lose to their closest competitor for a real 8 input 8 output multiplexer.
Oh yeah, that, rev.D
I have RevC so it's not affected
But still, I need to think about using full-8bit as a input
Probably remap that GPA0..3 and GPB0..3 can be used for input
Two reads are same as one when you set bulk-read set 🙂
where can i find good quality of WS2812B Led Strings? 🙂
We have all sorts of LED strips for a wide range of needs. Chonky strips? We got those! Strips with alligator clips that are easy-peasy to MakeCode? Oh definitely. ...
was looking for these
Features: Working voltage: DC5V Working current: 60mA Power: 0.3W/LED Working temperature: -40¡ãC- 60 IP grade: IP68 Dimension: 12 mm Lifespan: MTBF>50000h Viewing angle: > 90 Applications Outdoor advertising, Christmas decoration. Cove Lighting Path and contour lighting Backlight for signage/ le...
If I wanted to use this sensor in esp-idf instead of arduino, How difficult would it be? or should I just drop my distaste for the arduino ide and use that https://www.adafruit.com/product/2542
This is somethjing Ive struggled with, should you just use the ide with the libraries or is there a way to get it to work as easily?
holy crap, someone figured it out last year. https://github.com/sukesh-ak/Arduino-Library-with-IDF
Usually I end up using PlatformIO so I can still use the Arduino framework while having a project-based approach and being able to use software like VS Code or CLion then the Arduino IDE.
Plus, there is autocomplete 🤩
Heh, like the 65C51 UART?
It's basically a serial device, so it's not hard to talk to. I integrated one into a MSP430 project with no issues. However, it only supports older cellular protocols that are no longer in use in much of the world.
Was this the center of a Ben Eater video recently, sounds familiar
Yea the rs232 serial interface video i believe
Yup. The 2007 data sheet didn't mention the issue, but the 2021 data sheet did, or something like that. I'm kind of tempted to see if it can work with interrupts (either by polling the interrupt status bits or using the interrupt directly)
I added homeassistant mqtt discovery to my device but not the actual function yet
Me: removes major stress from my life
My body: does a cortisol dump
Me: gets sick
Work in progress
Hope you feel better soon 🍵
Thanks! Mostly hurts to talk right now, the starts of a dull headache as well. Hopefully it’s just one of those one or two day things
I usually work in a crowded lab so it’s a sick day today
Feel well soon
Drink much water
And eat medication and food on time
oof. Hopefully it's not viral
Sadly, it seems that the coronavirus is working overtime where I live
That aside, make sure to take good care of yourself
My body is going to pick up any combination it can with stress levels dropping
i use anti virus softwar eto stop covid
mostly the software just says "dont go outside"
I have opted for a hardware-accelerated solution. I hope it continues to be effective
Lol
I was really looking forward to today because my manager is buying pizza for our team meeting
Now I want pizza
mmm pizza
Had a stinking cold for 2 weeks, but short-lived sore throat is gone. Life goes on... plenty of "sitting feeling sorry for myself, and programming Ard/CP when I can think..."
Yeah.. that’s the hard part is thinking straight when it feels like you’re swallowing every 2 seconds
Anyways, I've been "lucky" for a couple years. No colds/flu - but my wife got the flu and I did not. I was also hospitalized 2 years ago (surgery), and tested like 8 times for covid, always negative. I guess I was due. The wife got the cold first then sure enough I did...🙁
Cortisol dumps get me every time
Add in allergy season and I’m wrecked for a few days
attempting to keep my mind busy with not feeling all that great
I've been wanting to do a SAMD11 board so I made a little shim
It looks like there may be just enough room to make it narrower, so it takes up one less row when plugged into a breadboard.
perhaps, there's still a bit of space available for sure
and at $4 from oshpark, not terrible price wise.
Sweet. Other than the USB connector, it looks hand solderable, but of course it would be easier with solder paste and hot air/hot plate/oven
Why the bounce in the traces here?
🤷♂️
No reason really
Other than just trying to keep the distance between traces somewhat consistent
Other than that no real reason
The distance is so short and the speed is so slow it makes no difference lol
I probably care more about the æsthetics of routing than I need to.
Good looking boards are always nice to achieve, I can’t argue with the aesthetics bit
I'm curious, is LVS (layout vs schematic) a thing done in PCB design too?
In a way
You typically do your schematic and then do the board layout against that schematic
Does the tool check they agree?
Interesting!
There's an observation to be made in jest here that IC design is just PCB design with more layers
Similar kinds of spatial reasoning and problem solving, but with some fun extra dimensions.
Have you ever done IC layout? Just curious
I am using the Round rect screen from the store, and I am trying to get a pic from a sd card to wirte to the screen. I keep getting"Initializing filesystem...SD begin() failed
" in the serial monitor. Does anyone know what I am doing wrong
At you using it with Arduino?
Yes, arduino uno
Hmm okay, and you’re hooking up the SPI pins in the right order and toggling the SD CS pin?
I don't know exactly what that means, but I have the SD CS pin hooked up to Digital 4 and I am using the pinout provided on the learn guide.
DC -- 8
RST -- 9
TFCS -- 10
Do you have a picture of your setup (maybe we should move this to #help-with-arduino as well)
ok i will se if i can get a picture onto here
👍🏻
Is that good the power wires are connected in the back
Should i move to the help-with-arduino chat
Yeah
Ok I have transfered our conversation there
I haven't done IC layouts myself, but I've read a few books on the subject and follow Ken Shirriff's reverse chip engineering blog.
I didn't know about his blog, thanks for mentioning it!
I have Weste and Harris in my library, with a Plan[tm] to eventually go through it
Hans Camenzind's books are a good read too 
Oh, I have no idea about anything analog
And now
is a 555 timer IC as far as I'm concerned :P
(He literally has a book called "designing analog chips". That could certainly help remedy that :P)
Does anyone happen to know which phone the windows 95/98/XP phone icon is based on? Talking about this one
(I'm not talking about the modem on the bottom, I'd just like to get myself that phone if it ever was real)
AT&T/Bell Labs probably - https://en.wikipedia.org/wiki/Push-button_telephone
The push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to having a rotary dial as in earlier telephone instruments.
Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such te...
my first "intro" to robotics was a panel where they demonstrated radio control using DTMF tones
I remember reading that in your robotics github repo when you linked to it
😊
(Also, mystery solved! Thanks! Living in Europe, I've never seen that particular phone)
goldenrod and avacado were the biggies at one point 🤮
Yeah, sadly it's collectible enough to be way too expensive.
They probably manufactured 10's or 100's of millions, but they were owned by The Phone Company and probably mostly taken back
Yeah, that makes sense
iirc that was the case
Pop quiz! Who still has a landline?
I technically do. It's VoIP though
But there's an RJ11 on the router I can connect, and have connected, a real phone to it
You could always print one. https://www.thingiverse.com/thing:4220485
This is a old phone design. I did this for fun.
You have the main body and I recommend a brim because of the size.
And you have the two halfs. I did it in two half's so that there would be no supports.
I recommend minimum 10% in fill.
Print at what ever you want .15 or 2.0 for less details.
Print with what ever filament you want.
I designed it...
Almost no company offers real POTS these days :(
If only I had a 3D printer
(Thanks for the link though!)
i grew up near a phone exchange - the manager let a group of us in to see the batteries 👀
The fact that it still works during a power outage is a big selling point for real POTS service
I actually had a real connection up to 2020, but I had to migrate to VoIP because I changed providers
And... I'm wondering if creating a Get Smart shoe phone is actually practical now.
LOL
yes/no?
Depends. Does it still have to work as a shoe?
you can pack all the stuff into just the heel - most of a phone these days is the screen
you're probably right
....and then make it controllable via a smartphone, completely negating its point
smart watch
I've never bought one
I wouldn't consider myself highly experienced in handling electronics, but I kind of wonder if it'd be stupid to make my own bridge rectifier and inputting my wall to it. Is that probably a bad idea?
I'd recommend against playing with mains voltage if you don't have the relevant experience
Power supplies are cheap, and always a better option than potentially risking death
I could really die doing that? I really don't know how likely that is
I mean, mains power is no joke
What would kill me? Getting cooked from completing the circuit? A fire?
Probably completing a circuit with the mains
cardiac arrest is the usual outcome
I did it on accident once and my vision went black instantly. Luckily I let go quickly. So yeah, it's scary, I agree
You were lucky
Usually the electrical current interferes with normal muscle control, locking your muscles and not allowing you to let go
Oh, I've heard of that
A friend of mine wants nothing to do with electricity because his dad saved him from that when he was young and he says the way his hands did their own thing was horrific
Yeah muscle contraction is electricity-based
watch electroboom's video on making a FBR
Let's say I take precautions necessary to not complete a circuit, what could go the worst from attempting to rectify mains myself?
Oh
(Before anyone corrects me, I know that is not entirely true. What's fair to say is that a big contributor to muscle contraction signalling is electricity, and there's an ionic component to the muscle contraction cycle itself)
those are some of the more stupid risks, but they are risks nonetheless
If your device fails, it could start a fire, trip the breaker, etc. It could also expose mains voltage to the person handling the device when it is in normal use
a fuse and inrush current limiter would make it a little safer
and note that the fire would start at a weak point, so it wouldn't even be near to where you're messing with things
What tends to be a weak point in a house
but you're always better off with a power supply
The transformer?
unless you need 170V DC
maybe contacts
Yeah, contacts too
contact resistance can cause heating and 🔥
Anyway, all fuses, except for the GFCI, are to protect the house from catching on fire, not you
probably if you want to do stuff with mains, be on a gfci protected circuit
Just don't do it at all w/o the proper training
I guess I won't go through with it
Although I'm curious, are there certifications for this or something that could provide me with the knowledge to do this safely?
I mean, this could easily fit in the heel.
same. Any certification or safety things for working with mains
Well, I guess going to trade school to become an electrician would be a start
"transformerless" radios and the like were made in the past, but they depended on being in a completely non-conducting case, non-conducting knobs, etc. any failure (like dropping the case and cracking it) was potentially lethal. They were designed for cost reduction. They were bad designs then, and they are bad designs now.
Oh no. I need to be more careful around unknown old radios
Sorry, you sure that's meant to reply to me?
also called "AC-DC"
Maybe getting some measurement and other equipment like a variac, GFCI, fuses, current monitor, some sort of configurable overcurrent shutoff might be good for safety
Just forget about it :)
I guess I'll consult an electrician if I really want to do this sort of thing. That should work out best, right
You'll probably never need to do that, unless you're developing a product commercially that has special power needs
So many power supply modules to choose from!
most SMPS designs are very similar
FBR, bulk caps, step down flyback, feedback, output
of course there's more stuff
but that's the basic design
I've been really curious about the way transformers work. Mostly because I learned about Maxwell's laws and magnetic flux and whatnot recently
But why's there a sort of stigma around transformers?
That they'll kill you instantly
Well, if the voltage / current combination is sufficient, they can definitely do that
Microwaves. That's the context I was told that in
A "microwave transformer" (ie. a transformer used in microwave ovens) definitely fulfills the criteria to be deadly
There's a reason I never make videos featuring MOTs (Microwave Oven Transformers). The high voltage, and more importantly - high current, means they are as dangerous as playing with overhead lines.
This does NOT apply to the spot welder projects where the dangerous high voltage secondary is removed completely and replaced with a few turns of h...
there's a stigma around transformers connected to mains - that's a lot of (pun intended) potential for a lot of energy
Transformers for microwaves usually have a high-voltage secondary winding that generates something in the range of 2-3kV, iirc
I'll definitely watch that video, but in microwaves, do the transformers intend to turn the flux into a higher voltage signal, or lower?
Oh.
Not something to be playing with without some research.
microwaves cook food - you are no different from food
Is this just something that's usually done to make super powerful frequencies?
X-ray machines and such too?
Wait, I misplaced them, those aren't as powerful (x-rays I mean)
Well thanks for the video ningen, that's pretty much what I was looking for
No problem, just make sure to take care of yourself, and don't do anything reckless
Definitely try SPICE to simulate and learn, though!
Curious, is your name "humans" in Japanese on purpose
I mean, you can form collective nouns with 〜たち or 〜ら, but it's usually not needed
Right
Anyway, some options to set up some SPICE simulations:
https://xschem.sourceforge.io/stefan/index.html
https://www.analog.com/en/design-center/design-tools-and-calculators/ltspice-simulator.html
I haven't really gotten used to when it's more or less proper to use those though
Oh cool
As far as I know, it's usually used in set expressions, like 私たち、僕ら, etc etc
I have seen those yeah
You won't hear something like アヒルたちは泳げる
That'd just be アヒルは泳げる. You can typically also drop the は
But it's things like 彼ら being preferred over 彼たち. I haven't determined a difference
I think it's an euphonics thing
Yeah it doesn't look too concrete, it should come with more input
You'll really rarely see 彼 in Japanese though, it's typically 〇〇さん
(Or whichever honorific makes sense)
Well, isn't that "he" though? You're saying that's not common?
(Unless you want to say "boyfriend")
Yeah I know it's in that word, but I thought it meant "he"
Yeah, typically, the (last) name of the person you're referring to is used
You'd typically say something like 山田さん〇〇〇〇〇〇〇〇 in the first sentence, and just skip the topic in the following ones
(Because Japanese tends to drop any information that can be inferred from context)
Yeah I really need to get more comfortable with what stuff my English/Spanish brain makes me feel is important when it's not
I mean, you can use こ・そ・あの人, 彼, etc as well as less polite variants in that case, but if you know the name, you'll probably avoid using any kind of pronoun
Just be mindful that 彼 means both "that guy" and "boyfriend" (as in, that guy)
(same with 彼女)
What was "man" again? Radicals 田 and 力 I believe
彼 does not contain the "man" component
It does include the "person" component, though
(rightmost one, 人 -> イ)
That (along with the more scientific/medical-sounding 男性) refers to the male condition
I mean, you could say あの男 ("that man"), but at that point, we're splitting hair
Yes
I find it kinda funny how 男 and things of the sort have such historic and cultural ties to the way they lived their lives
It's just so cool that within the language itself there is so much meaning and culture
The components of 男 just say "rice field laborer" in a sense, it's really interesting how the history is in there
The thing is that, with a 3000-year-old writing system, you get various negative sterotypical characters, such as 奸 ("cunning and wicked person") and 嫉 ("envy") containing "woman"
Oh, hey, look at that
I definitely don't agree, obviously, but there's something really neat about there being a story, some story, to all of these little things
Being an outside observer, I am not going to make any statements regarding the writing system of a culture that is not mine
It is up to the people who use it to have this discussion if they need to
What I can make is the academic observation that, with some characters, you're getting 3000-year-old stereotypes
(Which I definitely don't agree with either!)
To clarify, it's those stereotypes you can find that I don't agree with, not you
dw, I correctly understood you
I've been thinking of, but too scared to, experiment with consuming media with no help
As in like, watching TV or reading despite not understanding most of it
Something that might help is getting a popup dictionary extension
And the argument I've seen for it is that your brain is incredible at piecing together things like that
That way, as long as you know the grammar, you can read random text you find on the web
It's the "difference between being explained to you why a joke is funny, and actually finding it funny because you get it"
Enjoy!
I've done that before, just watching anime raw, and it's a good learning experience because it forces you to think beyond what books can give you. A lot of the Japanese language kinda wings it and it's very easy to get too attached to what you learn in books.
All of that flies off the window once you realize how fluid the language can be to express just about anything.
Funny thing about me is that, even though I am learning Japanese, I do not particularly like anime or manga. As such, I can't really offer any advice regarding that
That's fair since my learning advice is to just follow your interest in the language. You'll learn it one way or the other.
Yeah, that sounds about right
hear all the time that people from other countries learned English by watching American movies. it goes both ways.
when you hang out with people who only speak a foreign language your brain picks it up much faster
Being a non-native speaker of English: English is literally everywhere, even on the packaging of things you buy. It definitely Helps[TM]
i learned some German a long time ago hanging out in German IRC channels.
...At least, it builds the kind of pathways that are sufficient to go "aha! I've seen this word" once one formally learns it
subtitles help but like all learning... repetition is the key
much of it is practice too
practice is repetition
There's an argument to be made on the distinction between active (ie. practice) vs. passive (ie. revision) repetition.
And some philosophical conundrums over how much language speaking is conscious thought vs stochastic parroting, but that's another story
memetic responses are natural and begins in childhood. it's instinctual and part of the learning process.
I am not a developmental psychologist, so I'll refrain from opining on the topic :P
In other news, the response that's been RLHF'd into ChatGPT for "what am I?" is fairly creepy
Or kind of concerning (at least at a visceral level), because it seems to account for non-human agents interacting with the thing
As an AI language model, I am not able to determine your physical or personal identity. Could you please clarify your question or provide more context?
I have this class project, I want to make the same function as an airtag. I was wondering if this is possible through adafruit components?
To do all the functions of an AirTag, you'd need Bluetooth, GPS, and NFC. AdaFruit does sell boards that do those things, but the end product would be somewhat bulkier than an AirTag
Nice, Yeah id like those components, what are they? Want to mess around with it before eagle.
There are lots of Bluetooth options, perhaps one of the Feathers like product IDs 2829 or 3406 might do, which will give you both Bluetooth and a CPU, as well as a battery charger. Perhaps the Ultimate GPS FeatherWing (product ID 3133), which will stack right on top would be a useful addition. I'm not aware of a STEMMA or Feather format NFC breakout, product ID 364 would probably work, just need to wire it in. You may want some details like Feather stacking headers, maybe an amplified GPS antenna, and/or a rechargeable cell (product ID 3898 is just the right size to fit on top of or under a Feather). Or you may prefer not to go with the Feather format, all these things are available in other forms as well.
The nRF52840 has an NFC peripheral so 2 birds 1 stone, just need GPS
I’m not sure the modules Adafruit sells has nfc broken out, so that might be an issue
I’ve run a feather bluefruit express with gps featherwing and external gps antenna. Works great. Most i did was sync time from my phone. Dont know if you can plug into nfc capabilities with it. Might be worth looking into the nrf52840 library?
Also the gps module is only a receiver. It cannot transmit its location, you’d need some other method to report back the location data it receives.
Such as a cellular modem or lora…
The AirTags have neither, they apparently just make a Bluetooth link with passing iDevices and hand off their data that way.
@late fulcrum : Re: yesterday's discussion, you might find this interesting:
Design repo: https://github.com/RTimothyEdwards/tutorial_layout
00:00:00 intro
00:00:34 getting started with the tutorial
00:01:48 load xschem
00:03:32 open magic
00:08:18 import all transistors
00:11:35 subcells / instances related to xschem
00:13:48 extra parameters
00:14:40 starting layout
00:16:05 pins
00:17:05 default ports
00:18:...
millions of peaches, peaches for me.
mmm. looks like at least a few dozen peaches set
now if only the squirrels will leave them alone
You need a squirrel trebuchet
no, i need a kestrel
Did somebody mention projectiles weighing 100kg flying over 300 meters?
and castle walls?
you need to build additional pylons
squirrels can climb the castle walls. need to spray them with vaseline.
Bovespian gas?
Not sure if I spelt that right
vespene gas it is
Donate Here: paypal.me/agentxrifle
Ni=Pylons
Shrubbery=Vespane Gas (missed it once)
Nu=Supply Depo
enjoy and comment
A classic from ye olde internet
You actually do care about the current more then the voltage since they're just coils this driver explains it pretty well https://www.pololu.com/product/2128/faqs
Our Black Edition A4988 stepper motor driver carrier is a higher-performance drop-in replacement for the original A4988 stepper motor driver carrier. It features a four-layer PCB for better thermal performance, allowing the A4988 microstepping bipolar stepper motor driver to deliver approximately 20% more current than our two-layer (green) vers...
WE ARE LIVE! SHOW AND TELL! https://youtu.be/ei0zZVjysys
SHOW and TELL 5/17/2023 #ShowandTell
Finally
What's a FY6900-60M?
And how it differs from a scope?
A scope lets you look at signals, that's a signal generator that produces signals.
pivoting from the chat in #help-with-circuitpython, I do like the idea of a self contained "digital coffee cup" but that's probably a little outside of my expertise level for actually manufacturing
might be fun to hack together a prototype though
to put the temp sensor in the actual liquid might require a special cup
I like your idea of hacking apart a double walled cup to install the heater and not have it be actually immersed though @fickle ridge
you can stick the sensor to the bottom but would that be good enough? i dunno.
especially if you wanted the built in heater on the bottom instead.
might actually need a triple walled cup
I don't know that the temperature variance in a regular coffee cup would be significant, but in a taller mug I guess I'd want the sensor near the top since that's what actually would be hitting my lips
ah that's a better idea
but as you drink the level changes
would need to be on a float?
ah yes, physics is a pain sometimes
that or a strip of sensors down the side I suppose
float switch also means you could monitor your coffee level remaining even with a lid on 😉
"Here is my coffee cup build. It keeps perfectly heated coffee but is now wired to my computer, is 16 inches tall, and weighs 2 pounds" 😆
lol
Coffee Stasis Pod ™️
there would definitely be additional weight. by the time you add the heater, float, temp sensor, display. yes. still would probably be worth it. the ultimate coffee cup.
or if you're going steampunk I guess it has to have a name like the Coffee Thermostabilizer
flexible e-ink would do well for a display and would keep the display on even after it runs out of power.
Coffee Punk sounds rad.
speaking of coffee, my organic sensors indicate an inadequate level exists in my cup currently.
oh yeah those are hard to compete with
the cup with sensors
you obviously can stuff multiple sensors into the hollow wall and glue them in to measure coffee temperature at various heights to determine mean. maybe even add a magnetic stirr bar to uniform it.
the heatsink to bottom of cup needs a ring to seal the vaccum and the peltier in.
i guess below the heatsink a printed plastic? enclosure for microcontroller and the wireless coils to receive power from a power pad
routing the wires thru the vaccum seals looks nasty.
do some of them have hollow plastic bottoms? sounds ideal for hacking, that's awesome.
i thought they were double walled all the way around in 1 process
i doubt it, i'm pretty sure they're all stainless to keep the vaccum
i don't own one, i have a regular ceramic mug.
you could print with ceramic 3d printer
they all have this "cup" bottom
i wonder if it is pressed on
i doubt they deep draw the stainless accurate enough
I think most of the double wall ones are hollow all the way around and only attached at the top
vacuum insulated have that hting on botton yeah
OMAX waterjet VS.
insulated travel mug
subscribe for more things Cut In Half! https://goo.gl/UrGqEW
I would argue this as a function of what kind of sensor tbh. I wouldn’t put any non-encapsulated sensors in the liquid, but a lot of the encapsulated analog sensors would work great for this. A nice thermistor would be perfect so long as your wires are dishwasher safe (or nonpermanent haha)
you could design heater element on bottom
with RISC-V soldering iron have heater element what heat faster to desired temp
i wouldn't immerse the sensor into liquid, i would glue it inside the hollow walls
~1mm of stainless changes temperature quick enough to give a good reading on the liquid
does look like there might be enough space for a really compact build in the bottom. would have to be a custom pcb and could withstand the heat from desoldering itself apart.
having all on bottom could be great when its sealed
The hard part is getting into the hollow walls without losing the thermal advantages of a dual-wall mug?
peltier, when the coffee comes out of the machine it's too hot for him. so cool first, then heat to maintain. just reverse polarity on the peltier.
saw it open, replace bottom to make room for components, add valve, harvest compressor from old fridge as vaccum pump.
There are smart mugs that do pretty much this on the market today.
oh really. sad.
really? but do they have a float switch and display?
An accessible valve is a good idea
i was about to try convince him to buy a metal lathe and get into spin drawing sheet metal.
Not sure about Peltier but definitely heating elements
i think adam savage just had a video about cutting the bottom of a glass bottle with a special circle cutter bit.
Some have a display on the lid, but I highly doubt the float.
And are they steampunk styled with brass fittings and analog dials and far too heavy to be practical? We might be missing key market segments you know
A float sounds like it’d get in the way of my drink
could just advertise it as a workout weight dual use feature
I’d probably start simple and just have a temp probe go down from the lid. Peltier is nice but building a good Peltier driver isn’t easy.
nah put it in line with the handle, no one drinks from directly in front of the handle...
or you could add a brushless motor with an encased propeller, some gyros and accelerometers, record typical drinking motions, and run a neural net to predict further drinking motions, and then have the motor and propeller generate lift to assist in drinking to counteract some of the weight. needs a small lithium battery, something with super high discharge current capabilities and maybe some DC DC buck converter to increase voltage ?
lets say you design thermos bottom part and have thermalcouple on it https://www.pine64.org/pinecil/ like that soldering iron have on tip
Thermocouple? In a mug? That’s way more temperature range than you would need. An NTC is probably much more cost effective if you factor in all the additional hardware needed to take readings.
the prop could double as a cooling fan to cool the heatsink for the peltier.
@dusty citrus Well firewalls aren't just for internet traffic. They help with lan/wan safety too. why are you running a pc can bus through the phone ip line, that's so weird. you didn't say which pc's you want to connect either. plus you should have all of them on vlans and have the firewall do the vlan routing through the switch.
Downside of a community garden area, is the community kids pulling up your plants…
I had some fairly big kale plants that sometime between 10am yesterday and this morning, got pulled up..
Yeah..
I pay money for the garden beds too.. just frustrating
distance? wifi camera?
Hello! You might want to consider learning how to solder
They’re probably a solid 500m from my townhome
This is kinda what I had in mind originally but I forgot where I was when I was idly wondering things aloud 😆
I thought about a small cellular connected camera setup
What's the point though? It's not like you're gonna sue them or something
But then I’d worry about someone stealing the camera
that too
No, but we can let property management know and they usually will talk to/fine lease holders who’s kids are messing with stuff other people pay for
Make them eat every leaf of kale that they pull up. That'll teach em 😆
Mostly because it will cost property management money to fix the messes made by kids in the garden beds
Last year before I moved in, three of the children in the community flooded all the garden beds and cost the community a few thousand dollars to replace gravel, soil, and pay the city for the gravel being washed into the drainage
oh wow. I guess their parents aren't really all that involved with teaching their kids to act respnsibly
🙃
That’s accurate
Utah is a free range parenting state
So many parents use it as an excuse for not parenting their kids
I was thinking these were just harmless kids messing around like I used to do and not realizing what they were doing but that sounds pretty destructive
True but not now
when i was like 13-14 my dad build me a crossbow and let me wander the town with it to shoot stuff. his only comment was "uhh don't shoot anyone, right?"
Just anyone??
So you could shoot protected animals
That's fair! You will need to learn to solder once you want to exchange signals (I2C, SPI, etc) between boards though
I've only ever seen the term "free range" used for chickens. I am trying to understand what kind of newfangled specific American thing "free range parenting state" would mean
I guess it has to do with how laws are structured?
Still, weird term to use 😅
Stick a tall pole in the ground with a fake security camera. Cheap solution. People are more likely to do mischief if they think they have complete anonymity.
It means you won’t get your children taken away if you let them wander by themselves
They do that in America?!
I was a very animal-friendly kid. my dad knew i would understand "anyone" also means animals.
Yup, child endangerment laws are wild here
I mean, there's child endangerment and there's letting your kid walk home from school once they're old and responsible enough
yes, the government will take your kids away if you are deemed unfit to be a guardian.
Let your child ride their bike outside of the neighborhood? Some Karen sees them? Doesn’t like children? Say hello to cps
i dont think there is much to learn about soldering. if you have decent equipment it's super easy. It's only difficult with really bad equipment. A good iron, some flux paste/gel and non-crappy solder and it's a breeze
generally only happens to those with hard drug or violence issues.
That makes sense. It's how it works in my (and I'd hope most) country too. However, the definition of being unfit to be a guardian seems unfair if it is what skerr is saying above
My wife has a friend who has a child who is autistic who is a handful and throws violent fits in public. She endured 4 months of monitoring by child protective services because a neighbor saw her trying to get him buckled in the car while he was screaming.
What
I can walk the whole apartment by myself
I know where the garden is and all that
The rules and regulations do vary by state, but generally no state considers a kid walking around in the suburbs as endangerment.
while it does seem an infringement on personal liberty it's also a way to try to ensure society isn't propagated unabated with the worst aspects of humanity. long term it's a good thing overall.
I don't have anything to say on the matter, I'm a foreigner who has never lived in the US
The ease in which a child can be removed from a home is why Utah law makers passed their free range parenting laws
Or that’s the logic used anyway
Red flags get raised if the kid is walking around with bruises or is in an area kids aren’t supposed to be wandering around in, but they’re not that unreasonable. More of the horror stories are caused by “anonymous tips from a concerned neighbor.”
Please complain that damage to management and get their parents to compensate the lost
what are areas kids aren't supposed to be wandering aroudn in?
Do people actually maliciously and falsely accuse people of such serious crimes? There's no penalty for that (similar to abusing emergency services)? (Re: "anonymous tips from concerned neighbors")
Think nonresidential areas far from schools or homes.
kids do stupid things, they make mistakes, part of growing up.
that's literally all i did as a kid
They’re supposed to be anonymous, so only in extreme cases are cases like this ever investigated.
when i was a kid we played in the woods, in the fields, in old industrial places
Oh yeah I can walk the whole shopping mall myself
Depends on how old the kid is too. Most teens are basically treated as adults.
i once destroyed the back of a construction building, throwing things through it. i got caught and had to work off the damages. it was honestly a good lesson.
Ah, I thought the tip line knew the user's identity but kept it a secret from the accused, as some sort of witness protection thing
I’ve personally known people who’ve dealt with unreasonable “concerned neighbor” tips to CPS. It does get abused quite a bit in certain states. Less so in others
Until they’re caught, anyways.
so if you catch the kids, make them work off the damage by working in the garden.
uh idk 2nd 3rd grade you're old enough to walk to school right ? so you get to go out for an hour or two or something and play wherever. once you're older you eventually stay longer until agreed upon back-home time?
idk.
Problem with my situation is I don’t know who did it. I only know of one kid who’s known to do those things but I’d rather not name names without evidence
And get them to install the CCTV, a raspberry pi monitoring hub and tailscale for remote access
It’s pretty bad, actually. Outside of CPS, anonymous tips have been used pretty frequently to send fully armed SWAT teams to “swat” streamers during their streams…
And some have died from swatting
there's pre-hardened abrasion resistant steel like AR500 you can get in large sheets cheaply
also laser-cut to size
just put an inch of that under some hardwood veneer as a door
no more swatting.
Yeah, I know about that. I think malicious actors have tried to replicate it in Europe too
yeah umm swat teams can take down an entire outer wall, they don't need to go through a door. 😛
did you consider concrete as a wall material
I’m not so much upset about kids being kids.. just that I pay monthly to use garden beds and food I’ve spent a lot of time growing just getting yanked out of the beds sucks..
it's quite cheap
Well, I don't remember destroying other people's gardens as a kid! 😅
could make up some fliers and put them in peoples mailboxes. someone, somewhere will have a kid they'll question about it and maybe that'll be enough.
I mean, there were some active “militia” groups holed up in concrete bunkers and forts. Kinda excessive for someone who just wants to broadcast video games on the internet.
We have rooftop planters here, which never get harassed.. but weeds have taken over for now.
The modern internet appears to require nation-state-level operational security from its active users
Mail boxes are in little metal boxes by the road so not really an option
if you need to build a bunker to play video games then you seriously need to think about not playing video games 😆
We informed management which is about all we can do
Maybe I’ll put up John Wick pictures around the garden beds
That’ll scare them
But instead of a leash in his hand for his dead dog, it’ll be a bunch of kale
That's going too far! :P
You’re right, my photoshop skills are not that good
mine are, what do you need?
Nothing lol.. I’m just gonna see what management does.
Its pretty funny in the US kale is seens as hipster vegetable.
Meanwhile in the netherlands its seen as more of common man winterfood xd
But anyway, if stuff keeps getting pulled up.. I’m just gonna pull my stuff out and stop paying for the beds
Can anyone recommend these E-ink shelf labels that are easily hackable?
They are so cheap and low power, its great
@tardy badger
It's quite annoying that my buns love kale, but it puts Lillie into gut stasis. 🙁
That's perfect
Maybe someone thinks they're weeds. Are they small? Maybe they think they're actually helping to pull up weeds?
we make lightly fried kale occasionally as a snack. I love how crispy it gets, and it's a lot better than a bag of chips for me these days.
This is what people in the netherlands eat https://vegarecepten.com/en/dutch-boerenkool-recipe-mashed-potatoes-with-kale/
But only in the winter xd
looks delicious and nutritious
Definitely looks like a winter dish :P
I think the thing with the hipster thing is that hipsters were eating it raw, while they tend to cook it in Nederland.
They were larger than my hand
And weeds or not, people shouldn’t tangle in stuff that isn’t theirs
Absolutely.
Yeah and kale is not the grossest vegetable around
I asked the onsite handyman if he wanted the planters cleared...
He told me to just leave it.
shrugs
The problem is no matter what’s said by management, if parents don’t care then nothing changes.
I don’t really know if there’s any meaningful recourse outside of lodging a complaint
Or just plant some giant hogweed, gimpie-gimpie, or plain old poison ivy (and avoid it yourself)
Please note: Sarcasm.. I do not promote blasting people with rocksalt
They gave me an exercise so I can understand things
I figured out, I forgot a cable.
Although I don't get what are those tags for
Alright stuff is connected to the switch on port 2 and 3 for example, they both share 2 tags for example an untrucked camera and a trucked printer
How does the switch recognize which one is which, if both tags do share the same port?
Its not that bad
I wouldn't know... it doesn't happen here, thankfully. 😄
You could mix rocksalt with birdshot, so you can give someone a... salt and peppering. 😛
probably short hand named tags for vlans. T is generally trunk, your main in/out.
Lead poisening D:
lel
Indeed, but if a port is config to support more vlan at a time
How does the switch recognize whatever is plugged in, and put it in the correct vlan?
I wonder, at the scale this is happening in the USA, do "gun nuts" get enough lead exposure for it to be medically significant?
Yeah, according the gun youtuber garandthumb yes
switch will only route tagged packets to vlans with those tags. subnetting can get complicated.
you would normally configure tagging in your switch, not the router or firewall.
Mira Safety (Best commercial gas mask) - https://www.mirasafety.com/
ACRE GOLD - https://lddy.no/ggyv
SDI - https://www.sdi.edu/
Xidax (My Computer Sponsor) - https://mbsy.co/xidax/99898713
Onward Research (Holsters Out Now!) - https://www.onwardresearch.com/shop
LAS CONCEALMENT (Onward Research Holster Out Now!) - https://lasconcealment....
Alright but for example when I get a plug and play usb device to work, the usb has an id that comunicates a code to the os, which will then proceed to install the correct drivers
But if I connect like a phone and a printer, how does the switch not misslead the comunication? If a single port can be both tagged and untagged and support multiple vlans?
wlans can also be setup with zones so things get pretty complicated if you're working with wlans. no two networks are really configured the same so you have to know routing pretty well. vlan tagging is 802.11q protocol.
i don't think comparing vlans to usb cdc is a good way to associate it.
i think of tagging more like traffic lights
would recommend looking up some youtube videos on switch tagging, videos will do a much better job of explaining it than i can with text.
I got it, the id is a pointless name, they could allow extra ruling though
also don't trust tagging as a security measure, use firewall rules in conjunction with vlans.
Tagging is just that. The packet gets tagged with the VLAN number. The port will only pass tagged traffic that matches a VLAN it is configured to allow. Each port has a default VLAN. If a packet shows up without a tag, it gets handled as if it were tagged for that default VLAN.
Each VLAN gets treated as if it were a physically separate Local Area Network. Acts the same as if you had separate switches, but each port can pretend it's on multiple different switches. The only way it knows witch virtual switch the packet is intended for is with the tagging.
Yah, the big thing there is that, without VLAN tagging, you'd end up wanting to run a looooot more ethernet.
If you have a switchport configured to allow VLANs 8, 13, and 52, and set it to default to 8, then it's like that port is a part of three different switches, one for 8, one for 13, and one for 52.
It's a feature that's in the electronics of the switch, understanding that when I say "electronics of the switch" I really mean "at a lower place in the tower of individually programmable often much more specialized CPU cores that create the hallucination of the modern computer"
A packet comes in tagged with 52, the virtual switch for VLAN 52 handles it. A packet comes in with no tag, the virtual switch for VLAN 8 handles it.
That being said, yeah, sure, if you set up a VLAN and don't have a firewall to actually segment the network, it's window-dressing
yup, instead of a rack of switches with 200 ports and physically connecting everything like an old phone switchboard vlans allow a single ethernet cable to split traffic. a switch with vlan capability helps keep the size of the network rack down to a minimum. less gear, more capability.
So back to the phone and printer question, it is very likely that the phone is configured to tag its packets for the phone VLAN, and the printer is sending untagged packets that get handled by the native VLAN.
i honestly think chaining vlan aware switches downstream is fun to setup. it really helps to have a home lab setup where you can tryout different configurations without worrying about taking down an entire segment of a corporate network by accident (which will eventually happen no matter how careful you are) 😛
Does any of what I said above help?
Just buy small managed switches to configure into subnets lol
people honestly act like a hive of angry bees when they don't have internet access for more than 2 minutes.
There's this thing where I remind myself that I am a very experienced software professional who has spent a lot of time building infrastructure software and I should have a homelan that's more... impressive?
Except like I want to have time for funs.
I just have a Ubiquiti Dream Machine Pro
Nothing super fancy
more like that, people go looking for IT and everyone starts poking their head in the door like you good in here... 😛
then they gather outside the door like a water cooler chat session.
Well, slack is down :>
Their servers are.. slacking
so pro tip, if you accidentally take down part of the network just do yourself a favor and lock the door. all the people bothering you while your trying to fix the issue only makes things take longer.
Just put a sign out the door that says “sorry, I tripped”
or something like that yeah. maybe use an adafruit LED matrix with animations and marquee text to keep them distracted looking at pretty lights.
"We are aware of the recent connectivity issues. Please stand by while we are working on a fix"
"yes the internet is down, yes we're working to fix it right now" when your still kinda new to vlans will be a sign you will use regularly. again, home labs help you avoid a lot of pitfalls you'll run into on the production servers so those signs will be used less and less.
Ubiquiti makes it fairly easy to not mess things up I’ve found
Though I did remotely dead a network last year lol
Had my sister go out to the site and factory reset everything so I could reconfigure the network
yup sometimes you will need to call in and say hey can someone press the reset button lol.
Or all the reset buttons. Though thankfully I was able to get the security cameras back up without having to reset them. Just the network switch, the cloud key, and all three APs
lol
actually had someone do that once who was not authorized to be in there or make changes. she was like oh i just deleted a setting on the server so i can do x
i was like you just did what now
and voila automated backups stopped working and she borked a weeks worth of data
We had an awful sysadmin at a company I used to work for. The president of the company instructed the web team to have the new site up by 3PM. But the sysadmin refused to transfer the files. Knowing he was a snoop, I went into my office, typed vi syscrack.c and waited. Sure enough, a few minutes later he was in my office yelling at me for “hacking the system”. I asked him “Why do you think I'm hacking the system?” DON'T LIE TO ME! he screamed, and the picture of innocence, I pointed out “I asked a question, a question is not a lie.” He nearly burst a blood vessel.
Bizarrely, a couple of years later I got a call from a company who he’d given me as a job reference. Needless to say, I did not give him a glowing recommendation.
Sysop(derogatory) summoning ritual
He literally got a lemon
I worked with a sysadmin that used to read everyone's emails, every single email. So I started sending emails to people with a footer "this email will be read by the system administrator".
I remember the days of X-NSA-Fodder headers and footers
The idea of lucking into an instance with such a sysop is one of the reasons I'm not getting into mastodon
(The other being that I was never able to get much into twitter anyway)
“Here be dragons...”
I missed this joke, but I'll pretend I got it anyway 😆
Abandon all hope, ye who enter here
As long as people understand that it's not e2e and shouldn't be used for sensitive info, it's fine. Not much different than any other social media service. Advantage of something like Mastodon (or Twitter in its heyday) was that having separate accounts for separate personae and interests is a fine way to keep the One ring from ruling them all (a la Facebook).
Social graph is personal, I never understoof why so many people were so willing to put it all out there.
Ah yeah, of course, I was mostly referring to the possibility of some nosy sysop going around and causing drama
with great power comes great responsibility
very few systems manage to avoid having some unknown character having too much power over your data
in the beginning there was a push for openid what we know today as SSO and there was a huge backlash of having 1 login for everything because... reasons. they finally did it though and all these systems are interconnected. the fear from back then was it would be used to track you and your online habits. of course that's exactly what they did with it.
yeah, that's exactly why I've never used SSO or sign in with Google or any of those kinds of things... one account = one unique set of credentials
(even unique email addresses)
I don't wanna outcry about the job that I got but
They said that tomorrow I should edit a text in html on a wordpress site
I asked out of curiosity which plugins/gui stuff they used since I've used worpress some time ago and didn't like it, so I can look up at doc crap beforehand
They say to me that I should only edit the html stuff
Ok?
ah clients, gotta love how vague they can be
That's actually from my boss
Why would anyone want HTML on a PHP CMS? lol
sounds like they have in-line customizations, how much you wanna bet what they want done will actually be in CSS and not HTML. ;P
As I saw from the website is plain unformated text
It may also be that they want to test out stuff from my resume, since the last weeks I've done nothing (because they gave me nothing)
there's a saying for that, not sure how well known it is. "sweep your porch before you sweep someone else's"
Ohh Digi-Key is rebranding
📣 Just announced
With respect to the past and excitement for the future - we're making some changes
Learn More: https://t.co/4VlcN0b2tl
New logo, colors. No name change
ohh ok
I don't understand the glitching effect... generally glitch isn't something you want associated with electronic components.
though they do sell the MCP23017
it's showing the font change - each letter change is a basic electronic component
will a non-electronic person realize that? no.
Isn't that their customers?
"we are going techical"
is that a play on words or...
the released video
keep in mind this stuff is done by pr people, who don't necessarily "talk" to engineers (or at least not very well)
I don't like the new logo :(
the video puts everything into a better context. yes good job.
We may look a little different, but we're still Digikey.
We get technical.
The rebrand removes the hyphen in digi-key also.
which I think is a good move, just my opinion
Speaking of logos that look like components...
Yes. However, it looks like a “capacitor bank” to me
Ah yes, time to store my money in the big capacitor
I guess “Coulomb Trust” would have been too subtle?
Now I want a capacitor-shaped piggy bank :P
This is the first time ever that my wife and I have managed to get an orchid to bloom a second time.
No joke.. and the fact that there are 8 buds for blooms brings me joy 🙂
👍
Question: Is anadigm the only surviving FPAA vendor?
Okika Technologies appears to sell a board?
I don’t know if it uses Anadigm chips though
thx, going to check
Field Programmable Analog Array (FPAA) High-performance FPAA that is flexible and easy to use. Our platform reduces design time to days versus weeks or months. You can quickly design complex analog functions into a fully qualified chip. Alternatively, you can build your circuit even faster using one of our predefined combinations of configurable...
Ohhh they have a Field Programmable Mixed-Signal Array
Link 404s though
Maybe the license the architecture?
It's possible!
I imagine it’s pretty tough making an FPAA
Though.. I think maybe they aren’t in business anymore
No recent social media posts
Last Twitter posts were 2019
Any recommendations for software to draw circuit diagrams?
What kind of circuits?
Like ones you’d turn into a physical product?
Or are you more interested in simulation?
Uh idk, this is where i'm at. Imagine sprinkling in some port extenders
I have some prototype boards, might end up ordering some custom PCBs, idk yet.
Okay.. so Okika Technologies is still open according to the California SOS
If that’s the case, KiCAD would be a great place to start on both accounts
People have made some simulation plugins
Interestingly, same slide as https://www.anadigm.com/_doc/trainingdocument2.pdf sld13
So, definite architecture licensing
How many in the anadigm ones?
The anadigm ones seem to be literally the same part :P
See the presentation I posted above
I'll try that, thx
Apparently the FPGA PSoC from Infineon had programmable analog blocks
Cypress still makes something called the PSoC
Though I'd struggle to call that an FPGA
Bad characterization of an old article
Or my brain malfunctioning
It’s a cortex M0+
With some flexible ADC,DAC, and comparators
Yeah, it's a cool little chip, but definitely not a Zynq competitor, digital-wise
I wonder how much it costs
$2.42 for a single
Plus supporting circuitry
Probably an NDA for the full datasheet
👍🏻
There are programmable mixed signal devices like renesas’s greenpak ICs?
I guess better question is what you’re trying to do with it.
Are greenpak generally available?
Yes they are
Most seem to be non-stock with Digi-Key 🤔
On Digikey and Mouser last time I checked, but the variant I want isn't in stock so I didn't pick them up
Whoops
Yeah like I said, the chip comes with that socket adaptor
SLG46537V-SKT
You kind of need them to do prototype so I guess it makes sense for them to bundle with the programming adaptor
Yeah, true
Though it is programming with I2C
This SLG47004 looks nice https://www.renesas.com/us/en/document/dst/slg47004-datasheet?r=1563291
The issue is probably One-Time Programable
Oh wait
You shared that 😂
My apologies, my brain is a bit foggy right now. Been sick the last few days on top of allergies
Nah, I was just posting the stuff that is in-stock without actually looking at the spec
SLG46826 looks nice, in stock at Mouser
...and I file this under strangest application notes
https://www.renesas.com/us/en/document/apn/cm-359-portable-washing-machine?r=1570446
Not as cursed as the MPQ8875A
But there are certainly more cursed footprints
There are definitely more cursed footprints, I was just filing it there with them lol
I gotta give it to them, Renesas seem to be very creative with their application notes
Washing machine, blinds controller
They make cheap chips for everyday applications, so it makes sense
I imagine you’d find their chips in a very broad set of appliances
I found CAD files for standard picos, but i noticed i apparently bought some clone with a bit of a different layout. Does this design have a name to google with?
It's a 16MB flash, USB-C equipped raspberry pi pico clone i guess.
Not sure, you might check the listing your purchased it from
If I had the disposable money and spare time, I'd definitely get a greenpak devboard
It even has an integrated signal generator
The listing wasn't very helpful, i ended up drawing even the pinout myself by copy pasting off other pinouts and some trial and error
Though the simple devboard without them goes for "only" $39
It's just listed as RP2040 TYPE-C Lite Black - 16MB
It looks like you gotta measure your board's dimensions and adapt your design to whatever you've got
That's one of the problems with the cheap clones, you pay in time
Well i had no clue what to look out for when i bought it and it was like 3 bucks so
Well, enjoy the challenge!
what challenge?
Of adapting your design to the clone
there is no design so 🤷
Ah, I assumed you had something you needed to work with, since you were looking for CAD files
i want to build an I/O shield to plug this into to connect to various other boards
👍
I dont really have a use for any of the standard shields that are offered so i have to do my own thing anyways 🤷
It’s still a standard header, I’d be surprised if the standard pico footprint didn’t work.
i compared the pins, they're not in the same places.
This is the cheapest Avant FPGA coming from Lattice Semi
So many pins lol
0.82V voltage supply
No idea what I’d do with 192k logic cells
Ohhh they support MIPI on the pins 😎
Ah whoops, thought I clicked the fpga chat lol..
Should I use the inbuilt thermometer of esp-32-s2 or buy one myself
An external temperature sensor will be more accurate for the environment than the built in sensor in the esp32
my QT Py S2 is reading 95°F right now, in a 70°F room ...it's never really going to show you ambient temp
dw, it's not like all the FPGA discussion isn't taking place in #general-chat, to the point of it being the honorary #fpga channel
:>
Run a complex soft core! 😎
on board temp sensors are good for measuring the temperature of the board, nothing more.
which isn't an issue for most situations but if it's say sitting inside a gear closet, in the middle of Florida summer at 120F you can have it automatically shut down if it gets too hot. that's honestly the best use case for an on-board temp sensor.
now you might say 120F ha there's no way... yes way. monitoring that closet temp was part of my old job. imagine walking into a hotel sauna that has racks of gear in it. that was my daily working environment. it's cheaper to let gear fry from heat and replace it once a year than to pay for AC to cool the room. it was literally part of their business model.
it used to get to 140°F in my attic until I had it properly ventilated when replacing the roof, now it only gets to 120°F max. But I do have quite a bit of electronics in there (that will soon be moving to a new part of the attic that should always be close to room temperature).
I did it
How can i decode this to str
b"H'\xe2^\x1a\xec"
got it from wifi.radio.ap_mac_address
bits = b"H'\xe2^\x1a\xec"
':'.join(f'{b:x}' for b in bits)
should do the trick
(assuming you want a traditional mac address formatting)
ended up letting homeassistant sorting the device with the unique id and the ip address from the esps2 and gateway
I've experienced this too. My adafruit playground XP got triggered while the room temp was 18oC and the trigger temp was 35oC. I'd really want it to be triggered say from the temp of my coffee or tea, if it fell below a threshold. I guess I'll have to use an external temp sensor
Fun fact: Copper is a fairly good conductor of heat!
So, your measurements will be tainted by heat coming off the ICs
should i make a makeshift button with magnets?
That sounds like a neat build, I'd say yes
The inside of my weather station will reach 120F+. Well it's also a clear box in direct sunlight
It’s just a good conductor in general 🙂
Also fascinating brass and other metal pipe fittings electrolysis over time
Gents, sure this has been asked B4... Why are Raspberry PI's never available anywhere? Do they even make them, or very slowly in small lots? I have no idea. If they're never in stock, shouldn't Ada just remove them? I'm just a normal peon out here interested in getting one to learn Linux, etc. Be kind... 🙂
News flash: Metal with many and loose free e- good conductor of electricity and heat
Pimoroni has 4B 4GB as of like 15 minutes ago
They are (sometimes) in stock, they just sell like hot cakes
They’ve actually been in stock since yesterday surprisingly
Due to limited stock and high levels of scalping we are only allowing logged in customers that have ordered from us before to buy this product – learn why and how.
:(
at least the prices are coming back down
Yeah, Pimoroni also has lots of kits in stock
Thanks, yeah I know 2-factor ordering, but they never have any...
I’ve already seen more stock of Pi4’s in the last three weeks than the last 5 months
if you want to hold your nose a bit, Amazon seems to have access to some more now
Who knows, perhaps we'll be able to get nvidia GPUs for a reasonable price next! :P
To my knowledge it's the onboard Micron RAM they're using that is hard to get. All the other components are easily available.
Pimoroni seems to have discouraged scalpers by selling bundles that cut down in scalper margins
Doesn’t seem likely
I know, I was just being ironic :)
NVidia seems to think they can just charge whatever and people will just buy it
At some point macroeconomics comes into play and the number of people willing to buy drops off significantly
crypto mining will be replaced by AI crunching, no doubt
You stole the words from my mouth
You can go with CPU's that have on-board graphics. You won't play a lot of high end games with them but it'll work for most personal PC uses.
It's funny that the price of GPU's started skyrocketing shortly after motherboard manufacturers stopped putting on-board graphics into most motherboards. An external GPU became mandatory instead of optional for most motherboards.
On-board graphics are a part of the CPU, not the mobo
iirc, not originally
lol
Yes, that is actually a very recent change. On board graphics used to always be ON the motherboard.
Amazon sells double the $$ of Ada
You're probably right, and I accept the ceremonial egg on my face
hence the term "on-board". today it's technically "on-cpu"
MB manfuacturers stopped doing it because everyone was buying external cards, so it became (basically) a loss-factor
eh - i just remember when I switched over, that's all
not for most business, productivity workstations. those used to have no need for an external GPU
the default configuration for all motherboard ended up gravitating towards "gamer" builds... and we live here now.
"business workstations" caused a bit of a flashback to PS/2 from IBM and those razor sharp hole covers
In a PC build, I typically dump most of my budget on the CPU. Traditionally, this left no leftover cash to get a GPU with, and since gaming is not really a thing I do, I've only ever had a computer with an external GPU exactly once
cases have come a long way too, they used to be razer sharp. the avg case today is like 10x nicer than the avg case from 20 years ago.
also most cases used to be steel, heavy heavy things you'd have to carry to lan parties 😛
plus your 50lbs CRT monitor
Oh you meant Pimorni not Ada... my bad.
I think that's a new change from pimoroni?
looks like Pico's are generally available now
Oh you can buy a Pi Pico in reels. I got 10 of them and they came on a plastic reel strip.
I gave them away with the TR-Cowbell.
'way beyond my capabilities, wallet, and space constraints 😀
Well they were $6 each so it really wasn't that much.
oh, i just have to watch my budget - too many shiny things (and no place to put them)
Every week adafruit comes out with a new shiny thing that's too cool to pass up. :/
and now i have 100 unfinished projects
DJ - I was JUST gonna say the same thing
i managed to point to a thing and say "ok, that's 95% done"
I'm working on a cool new project and then Adafruit is like "hey here's an even cooler new shiny thing"
YES!!!!!
Ha, can't lust after the cool new thing when you can't make anything! :P
(I'm surprised this message passed the filter)
trust your technolust
This sounds like a generic vice prop from a bad cyberpunk novel
it's from the movie hackers 😉
Funnily enough, I haven't watched it
Great movie, Angelina Jolie before she became... how do I put this... Tomb Raider.
Sneakers holds up better
after all this time
still trying to figure out how the blank they got Sidney Poitier!
and both
well, this one is 30 years old so not necessarily surprising
I mean, it's not like I'd have to go to the downtown video club and hope they have it in stock if I wanted to watch it
It's just that..... I guess currently watching movies does not really work for me
I still insist those were her best films, after The Bone Collector.
She was really good in Eternals too, I think.
My wife struggles with watching movies as well
Even TV shows
interesting - i'm in the same boat
Yeah, I'm not really into TV shows either
(Or netflix series or whatever equivalents)
diy, cooking shows (guy fieri rules!) and Lego Masters
The show has to be particularly interesting for my wife to watch it
Our cooking shows suck
The recipes are way too complex to reasonably make at home, and are mostly a way for the big chefs to promote themselves
I mean, if I need to take an entire day off to make meal, what's the point? :P
Or they make stuff like.. taycos with peek oh deegayo
oh, the ones we (mostly) watch are the competition cooks - pro competition chefs are amazeballs to watch
The Cinco De Mayo Great British Cookoff was a disaster
Ah yeah, and super exotic ingredients costing, like, 1000$/kg or something :P
Or only found in organic hippie shoppes
the what. the. bleep?
(Nothing against hippies or organic food eaters, but you know what I mean! :P)
Buy Uncle Roger's full standup show THE HAIYAA SPECIAL now to watch from home: https://www.moment.co/mrnigelng
British people coming for Mexican food now... How they gonna do?
Go subscribe to Uncle @JoshuaWeissman, he the best!
Use code UNCLEROGER to get 10% off Uncle Roger's favorite soup dumplings (US only): https://thexcj.com/discount/UNCLE...
Lemme guess, wanton cultural appropriation gone wrong?
pardon me while i watch the apparent train-wreck - be right back
Lol
...Started watching this. It's worse
The only ingredient I use that has that kind of price is saffron, but I doubt I'd use an entire kilogram of it in a lifetime
This sentence was said firmly tongue in cheek
I tried to clarify it with the :P in the end, but, sadly, text can only take you so far
I kinda wondered. There are chefs who use gold leaf and the like, but that's not really my thing. I save my gold for switch and connector contacts.
Sorry!
OH. MY. BLEEPING. BLEEPING. BLEEPING. HEAD!
It hurts to watch, doesn't it?
From the off-color "joke" in the beginning, to.... whatever this is
Yeah, it was.... bad.
It gets worse
my wife informs me that is putting it very mildly
Yeah. The show would have ended better if everyone’s cooking stations combusted
I do feel fortunate that in the US we have at least a fair bit of food diversity
Like, I can get authentic Thai food from a place 5 minutes down the road run by some Thai immigrants who speak enough English to do business. The food is so good. They’re so nice and they give you a ton of food
And it’s also kind of funny how you can go to most significant town (2000+ population) and find a Mexican restaurant lol
Though on thing that’s weird to me with where I live.. there is only one or two Mexican restaurants in the entirety of the region I live that has white queso and I haven’t run across one that uses queso fresco and queso quesadilla in their quesadillas
All cheddar based cheese sauces and quesadillas
god help me that made me so uncomfortable to read that