general-chat

[rapid geode]

tada!

[fluid swift]

Screw cost effective I'm getting the newest one

[glad ruin]

Those heatsinks will... not help with anything.

[tardy badger]

Where is the heat supposed to wash its hands then?

[blissful roost]

At the heatbasin, like everyone else!

[tardy badger]

Actually it’s the heatering hole

[blissful roost]

So long as we're not applying trickle-down..

[fluid swift]

Probably not but oh well

[honest moth]

My Protogen comrade, please get the officially supported fan and heatsink combo.

that was made to clip onto the board itself

I say this from experience, you will save yourself several headaches and thermal throttles.

[rapid geode]

hmmm.

option 1. or option 2 swap the ebony and padauk

[sterile walrus]

Does anyone know of a raspi project for an ai virtual pet or terrarium? My goal is to have a spare monitor showing an ant colony or village that will evolve without needing any interaction from me

[solar kindle]

I like option 2. Seems more aesthetically pleasing in a way I can't quite articulate.

[dusty citrus]

I agree the reddish thing does pick up the eye more

[tardy badger]

One of my favorite emails to get is “your PCBs are on the way!”

[rapid geode]

im leaning to that one yes. orange middle/alpha numeric keys, ebony on the outside. bloodwood space bar and escape

[rapid geode]

woo

[fluid swift]

(Where would I get that?)

(Also I only got that one because it looked cheaper/as expensive as the 8GB boards without the heatsinks)

[jade oracle]

Hello, could you please tell me what is the correct place to share a project built using only Adafruit components ? A Discord channel ? An Adafruit forum section ?

[honest moth]

Pi Hut

[hard estuary]

There is the #show-and-tell channel

[fluid swift]

(Thanks :3)

[red perch]

Hello,
I am a video artist looking to implement these 4inch round displays. However I need some help building it out and coding in the short video. Is it possible to work with someone here and hire to support? Please let me know if anyone is available to collaborate or other recommendations. Much appreciated 🙂 - Vilina

https://www.adafruit.com/product/5793

[jade oracle]

Thanks 🙂

[honest moth]

👍

[jagged citrus]

i actually found a solution to the pi 5 heating problems

https://www.youtube.com/watch?v=e_sk8t4XNV0

this should work

[glad ruin]

That might even be able to cool a Core i9-14900K.

[rapid geode]

pft nah

[glad ruin]

Good point, the IHS would bend and damage the die from the temperature differential.

[rapid geode]

woo. model surfaces done.

[night crescent]

Desk of Ladyada - DS2484 Testing & Round Touch Screen Samples https://youtu.be/MUO_OD5AN08

Ladyada tests electronics like CH9328 and HX711, while also developing a DS2484 breakout for easier I2C sensor connection on SBCs without GPIO. Also featured are new round touchscreens and a RP2040 Feather Adalogger. Plus, a quick dive into 1-Wire interface chips.

[tardy badger]

Color is key

😀

[rapid geode]

very yes

next step is engraving. still working on the design though. so tomorrow

[tardy badger]

I was also working on a design today

[rapid geode]

ooh

what is it?

feather i assume

[tardy badger]

Fpga feather

Super speed

[rapid geode]

ooh

[tardy badger]

It has a MIPI interface for hooking up a camera or whatever to it

Supports up to 10G on the PHY

[rapid geode]

https://youtu.be/6F2rB6q0QLs

15 mins of pure ear piercing annoying motor hum

😛

hmmm.

black on the padauk with some accents. maybe the blue from the ESC text on the ebony.

(white will get dirty so i want to avoid that)

[brave copper]

https://www.adafruit.com/product/2341 what ic socket I can use with this sound FX? I wish to have it that if I have issues with it I can pop it off

[ancient rivet]

does the fab print help?
https://learn.adafruit.com/adafruit-audio-fx-sound-board/downloads#headphone-out-version-2002140

pins are spaced 0.1" and the two rows are 0.8" apart

[solar kindle]

Typically, I'll use break-apart male and female header strips for things like this. Not as low-profile as a dip socket but a lot more flexible.

[rapid geode]

main fonts done. not sure if i want function labels in another colour yet.

hmmmm. i think i want a graphics design based on equal length pcb traces. so my arrows and such have squigles...

[brave copper]

here's these type of headers

these might work with Adafruit's sound FX pin headers

[late fulcrum]

You can also use low profile sockets and flip pins or machine pins for lower profile assemblies

Those machine pin sockets don't work well with the square pins, but there are some options that can work

[solar kindle]

Yeah, I suppose, if you use the machine pin sockets with the male equivalent (I think they're called Swiss pin headers), you could reduce the profile considerably.

[vestal pier]

those are my goto's for socketing boards onto carrier PCBs

[void otter]

:))))))

before I give my tiny tiny pi a whirl, do I need to reinstall rasbian or can I get away from swapping it directly from a pi4
it's so tiny!!!

too late

gonna solder a little daughterboard for it so it works a bit nicer on my 3d printer

[sharp jasper]

does anyone know what those little blue toggle switches with multiple white switches in it are called?

they're used for like configuration

[glad ruin]

DIP switch

[sharp jasper]

awesome ty

[void otter]

I also gotta ask, has anyone tried to retrofit a C port onto a pi zero

[paper meadow]

I was hoping not to solder for this project but I can’t find a connector for these.

[patent hemlock]

JST SM 3-pin?

[paper meadow]

It’s strangely not centered right. The listing said 1cm but it’s actually 12mm wide.

[sharp jasper]

i just said the dumbest thing ever
i'm sleepy and i asked my friend 'can i attach multiple things to one ground wire (obv yes)' and when he said yes duh i said 'wont it lose ground?'

[void otter]

headed.

[rapid geode]

every keyboard needs a pie key

not sure how well that will engrave, but we can try!

[void otter]

assembled
XL 6009 module good to 2-30v

need to wait a bit until I use the zero as I don't want any unevaporated ipa to ruin my day

[solar kindle]

I might have to pick some up and play with them. Definitely looks like it'd reduce the overall height of a stacked-board project.

[fluid bobcat]

Hello. I need a component/product that is rechargeable, has a CPU and some flash memory. What can I buy?

[solar kindle]

My go-to for small projects is the Feather M0 Express (https://www.adafruit.com/product/3403). ATSAMD21G18 processor, 256KB flash, USB port and a LiPo charger. Just need to add a suitably-sized LiPo battery to make it rechargeable.

[stoic mesa]

rp2040 feather is probably a better choice now - cheaper and more capable (e. g., has 8 MB flash)
https://www.adafruit.com/product/4884

[solar kindle]

I've got one of those sitting around and still haven't tried it out. Really need to find some time to play with it.

[fluid bobcat]

Thx bro

[fluid bobcat]

But you can easily add some flash memory yet? I need 8/16GB

[fluid bobcat]

Thx. And you can charge this via USB C port and write and read the flash storage?

[stoic mesa]

No.

This is a microcontroller.
It needs a LiPo battery; once you attacha that, then yes, that battery can be charged using the MCU USB port.

However, if you need 8/16Gb memory, you are probbaly looking at Raspberry Pi or similar, not at micricontrollers

It woudl be easier if you described what exactly you are trying to do. What kind of CPU? what is the use case?

[fluid bobcat]

I want to have my own product that can read/write data from the USB C port and also charge it via that port. The product itself must be able to work with that battery

Bit like powerbank with USB stick and with cpu

[stoic mesa]

Maybe M0 datalogger, together with appropriate SD card and LiPo battery:
https://www.adafruit.com/product/2796

[fluid bobcat]

Thx

[tardy badger]

There is an RP2040 Adalogger coming too

I’m pretty sure I saw a PR in the circuitpython repo for it

Ah yep, right here: https://github.com/adafruit/circuitpython/pull/9290

[fluid bobcat]

https://heltec.org/project/wifi-lora-32-v3/ is this also a good thing for my idea?

[umbral phoenix]

There are ESP32-S3 boards with 8MB RAM, and up to 32MB flash

[stoic mesa]

you said you need 8GB memory?
this one has 8MB:

[fluid bobcat]

yes but maybe can added

[next pine]

Hi all, a friendly reminder to register for Robot Startup Workshop hosted by Silicon Valley Robotics, IEE, and SRI on June 13th.

robotstartupmfg.eventbrite.com

[robust dune]

Idk if its the place to ask, but ifs
in case you have a Rp2040 connected to a Pixel led strip, how can be this controlled from PC? there is some software (free) ? or just programming the Rp2040?
Or there is a way to connect a pixel led strip directly to the pc and manage it ??? I dont think so but I need to ask.
I askd for the rp2040 because I have one RP2040zero

My idea is to install a backlight on the monitor, so the wall will be illuminated with colours but I want to manage the shapes and rgb lightining.

[patent hemlock]

which RP2040 (there's several packages) or you can use https://www.adafruit.com/product/5953

[robust dune]

I have a Rp2040zero and a Pimoroni Pico Lipo (rp2040)

[patent hemlock]

technically you could run a very small server-like application and client, but you'd probably be better off with the "direct" connection device

[robust dune]

like the one you linkd me ?
that one how works? have a software to configure ?

[hard estuary]

If you want to learn more about the Pixel Trinkey, it will be featured in 1.5 hours as JP's product pick of the week on the Adafruit live stream at https://www.youtube.com/adafruit/live

[patent hemlock]

there is also more information on the product page itself

[robust dune]

ya I just figure out when I click on the video and told me that the video will start in 90 minutes 😄

[hard estuary]

oops, time zones, you're right

[robust dune]

np

so... that is your unique suggestion to control directly on pc a Pixel Led Strip ? the Pixel Trinkey ?

[rapid geode]

eeep! it has begun. https://www.youtube.com/watch?v=eJ4lcLQyxFE

[rapid geode]

fail... cutter broke somehow

[dusty citrus]

What are called the motors that do not have a centric shaft, but having the whole exterior rotating while being void in the inside?

[tardy badger]

This is a nice looking board

[rapid geode]

O_o

a motor with a hole in it

hollow shaft. sometimes just called torque motors.

or direct drive.

or frameless

[twilit onyx]

Or hollow bore

[rapid geode]

you need a gold enig stencil logo

[twilit onyx]

Or through bore

[tardy badger]

lol maybe one day

[rapid geode]

its easy to add. i did my cat on mine. if you do enig it is just automatic

[tardy badger]

yeah, I just didn't feel like adding it lol

[rapid geode]

tsk

so i apparently broke my cutter cause it plunged into a black grain line on the ebony that is as hard as aluminium

was not expecting that

nothing ruined, but i need to wait 2 weeks for more cutters. in the meain time i am going to fininh the 8 "playstation" graphic caps and do the backs and stems.

[dusty citrus]

Hm. I guess there aren't any bike tire sized ones?

Likely it's cheaper anyway having a custom tire like a big bearing with a standard friction motor on top of the tire, but meh

[rapid geode]

O_o

bike tire?

a 700mm torque motor would cost liek $5000-$20000

and spin 10rpm

what exactly are you trying to make

[void otter]

deployed!

[patent hemlock]

and the first thing you start printing are parts for a noise/dust/environment enclosure (okay, for me it was like 4th, but you know...)

[rapid geode]

grow bag

creality has a few sizes. they work well. keep heat in.

[dusty citrus]

Eh bad idea then.
I was looking to make some hollow wheels for a bike..
Maybe converting the external frame as a big bearing, and placing on top a random motor would be better

[rapid geode]

been tried. the bearings will cost you $5000 as well and break first ride.

you want the smallest centre bearings possible, while still having an axle strong enough to support them

[dusty citrus]

Do you have any examples?
Googling I couldn't find that many results
I didn't think it would be sturdy, but I didn't think it would be that bad

[rapid geode]

even 5 microns in deflection will destroy a bearing. so anything large needs to be heavy, or it needs to be mounted in an aplication with uniform radial loading.

a bike is the opposite of those

google brings up hundreds of attempts

[dusty citrus]

I was using wrong keywords, thanks

[blissful roost]

How is it "hubless" if you're just making the hub bigger?

[dusty citrus]

Yeah... Stuff is expensive.
I will likely just convert my current bike with a vesc and call it a day

[rapid geode]

its nonsense. its a future fever dream from the 50s that people wont let go of

my cutter was trying to tell me something before it broke

[tranquil swallow]

@rapid geode is there a YouTube series you'd recommend for cnc

[rapid geode]

no

well. nyccnc i guess. he is annoying, but the info is sound.

john grimsmo is also a good one although he doesnt post much anymore

i like that these guys are job focused, as opposed to "today i need to make a cnc video on my toy cnc" focused. both of them went from table top machines to large industrial business with millions of dollars in kit. its a good learning progression over like 15 years of videos

[tranquil swallow]

Thanks

[rapid geode]

curing epoxy under a hot lamp 😛

[icy marsh]

Hey is this a good product? I wanna make a raspberry pi zero 2 w powered portable music player and this seems like a good fit for me. I am also planning to pair it with a pisugar 2 battery
https://www.adafruit.com/product/4454

[silver shale]

Sort of what it's made for.

[icy marsh]

Yeah sort of, I can probably make it work with a battery and stuff. Or should I just make something from scratch?

[silver shale]

Not sure if the two use the same pins

[icy marsh]

I can check that real quick

[glad ruin]

No version of the pi is going to work particularly well with a battery. They have no power management. Not even a sleep mode.

[silver shale]

https://www.sparkfun.com/products/13777 maybe this

[silver shale]

That would have to be implemented

[icy marsh]

yeah thats an issue. I already have a pi

[glad ruin]

That's my point. It can't be implemented. The hardware for it doesn't exist on the board or in the SoC.

[silver shale]

That's why I chose the Banana Pi M64 for the tablet since it has a battery header for the PMIC chip

[icy marsh]

off topic but cant companies come up with original names lol

[silver shale]

Yeah, at least BPi is one of the oldest ones

[icy marsh]

true

[icy marsh]

So,should I just make my music player from scratch? i mean it doesent look too hard

[silver shale]

I built a tablet using an M64. It's a hack but it still works.

[silver shale]

PCB design and everything?

[icy marsh]

no i mean with a pi and parts. like not a kit

[silver shale]

Yeah

[icy marsh]

This is my amazon cart currently: https://www.amazon.ca/cart?ref_=ewc_gtc

[silver shale]

that's just a link to cart, I am not able to see the list

[icy marsh]

Sorry one second please\

[icy marsh]

https://www.amazon.ca/gp/product/B082GFTZQD/ref=ox_sc_act_title_2?smid=A3B0XDFTVR980O&psc=1
https://www.amazon.ca/gp/product/B08D678XPR/ref=ox_sc_act_title_1?smid=A3801D113D15XA&psc=1
This is worthless canadian monopoly money. Remmember that

[late fulcrum]

Gimbal motors. Not expensive for small ones.

[late fulcrum]

A Pi is pretty power hungry for a portable device.

[icy marsh]

Yeah... But I already have one so I really want to use it

[silver shale]

It can be downclocked

[icy marsh]

I probably will do that. I just need it to play music thats all really

[spice moss]

nasa starlines crew flight test launch attempt 2

[fast ferry]

re: battery-powered Pi, I built a portable video looper a couple years ago using a Pi Zero W (no wifi connection), a small Adafruit resistive touchscreen HAT, and that PiSugar2 LiPo power supply, and it runs for around 4 hours. I don't think I optimized it at all.

one implementation note: the PiSugar2 has no hard battery disconnext, only a soft off, even though it has a slider power switch. I found it was out of juice after a year in storage. the battery's soldered in, so I had to splice a switch into one of the battery wires to disconnect it for long-term storage (which worked after another year)

[fluid bobcat]

What is the best movement sensor / IMU to capture movement very precisily? Like I want to make that every single small movements gets captured and displayed on the screen. What is the best sensor on the market?

[tardy badger]

You probably want some kind of sensor that detects a few degrees of movement. Something that incorporates an accelerometer, a gyroscope, possibly RTK if you want cm precision. RTK is pretty cool

This would probably be a good sensor to start with: https://www.adafruit.com/product/4646

9 degrees of freedom

[glad ruin]

There is no single "best" sensor on the market, and what you are describing can't really be done with just one sensor. BNO055 is a decent starting point, but beyond that things can get very complicated very quickly. It would help to know more about your use case.

[tardy badger]

There is a module that does 12DoF with combining 9DoF IMU, GPS, and RTK. It’s like $200 though 😬

They can get cm precision with all that data using a highly integrated Kalman Filter

https://inertialsense.com/product/pre-calibrated-imu-5-sensor-module-only/

Sorry, it’s 10DoF

Here’s the one with RTK

https://inertialsense.com/product/uig-ins-sensor-rtk/

As you can see, it costs money

[glad ruin]

Yes, but if that's what you need then that's what you need...

[rapid geode]

ok i was not expecting that money. was expecitng "whah is $39"

[tardy badger]

Lol

[glad ruin]

Honestly, an integrated solution like that is easily worth $200 if it "just works".

[tardy badger]

It’s pretty accurate, especially if it’s tied with GPS and/or RTK

Which if you do it separately, you can probably create your own Kalman Filter to do what you need vs paying $1800

But $1800 has the built in software so 🤷‍♂️

At that point it comes down to how much your time is worth

[glad ruin]

Yep

[stoic mesa]

you need to provide more.
Are you talking about detecting vibrations? detecting orientation in space? absolute position?
detecting vibrations is easy;
determining orientation can be done with 9DOF IMU like BNO055 (I can provide several other, similar, solutions); detecting position can be done using GPS (preferably with RTK), or using odometry, or optical flow sensor

[fluid bobcat]

I want to make a smart pen. I want to capture every single small movement so that I can recognize the written words

[fluid bobcat]

It's more the relative motions but these have to be very accurate

[tardy badger]

Smart pens are hard, mostly from the perspective of actual hardware design

You run into a few areas of consideration here:

1. High Density PCB design which is a pretty refined skill, possible for hobbyists, but prepare for eye watering costs.
2. Smöl components have to be used. You’re talking about probably a WLCSP packaged Bluetooth chip like the nRF52811.
3. Sensor fusion algorithms to accurately determine precise movements with inputs from sensors.

You could take the Apple Pencil approach which uses some sensor fusion along with capacitive touch generation to both accurately place pixels and determine movement to better articulate movements of pen/brush strokes onto the digital canvas

But either way, small PCBs, incredibly small parts and chip smarts. It sounds like a fun project anyway

[fluid bobcat]

Thanks. It's the idea to start a business with this. Once I have a working prototype will I have 50k budget

nuwapen is the way I want to go with some extra features and a better price

[tardy badger]

I’d plan on probably spending $1-2k on prototype hardware

WLCSP packages tend to require PCBs that can cost a few hundred $$

You might get away with the 32-QFN package though if the nRF52811

Hmm, that does make me wonder though.

I might throw something together in KiCAD this weekend because I’m genuinely curious how small I could get with the smallest qfn packaged nrf part

[fluid bobcat]

Ah thanks man!

But micro controller and IMU are small

So would be okay

Battery of 500 mah

[tardy badger]

PCBs for super fine pitched parts require specialized tools like laser drills

500mAh? That’s more than the Apple Pencil has last I looked

1st gen Apple pencil was 329mAh

[fluid bobcat]

CM is already too bad. But is it possible with relative positioning?

[tardy badger]

I thought maybe you were doing a tracking tag or something. You can get mm precision with a combination of relating IMU data and capacitive touch input from the device your using

That’s what Apple does (there’s a ton of nuance here that isn’t obvious)

[fluid bobcat]

Yes but I want this pen to work on paper

[tardy badger]

Ah

[fluid bobcat]

And I think this is possible with a very good IMU

[tardy badger]

That might still be possible. But we’re talking about likely needing 2-3 IMU to collate into positioning data for high precision

[somber spindle]

Forgive me if this is an off-the-wall idea, but what about using a camera and just capturing the written text? There are cameras that are quite small, though obviously the UX is very different

[tardy badger]

🤷‍♂️

[fluid bobcat]

Yes this is possible but is the easy way

[somber spindle]

Why would anyone suggest the easy way when a hard way is possible?

[fluid bobcat]

https://www.adafruit.com/product/2472 this looks pretty accurate

[tardy badger]

Anyway, probably easiest way to test out would be to use a normal writing instrument, attach a jig to it to hold a controller, a couple IMU boards, and a battery. See what you can do with that.

[fluid bobcat]

Fair but it looks like overkill and more expensive I think

[tardy badger]

That’s maybe $100 to validated your idea

Well, maybe $150

[fluid bobcat]

That's cool

[tardy badger]

Shipping is expensive these days 😀

[fluid bobcat]

Feather m0 adalogger with battery cool as micro controller?

[tardy badger]

Probably want an rp2040 or maybe even feather M4. You could also do ESP32/ESP32-S3

Sam D21 M0 doesn’t have a ton of horse power these days

[fluid bobcat]

Is this needed for this project?

[tardy badger]

Well, I’d say probably so.

Better to have more power and not need it than not enough

[fluid bobcat]

Fair

[stoic mesa]

feather is pretty large form factor for a smart pen

[fluid bobcat]

Ah

[tardy badger]

It’s just proof of concept

[fluid bobcat]

For now yes

Btw https://nuwapen.com/products/nuwa-pen

[tardy badger]

If you can make it work with that, you should definitely be able to make it work on something smaller

Nuwa pen uses cameras, interesting

[fluid bobcat]

Yes

And also a movement sensor

@tardy badger can you check DM pls

[tardy badger]

I usually don’t do DMs on here

[fluid bobcat]

I'm new to electronics and sensors. I have some small experience with rp. Could you please give me all the links to the products I have to buy

[tardy badger]

Sure

[fluid bobcat]

And then a disclaimer with that some people say that Bosh has some good IMU's too

And you think you need 2 IMU's?

[tardy badger]

feather rp2040: https://www.adafruit.com/product/4884
Battery (when it’s in stock): https://www.adafruit.com/product/2750
2x IMU: https://www.adafruit.com/product/2472

[fluid bobcat]

This will result in higher p?recision?

[tardy badger]

I think two IMU because you’ll want to at least track the movement of the top and bottom of the utensil

That can be useful for detecting letters, objects, etc being drawn. Keep in mind that getting everything hooked up is easy, actually doing something useful with the data is going to be where the challenge lies

[fluid bobcat]

Hmmm but if you look at this: https://www.adafruit.com/product/2472

This has some good rotation too

And that's the result I want

(but don't know about how accurate this is)

[tardy badger]

You could use both 🤷‍♂️

[fluid bobcat]

Alright thanks

[tardy badger]

Either way, getting the data isn’t the biggest hurdle. There’s a reason software engineers make more than electrical engineers. Anyone can write software, but it takes a particular engineer to write useful software.

[fluid bobcat]

And the adalogger. This support to charge the battery and read/write to micro SD?

[tardy badger]

I wouldn’t worry about the adalogger. Logging isn’t really important here.

[fluid bobcat]

Yes, but if the hardware is not capable of doing to movement with high accuration it won't work anyway

[fluid bobcat]

No? Because this data needs to be stored

[tardy badger]

It’s been done before, so it’s possible with COTS sensors.

You can store data on the RP2040 flash, it has like 8MB

[fluid bobcat]

And battery isn't needed in proof of concept yet? I can charge the rp via my pc

[tardy badger]

You can power with USB, yes

[fluid bobcat]

What are COTS?

What I also need for the pen is like a flash memory + micro controller+ rechargeable battery. I wonder why this doesnt exist

[tranquil swallow]

I watched a video by Andreas Spiess on RTK-GPS and based on his information you can get very precise results with about ~$1000CDN of parts from AliExpress

[tardy badger]

COTs is commercial off the shelf

[fluid bobcat]

And some cables? That white board I have

[tardy badger]

Stemma QT for connecting the sensors

https://www.adafruit.com/product/4399

[fluid bobcat]

That sucks because nobody would pay that much for a smart pen

[tranquil swallow]

Idk the new iPad pencil 2 is probably pretty close in cost

[fluid bobcat]

Hahahha true

And people say to me that nobody will ever pay 150 for my smart pen

[tardy badger]

People will pay for anything if you can appeal to their emotions

[patent hemlock]

or if your name is "Apple"

[tardy badger]

Apple appeals to people’s emotions and how they feel about technology. That’s what their customer base wants. Emotional validation through technology purchases

[patent hemlock]

and to be cool

[tardy badger]

Other companies are like “here’s a computer, it can run word pretty well. At least until the next update”

[fluid bobcat]

Thanks for the help

What I also need for the pen is like a flash memory + micro controller+ rechargeable battery. I wonder why this doesnt exist

[tardy badger]

I mean, lots of smart pens exist that are pretty basic

The issue is if it can be easily replicated by a Chinese company, it will be and they can easily out compete. Most smart pens are pretty boutique in terms of the customer base they target

[fluid bobcat]

No, they need some special paper

[fluid bobcat]

Yep, cool design + flashlight + USB functionality + open source (for thé tech enthousiasts)

[tardy badger]

So it’s best to keep in mind that you can probably be successful making and selling one with the right marketing strategy, but it’s going to be a fairly niche product so don’t expect to make you a millionaire overnight. Do it for fun, do it because you’re passionate and interested in it, and you’ll find other things you can make and sell as well.

[tranquil swallow]

Your mac mini desktop setup lives rent free in my head @tardy badger I keep thinking about how much space my tower and monitor take up

[tardy badger]

Meanwhile right next to it

[tranquil swallow]

Lol

Is the a scale printed iso pallet

[tardy badger]

Yes lol

[fluid bobcat]

Thanks mate. Do you have any business plans/ product plans?

[tardy badger]

I mostly sell through Tindie

Small hobby business

[fluid bobcat]

Do you know this

flash memory + micro controller+ rechargeable battery. I wonder why this doesnt exist

[fluid bobcat]

That's cool

[tardy badger]

Not sure 🤷‍♂️

[fluid bobcat]

What was your best idea/product?

[tardy badger]

This has made me the most money

This is the board I’ve sold the most of

Well, okay technically I’ve sold more of these ones:

[fluid bobcat]

What do they do

[tardy badger]

They’re just development boards for various different controllers

Not unlike a feather RP2040

[fluid bobcat]

I want to make my own product and bring it on the market. I just want something I can be proud on. I'm an egaged person

[fluid bobcat]

Ohhh

[tardy badger]

Start with the most basic version of your idea and iterate

Take notes, improve, fail, get up again, and you’ll get there. You might end up making something completely different than you originally planned.

[fluid bobcat]

So no projects like pushing a button and then the light turn on for example

[tardy badger]

If that’s where you need to start, that works too

We all start from zero, zero looks differently for everyone

[fluid bobcat]

I hope you start entrepreneurship

[fluid bobcat]

I mean for your projects

[tardy badger]

Oh, I mean you can. I have been focusing on FPGA products lately.

[brave copper]

got the spirit ghost trap...how do I make that lever switch not play a sound (I'm making my own sound board with adafruit's sound FX later on in the future - I need it like this

plays power up once and checks that the doors are closed but it doesn't play the full trap sound can the arudino prevent this from playing a sound if I used Adafruit's Sound FX board in Uart mode?

[night crescent]

WE ARE LIVE! SHOW AND TELL! https://youtu.be/Eo3y5NlQS6o

[night crescent]

WE ARE LIVE! ASK AN ENGINEER! https://youtu.be/2jDJdR5wA-E

10% discount code, code is: uhid http://www.adafruit.com ends at midnight NYC time

[late fulcrum]

I doubt the Arduino could prevent it directly, but you could probably modify the circuitry to do so

[brave copper]

It can make something high to low if I use the a code once started up

[late fulcrum]

I don't know what the circuitry looks like, but (again) you could probably modify the circuitry to pay attention to that if necessary

[rapid geode]

success! (ish, i did botch the other 3 in this set with a program mistake)

[fluid bobcat]

to start testing with a rp, sensor. I only need 1 qwicc cable and a breadboard?

[scarlet herald]

play Tic-Tac-Toe on RP2040 via thonny

[twilit onyx]

If your board has header pins, this type of cable will get you connected to a sensor, no breadboard required: https://www.adafruit.com/product/4397

[glad ruin]

https://media.discordapp.net/attachments/1154594463851741214/1247639267803664404/Screenshot_20240604-200239_Instagram2.jpg

[tardy badger]

They’re using an RP2040 not a Pi 🙂

[urban arrow]

Hi all - When I found out about Pycharm's Mark Modified setting, I didn't have that as an option... Been too lazy to upgrade from my install last year... Update to latest, and it's there now...

[twilit onyx]

Oh, I didn't realize 😅 At least the cable may still be useful for a minimalist setup to begin playing with a sensor

[tardy badger]

Oh absolutely 🤓

[glad ruin]

https://cdn.discordapp.com/attachments/984281526432849930/1248295091383173120/jtkn3158ny4d1.webp

[tardy badger]

At least it made it back to earth this time 😂

[ebon dew]

There's an episode of Lower Decks where an AI's evil plan all hinged on being able to disable its red LED to fool humans into thinking it wasn't doing evil.

[fast ferry]

norminal? 😄

[ebon dew]

Looks like the whole game stop thing might be happening again. It's all over the news everywhere again.

[patent hemlock]

the launch video i swear looks like CGI

[rapid geode]

it alread happened again last month

[burnt tendon]

Wake up, sheeple.

Gotta say, since the very start of my career was working with stock market data, gamestop and other reddit financial market weirdness is 🍿.

[rapid geode]

i dont get meme stock. theres another orange tinted stock that should by math be in the $1-$10 range but it at 50 cause of lols

actually, i suppose i do get the gamestop one specifically

its not about money

[glad ruin]

Gotta protect those hedge fund "investors". Who knows what would happen if they were forced to face the consequences of their own stupidity?

Personally, I usually avoid dealing with the stock market. The only exception I make is if I can get discounted stocks from work.

[tardy badger]

This is about all the stonks I do outside of my 401k

Just small amounts of money I’m okay losing

A majority of that gain is the 0.02215… shares I own of nvidia 💀

Which after the upcoming stock split will be 0.2215.. shares 😂

[rapid geode]

https://www.youtube.com/watch?v=8m1rR9bpfKw

edit

of the whole process

whee

[late fulcrum]

When the bulb in the clock in my car burned out, it turned out to be a special expensive hard to obtain one, so I replaced with an LED. A red one.

[burnt tendon]

Seems like a bright idea.

[round minnow]

As long as the car does not turn evil.

[rapid geode]

twist: it was evil the whole time

[ebon dew]

Anyone else receive a Discord Developer DM today? Seems like they're rolling out some new storefront tie in.

Since this is the first time I've ever received such a message I'm pretty sure I just got opted in for these types of communications. Probably because I do have a discord developer API token.

[tardy badger]

That makes you a discord developer 😉

[tardy badger]

JLCPCB watching me upload a board, leave it in my cart, come back a day later with a new version, ad nauseam for two weeks and not checking out:

https://tenor.com/view/disappointed-disappointed-fan-seriously-what-are-you-doing-judging-you-gif-17485289

[rapid geode]

haha

[ebon dew]

I don't feel like one. :/

[blissful roost]

You probably don't want to...

[rapid geode]

is it just me or has reddit really died the last month or 2. subs where i normally saw 2-3k online users now have 50-200.

was there another revolt?

[burnt tendon]

I mean, on a good day, most of reddit is pretty revolting.

[rapid geode]

....

[burnt tendon]

But I'm assuming it was the Google content selling deal?

[rapid geode]

anyone ever tell you youre not punny?

😛

[rapid geode]

oh.

[brave copper]

the soundFX mini is tiny in size O_o

[raven tree]

what is the name of this tool?

[slim shard]

Google says my guess at "hand drill" is a decent one.

[fast ferry]

looks like a pin vise.

[rapid geode]

O-o

[raven tree]

thank you!

[sharp nexus]

HOLA MONA HEY!

I found FLUX AI and it is better than KiCAD, EasyEDA and many others...AI in HARDWARE!!!! Massive

I have this schematic and I am finishing it with NORDIC chip, DIGIPOTS and INA219 for production if anybody wants to help me for this ADVICE

[stoic mesa]

please do not cross-post in multiple channels

[vestal pier]

Especially marketing spam

[rapid geode]

only cross post pizzas

[rapid geode]

ordered 2 pizzas

now we wait

😛

[dusty citrus]

Been a while since I used grasshopper. I need to relearn it, annoying

I wish at least they did auto create nodes while interacting with rhino as in maya/houdini
Or that the same commands had the same namings
But nah

[rapid geode]

patents. so many features are under patents it is not funny.

[tranquil swallow]

I do find patents very unfunny, especially software patents

[dusty citrus]

what? patents work on software? is there a patent for basically tracking up actions?

[rapid geode]

theres a patent for everything. foundry sued blackmagic for using node graphs cause they owned that patent

[dusty citrus]

huh

[rapid geode]

node graphs are now in everything from unreal to maya, but they werent some new invention. 3dsmax had them since the 90s. but noone was allowed to use them

[patent hemlock]

had mine last night

[rapid geode]

mine just arrived

nom nom

smack book

im sure each component will cost more than a new one

cause reasons

[tranquil swallow]

I imagine that's the case, now it's an expensive brick

[void otter]

does anyone happen to know what the on and sig jumpers do here

:))

[hard estuary]

The learn guide says if you want to disable the LEDs cut the jumper: https://learn.adafruit.com/adafruit-stemma-reflective-photo-interrupt-sensor/pinouts

[void otter]

ah

I need to now clean the output to a on/off state instead of variable, thinking a bjt with a biasing resistance

or maybe a diode into a bjt, most simple!

[patent hemlock]

about the only thing i can grow these days is tired 🥁

[rapid geode]

ha

[slender sphinx]

I am new to this and was wondering if someone could point my in the right Direct of what to buy. I know basic scripting and electronic. I am trying to make a button box with 56 inputs. These consist of (8) 2 way Momentary Rockers, (8) Rockers, (8) Momentary rocker/toggle switches, (3) three position rotary switches, (3) 3-way Rotary encoders, (2) push/pull Switches, and 3 push buttons. Any help would be greatly welcomed. I 1st need to figure out which board to buy, the any breakouts or accessory boards to get started. Thank you in advance.

[void otter]

perfect

[late fulcrum]

You might look at chips designed to read keyboards.

[slender sphinx]

is that what the Adafruit Grand Central M4 Express featuring the SAMD51 is or should I use something different

[late fulcrum]

If you want to just do it directly with a lot of I/O pins, the Grand Central might be a good choice

[slender sphinx]

ok, or did you mean something more like Adafruit CH9328 UART to HID Keyboard Breakout

Like I said I am really new to this so I don't know the different types of boards

I do know the basics behind a button matrix layout

[late fulcrum]

This board, for example, while advertised as an LED driver, can also read up to 39 switches. Two of 'em would be enough. https://www.adafruit.com/product/1427

[slender sphinx]

ok how can I link 2 of them to 1 USB C output connector from my box to the PC

I know I might need joyto Key to make them work in game

[late fulcrum]

If you want to hook it up to something like that, you might use a keyboard controller like this https://www.adafruit.com/product/5302

[slender sphinx]

OK and then I can start making a 8x8 button matrix to wire in the switches

or even a 8x7

Am I following you correctly?

I just ordered the Adafruit KB2040 - RP2040 Kee Boar Driver and other stuff to start testing this idea. thank you for your help

[stoic mesa]

at our local maker faire, saw this.

I had seen it online, but actually holding it in my hands is different

Last time I dialed a number using a disk like this was 40 years ago...

maybe 35

so having a disk cell phone is really impressive

[rapid geode]

cel phone? ha

neat

[tardy badger]

Finally getting around to my parts management web app

Very early start

[rapid geode]

what is this inventory you speak of? ive bought things from adafruit 3 tiems cause i forgot i had them :

😛

[blissful roost]

parts... management??

wassat?

[silver shale]

Repo?

I've been "planning" to make an IMS software since 2021

[tardy badger]

It’ll live here. I’m gutting the python bits. But in reality, I’m probably going to deploy this on AWS, launch a limited alpha/beta phase, and go from there.

It’ll be open source of course so people can self host if they want

[silver shale]

that's what I meant

I was going to use Python originally but I switched to Rust for everything web

[rapid geode]

i nead peach management - or a hawk with a taste for squirrels...

[blissful roost]

Meh.. do it all in PHP. 😛

[rapid geode]

been a bit of a puzzle to figure out how to mill the parts for that big machine on my little machine, but i think ive got it. woo. hehe.

[tardy badger]

dark mode

custom CSV upload works. so hopefully if something happens, you have a csv backup of your parts inventory

and then you upload it 😄

[void otter]

php is seldom insecure when on a certian hosting software (apache)

[rapid geode]

when i was an isp php was always being hacked. windows iis never hacked. its a lot more to do with the person's skills setting things up and managing than the software i think

[void otter]

I would have to agree

right now my site is currently offline because of... things

it is getting a new domain and maybe a UI overhaul eventually

[spice moss]

well something to demo for research https://www.youtube.com/watch?v=eYVwF4OG-H4

skerr nice way to show parts

[scarlet otter]

Hello ! Am new into the Adafruit comunity, and i need help about a soldering station i bought onto adafruit website... Where can i get help ?

[stoic mesa]

#help-with-projects is probably the best channel.

[scarlet otter]

okm thanks

[hallow locust]

hi! I'm looking for a AdaFruit MacroPad, and it looks like almost every site is out of stock

did adafruit stop making them?

[whole jacinth]

usually if they’re discontinued, the Adafruit site will say so. could just be part shortage

[late fulcrum]

DigiKey gives an estimated ship date of 8/18

[fair summit]

There is nothing all that special about the KB2040 compared with other RP2040 boards except it is the same shape as the Arduino Pro Micro, which is used in a lot of keyboard projects.

[late fulcrum]

Or the bare bones version, with a ship date of 7/21

[hallow locust]

ah ok thank you for your help guys!

[night crescent]

Desk of Ladyada - DS2484 Testing, RP2040 Adalogger bringup & IrDA https://youtu.be/Ivm_0VRW-Bg

[glad ruin]

IrDA

https://tenor.com/view/theres-a-name-ive-not-heard-in-many-years-gif-25204373

[sinful stratus]

can i use the USB-C port on the macropad rp2040 as a USB host?

[thick wind]

Short answer: no.

Long answer: Not unless you know your way around boards enough to physically replace the cc resistors to ground with the right resistors or usb c controller.

That being said, I don’t even know if the rp2040 controller works as a host with the way it’s connected to the data lines, so there are a lot of unanswered questions there.

[fair summit]

@sinful stratus There is PIO-based support for USB Host, e.g. https://www.adafruit.com/product/5723. But there is not support on the regular USB lines.

[tardy badger]

I tell ya, I make any progress on my entrepreneurial endeavors over the weekend and my brain come Monday at work is “heck with this job, I’ll do what I want.” But then I remember I have bills to pay

[rapid geode]

hehehe

[tardy badger]

iPad finally getting the calculator app lol

But it’s getting sooped up to use Apple Pencil to enable math notes

Looks pretty sweet actually

[rapid geode]

ipad didnt have a calculator before?

or is this somethign more special

i could see them not wanting a calculator cause you might try to add up apples claims about their product....

runs

[tardy badger]

surprisingly, no lol

[rapid geode]

weird

[tardy badger]

as for apples claims, depends on who you ask if they came through on them or not

I'm generally pretty happy with apple products

not the best of the best, a little over priced... but considering my late 2017 macbook pro still runs more than 6 years after I bought it... pretty decent I think.

[rapid geode]

hehe. they arent the only ones that exxagerate, but they often make a big deal of it which makes it funnier

[tardy badger]

oh sure, they play to people's emotions

I don't use a majority of featurs apple boasts

mostly because a lot aren't really relevant to my general use.

[rapid geode]

no calculator is bizzare though. like a computer is a glorified calculator. if it had no other features youd EXPECT a calculator

[tardy badger]

I think generally, people who used iPads weren't doing math and likely already had their phone up to use a calculator

[rapid geode]

sure, but its just weird

[tardy badger]

though the new calculator and math notes looks pretty nice. Might convince me to go back for my masters or ph.d in engineering..

[rapid geode]

like some sort of calculated decision

....

ill go now

😛

[tardy badger]

lol

Apple Intelligence actually looks like a useful AI. Guess we’ll see how it actually works in the wild. I will maintain my skepticism of general AI adoption though.

Oh finally the option to delete objects from images. Catching up with android

[rapid geode]

reminds my of my current search for a cnc control for that new machine. i asked on reddit (first mistake) for people with experience in various industrial controls, and all i get are suggestions of overpriced hobby gear with features that were out of date in 1985....

oof

the control i really want is 3 phase power only so i cant use that one (siemens). so im trying to see if any of the cheaper ones are any good.

[late fulcrum]

You could use it with a phase box or a motor-generator, but yeah, single phase is good. I was looking for some industrial equipment and had a choice of three phase or water cooled. I figured water cooling is easier to arrange in my basement than three phase power.

[rapid geode]

rotary 3 phase converters are not really viable for this. they need to be load matched. digital phase converters are too expensive and too overkill (10x the power i need for the smallest one). so its much easier to just start with single phase drives.

siemens doesnt offer any. so we need to go with an alternative controller that works with single phase

actuallt, thats not quite true. siemens does offer some, but only on their higher end controllers which cost $20000

never made sense to me, but whatever

i want adesk to integrate a machine control into fusion

but they take 10 years to implement features so...

hehe

i was at a meeting with the devs and was shown something "big" in like 2016... and its STILL not released.

shrug

[late fulcrum]

That's yet another downside of subscription model software. Companies aren't motivated to spend money making upgrades since people are paying for the software anyway. When you had to buy a new release to get new features, companies were motivated to roll out new features.

[rapid geode]

well, its a double edges sword. a lot of companies would rool out features that just didnt work

[late fulcrum]

Yep, and word would get out, and people wouldn't buy upgrades.

Then again, MICROS~1 made a fortune rolling out features that just don't work.

[rapid geode]

3ds max is an interesting evolution. in the early days they would add so many things, half finished, broken. max would crash every 5 minutes. today, they "seem" to barely add anything every year, but almost everything just works. almost never crashes.

[late fulcrum]

Sony's journey is interesting. Originally they wanted to break into a saturated market, and managed to do so with a very welcoming developer program, providing many games for the PS1. By the time the PS3 came out, they had abandoned backward compatibility in favor of raw compute horsepower. But developers didn't like programming for such an advanced architecture, so they took a giant step backwards for the PS4.

But Nintendo has learned to leverage the indie developer market, with a stream of weird and wonderful games for the Switch.

[rapid geode]

sony's history is a just a list of the worst business choices.

ha

its kinda amazing. they never learn

[late fulcrum]

It's not really that as much as they're optimists chained to bean counters. So they roll out the best VCR, but people don't want the best. They roll out a superior game system, then lose the plot.

I don't want to think superior products are intrinsically the worst business choices, but it does seem that way sometimes.

[rapid geode]

it has a lot to do with them atempting to control it and keep it all to themselves, but most of these things need others to adopt it to be really successful

[tardy badger]

I tend to think most people just want good enough. It’s more affordable

[late fulcrum]

Yeah, the proprietary memory stick was an awful idea. But their eReader was open and interoperable, in a field where that was rare.

And again MICROS~1 has built a business on attempting to keep control and keep it all to themselves.

[rapid geode]

memory stick, iwire, beta, minidisc. rinse and repeat. lock it all down

[late fulcrum]

It's not really that "good enough" is more affordable (a very common myth). It's just that many buyers are not really making rational decisions.

Beta was open, lots of companies made Beta gear.

[rapid geode]

really? ive never seen anythign beta/betamax other than sony brand

hm

i had a digital betacam for a while

(eng news type camera)

sony cinema cameras are a big fail in recent years too. dissapointing. that was one area they used to be great

[late fulcrum]

Cinema cameras are a mess lately

[dusty citrus]

Somehow they still make phones. Once they did bring some new things, now they all seem to be a copy of one. Without even considering the price...

[burnt tendon]

There's also the thing where people from certain cultures would Always Buy Sony No Matter What for a period of time which ... well, it worked until it didn't.

Technology Connections has hours of videos where he talks about Beta.

[glad ruin]

... and then sell subscription support contracts to the companies that depend on said broken features.

[rapid geode]

bleh. happy thoughts. my peach tree is growing 50 new branches. its going to be 12 ft tall by end of year

hehe

[burnt tendon]

..so things are just peachy?

[rapid geode]

mmm

[sinful stratus]

got it, thanks Hem and danh!!

does this DAC have a differential output? or is the negative pin on the output just gnd https://www.adafruit.com/product/5811

i need a compatible amp so i can use this with speakers/headphones

[late fulcrum]

It's not a differential output DAC, just an output voltage pin, and a zero volt reference (AKA "ground").

Most differential amps can work with an unbalanced signal (you'll see some of the breakout boards from AdaFruit wired this way).

[worthy magnet]

Can anyone review a YM2413+SN76489 mixer schematic?

[late fulcrum]

Unsure of the purpose of D1. I wouldn't use an electrolytic for C3. There's no bias on the output voltage. Looks like it would cut a lot of treble.

[worthy magnet]

wdym about the "cut" a lot of trouble?

C3 I understood, changing to NP.

D1, probably for prot.

I mean it would be fun if I use LED in D1 lmao (ofc with cur. limit)

[late fulcrum]

It's a low pass filter, so you'll get more low frequencies through it than high frequencies

[worthy magnet]

so it's bad?

sorry English hard ;w;

[late fulcrum]

That depends on the sonic character you want

[worthy magnet]

tbh I aim for SMS quality

(without potato, that is, also using dedicated SN would give a)

[late fulcrum]

Where I come from, SMS is text messaging, there's no audio involved.

[worthy magnet]

Sega Master System

aka MarkIII

so yea

so what do I do? add a cap between U5A.1 to U5B.6?

which can work

also I am powering with single 5V, that's why rail splitter

(and bias 2.5V)

I should just try

[late fulcrum]

I am not sure why C1, C2 and C6 are there. And is C6 really 390µF?

[worthy magnet]

C1/C2 is required

because of how YM2413 outputs; requires integral circuit

probably I can just do integral after the mixing

hmm; I could use R14=10K, C6=820p

which means 19.4kHz LPF

which is nicer

[late fulcrum]

820p makes a lot more sense than 390µ

[worthy magnet]

yeah I gonna use 10k/820p

changed filter val

otherwise looks good to me ;w;

idk, I should test on bb -w-

[late fulcrum]

Good idea

[worthy magnet]

but I need more parts and data outputter

[late fulcrum]

You should be able to do initial testing with any audio source

[worthy magnet]

o yea

[late fulcrum]

My breadboards are ugly but I learn a lot

[worthy magnet]

but I need more parts lol

cap and stuff

sorry automod lmao

[late fulcrum]

It's good to have a variety of parts on hand

[worthy magnet]

it sucks when I don't have money...

I wanna have oscilloscope. because y know

[late fulcrum]

I know that feeling. I tend to grab electronics that people discard and strip it for parts.

Weirdly, there are cheap oscilloscopes out there. But they generally need some repairs.

[tardy badger]

A handheld scope can get you pretty far too, and they’re fairly affordable off aliexpress

[tardy badger]

I love the look of old tube scopes

[whole jacinth]

yeah, when i was younger and didn’t have much money, i got fairly good at salvaging parts from discarded electronics

[tardy badger]

Nothing like X-ray beams and mercury/lead lined tubes to make a beautiful waveform

And strong magnets too of course 🙂

[late fulcrum]

The 1600V won't make any X rays, and there's no mercury in any of those tubes. It is leaded glass, however.

[worthy magnet]

I do have YM2413 and SN76489

just missing caps and more stuff

[late fulcrum]

It's electrostatic deflection, so the only real magnetics are the power transformer

[worthy magnet]

I could just order rn but

[tardy badger]

Ah different tube technology

[late fulcrum]

You're more likely to find caps in discarded electronics than a YM2413

[tardy badger]

I’m not super familiar with identifying tube types 😅

[late fulcrum]

There are some mercury vapor rectifiers, but they're normally present in larger gear.

Like this monster powering a railroad

[tardy badger]

Beautiful

[late fulcrum]

Three phase rectifier in a single component

[whole jacinth]

i think i’ve heard of some people collecting them (HV enthusiasts?), though that seems really hazardous to keep around in case of breakage

[burnt tendon]

Yeah, they seem fairly mercurial.

[worthy magnet]

I updated

[late fulcrum]

I could be considered an HV enthusiast, and I also have a bunch of things that could be hazardous if broken. For example, this uranium glass neon tube: the uranium causes the glass to fluoresce a lovely yellow green color (which is, in turn excited by shortwave UV from a mercury vapor discharge inside). So it's high voltage, mercury, ionizating radiation, and radioactivity all in one!

[patent hemlock]

sunny beaches...

[stoic mesa]

all that is missing is a fire hazard. Can you add some flammable materials to the mix? like elemental lithium?

[late fulcrum]

Thanks FedEx for smashing this expensive and dangerous helium-cadmium laser...

Thanks FedEx for smashing this expensive and dangerous argon ion laser...

[rapid geode]

O_o

fedex? usually i expect this from ups

[blissful roost]

FedEx and UPS should totally merge..

[glad ruin]

And change their name to FedUP.

[blissful roost]

The staff would be called Fed Ups.

[glad ruin]

No, the staff would just resign. Because they'd be fed up with the merger.

[blissful roost]

😛

[glad ruin]

[tardy badger]

Today in “Cpp is only as smart as you let it and computers are just sparky rocks”: I had a vector of char arrays I was putting into a string. I wanted to validate my idea to move them over with some dummy code. Turns out accessing each char array individually just means you go “every element + every element-1 + every element-2 + … last element” in your string

Not what I initially expected

But after thinking about it, it made sense

[tardy badger]

The funny part is, if you don’t completely fill the char arrays in the vector and add each char to your string using the vector.at() method, it works fine lol.

And that’s because the memory is no longer continuous between each array

[honest jolt]

I can barely write C++ code with IDE syntax highlighting, error underlines, and Google lol, how did people manage to do this before is beyond me

[late fulcrum]

Weird, UPS has always been good to me, but FedEx and DHL have a bad habit of lying about where things are, leaving packages in the snow, and breaking stuff.

[rapid geode]

i hear this from americans. in canads fedex is very good and ups are literal criminals. sued and lost many times for illegal practices

[late fulcrum]

I learned on machine code, everything else seems easy by comparison

Weird, I thought Canada was in America.

[rapid geode]

....

[glad ruin]

Interesting. My experience is better with UPS in the US as well.

[rapid geode]

yeah, its a strage thing. ive had ups put me on call block when i tried to make a claim for an item they charged me $150 for next day saturday shipping then told me they didnt offer saturday delivery

also the suprise $100 brokerage fees on $50 items

they like that one a lot. then try to old the item hostage when you tell them thats illegal

dhl is usually fine. ive had some damaged items with them but i blame the sellers packing

oh. UPS also put a forklift blade into my lathe

[glad ruin]

I know that a bunch of US companies (especially smaller ones) flat out don't ship to Canada because it's such a pain.

[rapid geode]

its expensive for sure. usually its easy going though. just dont try to evade taxes.

[glad ruin]

I've looked it up before, and shipping even a small package to Canada is at least as expensive as shipping it to the EU, if not more.

[stoic mesa]

no, not really. I ship to Canada

[rapid geode]

yeah. i can order a machine part from korea, next day fedex for like $30 shipping (sometimes free). but if i want to them mail that part to the next city over in canada it is $200

haha

in my cart right now from my usually guy in korea...

these are heavy parts 2-3 ft long

[glad ruin]

My reaction is just... how?!

[rapid geode]

i dont really know. does south korea have some sort of subsidy?

those are for this machine

[glad ruin]

Canada shipping seems to be priced as if every package is hand-delivered by a bush pilot.

[rapid geode]

ha. maybe it is

yeah i dont get it

it does not have a lot of logic

well, ok, maybe thats not true. our post office is profitable and pays well. vs usps which i always hear is underfunded and in trouble. maybe they need to jack up prices?

[sinful stratus]

do you think I should care about having differential output?

[glad ruin]

Actually, yeah. That's got to be the only explanation. In Canada all packages are delivered by bush pilots. It doesn't matter if you're in the middle of Toronto, they'll have a bush pilot land in the parking lot of your apartment complex.

[rapid geode]

that would be awesome.

hahaha

or drones

[sinful stratus]

i'll explain my problem just to make sure im not doing it all wrong -

my device (i'm using a feather board) needs to take in some data over serial, decode it to get the raw sound information, then send that out to a speaker/3.5mm jack

right now i'm planning on using a stemma qt i2c DAC and then putting that output into an amp

but theres also that i2s thing

and ive seen amps that work directly with i2s, so maybe i should just be using that in the first place

[late fulcrum]

I don't think a differential output matters much in your use case.

[sinful stratus]

got it

[glad ruin]

Drones are Canada's main export.

[rapid geode]

hehe

[glad ruin]

I'm convinced that the Canadian Air Force has has genetically modified Canadian geese to terrorize the rest of the world. It's just a matter of time before society collapses, and the Canadian Army comes in to pick up the rubble.

Welcome to the SCSA, Southern Canadian States of America.

[rapid geode]

oh, we are defintiely just waiting to pick up the scraps.

hehe

we will take the coasts.

mexico can have the middle

[glad ruin]

Honestly yeah they can have Texas.

And Florida.

[rapid geode]

ha. could you imagine.

[glad ruin]

And Alabama.

[rapid geode]

no, cuba will annex florida

its only fitting

[glad ruin]

Good point.

The bay of swamp puppies invasion.

[rapid geode]

haha

columbia will send a fleet of narc subs

[patent hemlock]

many many books

[tranquil swallow]

Tfw I forgot to use coupons, shipping electronics from the US is $60 and that's before duties and tax

No choice though, literally 0 Canadian stores stock LDO cnc motors

[glad ruin]

Speaking as an autistic code monkey, yes. Something to do with ads being inherently designed to induce sensory overload results in my reaction to advertising being... hostile.
https://cdn.discordapp.com/attachments/923433336163151913/1250234320699002880/448019287_2562162723963037_661013670290079050_n.png

[blissful roost]

Puerto Rico was gorgeous, when I visited in 2014.

[latent yacht]

My bandwidth my choice :^)

[tardy badger]

Made it on CNX Software a third time: https://www.cnx-software.com/2024/06/12/the-rpga-feather-dev-board-pairs-rp2040-chip-with-a-lattice-ice40-fpga-for-sensor-fusion-projects/

[patent hemlock]

now if i could only find a reason to get one (i'm kinda overrun with micros at the moment 😈 )

[burnt tendon]

Well, with an iCE chip, they are clearly pretty cool.

[tardy badger]

I know the feeling lol

[night crescent]

SHOW and TELL 6/12/2024 https://youtu.be/fz75Cp58o_o

[night crescent]

ASK AN ENGINEER 6/12/2024 LIVE! https://youtu.be/HDlc8FKCr9o

10% discount code, code is: splitsup http://www.adafruit.com ends at midnight NYC time

[glad ruin]

Hypocrisy anyone? "We would never even think about using your work to train our AI models after holding your content for ransom pending your agreement with the new terms. But just to show you how much we care, we'll update them Soon™. By the way businesses try our new AI subscription."
https://arstechnica.com/?p=2030777
https://cdn.discordapp.com/attachments/887865989453205577/1250632423134330911/Screenshot_20240612-190514.png

[late fulcrum]

Pfft, never subscribed. I had a very expensive paid license. About a year ago, they intimated that I'd be in violation of something or another if I continued to use that license.

[edgy juniper]

I really like how Alex differentiates between 'maker work' and 'manager work' https://youtu.be/GIRkQQHzsxI

[glad ruin]

https://media.discordapp.net/attachments/1088238338638622760/1250077148031488031/GPqGcX-WoAAODik.png

[slim shard]

"DO NOT DEVELOP MY APP"

I think there is a registry option to disable those logins? I had a few school machines that a few kids managed to embed their MS accounts into. I forget what the trick was exactly. (never managed to disembed those accounts though)

[sinful patio]

hello

[late fulcrum]

When I found out my TV manufacturer was considering running ads, I disabled its internet access. No firmware updates for you.

[tardy badger]

I refuse to connect my TVs to the internet

I have a Roku and two Apple TVs that I use which can easily be disconnected from power when they become issues

[late fulcrum]

Yup, exactly.

[tardy badger]

I just tv manufactures would understand that I don’t want cheap TVs with ads and internet, I’ll gladly pay more for one without

Just sell me something that works and doesn’t need updates

Companies used to be able to operate with smaller work forces by selling products that just worked and didn’t have to lay people off as often

[somber spindle]

So tell me how you feel about the RPi IPO 🙂

[tardy badger]

Meh. But it was inevitable. They took a lot of venture capital so the investors wanted an exit.

[burnt tendon]

I sat down and wrote 10,000 words on RPi and the maker movement when they had the whole hiring-a-cop thing at RPi and then realized that I'd probably make too many people angry and saved it as a draft.

[tardy badger]

It was about 4 years ago that I realized that there were too many opinions on the internet so I decided to mostly keep mine to myself

[glad ruin]

I sorta missed that whole controversy. But I have plenty of choice words about their approach to power design (well, lack thereof).

Raspberry Pi is no longer a business/organization I support.

[tardy badger]

I don’t think the power design affects the average user of a Pi, power users absolutely. But typical hobbyists/education users? Probably not. The RP2040 has been good fun. I honestly reach for it before most micros because it’s pretty consistent. Not the best in power but it does what it says it does.

[glad ruin]

average user of a pi
Each generation has become increasingly problematic

[tardy badger]

Well, they hired a firm to help them with power design so hopefully things improve moving forward

[late fulcrum]

I'm quite fond of the Pi Zero, the Pi 3B, and the RP2040.

[glad ruin]

Agreed. Those are the good ones.

[glad ruin]

The question is whether that firm will do what needed to be done with the 4: up the voltage.

[tardy badger]

🤷‍♂️

[fathom flicker]

Sorry if this is a dumb question but what's the pro/con of the 2040 feather vs the esp 32 v2 feather?

I was googling and not finding a resource that answered it for me

[tardy badger]

ESP32 v2 has Bluetooth and WiFi capabilities as well as more RAM. RP2040 has PIO, built in MSC so you don’t need to use additional tools to load your firmware.

But they’re really apples and oranges. They serve different purposes

[fathom flicker]

Copy that. thanks 🙂

[fast ferry]

it does seem like it's getting very hard to shop for TVs without smart features, just plain displays. thankfully the projector market hasn't followed that trend.

[dusty citrus]

There are monitors, or you can consult panellook for displays

Or just don't attach it to the net and use an external board
As they tend to be bad to begin with

[fast ferry]

right now it's easy to leave wifi turned off or unconfigured on devices that shouldn't have connectivity, but I worry the choice will be taken away like it has been in cars. devices shipping with their own connectivity or preconfigured for Amazon Sidewalk or whatever.

[dusty citrus]

Not a car fan... Do cars ship with internet plans or are they attached to some weird radio/network?

[fast ferry]

they usually have a cellular data connection that's managed by the carmaker, sending them all sorts of telematics about your car and driving behaviors. it's also what's used for phone app-based remote start and other management.

the auto industry doesn't make offline, screenless cars anymore.

[dusty citrus]

Eh... Speaking of cars... speedometers use like a common sensor, or are they like serialized/you need a specific model to be putted on ?

I was interested to get a Zhejiang Jonway Ufo, but has the speedometer broken, and by googling I can't find exact replacement parts

(too broke to afford new stuff, but I need something for work, so I look for old and used stuff)

[valid spoke]

I haven't read up on this

The power issues

Do you have more information on this

[fast ferry]

IME the speedo sensor typically has a gear that engages the transmission thru the case, which in turn either drives a cable up to the cluster or has some sort of hall-effect sensor built-in that translates it to an electrical signal. I think most stuff from the last 15-20 years is probably not cable-driven, but the particulars of the mounting hole & gear would vary between cars.

not to mention the ratio of speed to sensor pulses

[glad ruin]

I've talked about it multiple times before in this server, but the gist of it is that every generation of full sized pi has increased the power requirement. As the current draw has increased, so has the sensitivity to voltage fluctuations. This has resulted in the emergence of an entire market of out-of-spec USB supplies that exist specifically to power the Pi.

[valid spoke]

Ahhhh

Is this something they should have addressed in their power supply design

[dusty citrus]

The other issue may be the need to take apart half car to just change a sensor.
Pretty bad that you can't find like docs

Ot maybe I am just using wrong keywords

[fast ferry]

yeah, there's probably not a Haynes manual for that. and if you managed to find a factory service manual, it might need translation.

[glad ruin]

It is something they should have addressed over a decade ago. The original Pi drawing 700mA was acceptable (if a bit high), but after that they should have moved to using a 12V barrel jack.

[valid spoke]

Wait they still use a 5v jack ?

[glad ruin]

They use 5V USB.

And their minimum voltage requirement is noticeably higher than the USB spec allows.

[valid spoke]

Oh my God I forgot it's that micro USB

Even on the 5?

[glad ruin]

I had high hopes when they introduced USB-C in the Pi 4, but they botched the initial implementation and still only support 5V. The Pi 5 needing a dedicated 5V @ 5A USB-C supply is unacceptable as far as I'm concerned.

[valid spoke]

5A!

Why

[glad ruin]

Yes, you read that correctly.

[valid spoke]

I see why you are upset

5A at 5V is wild

Why do they refuse to go to a reasonable voltage level

[glad ruin]

It's a bad design, has always been a bad design, and they keep doubling down and insisting on 5V.

[glad ruin]

Cost reduction, presumably.

[valid spoke]

Have you guys been seeing more issues with people using subpar cables

Asking for help in here

[valid spoke]

It can't be that significant to force their users to get more expensive cables

And supplies

[glad ruin]

I see it more in the octoprint server.

[glad ruin]

And there enlies the fallacy.

(of RPF, not you)

[fast ferry]

seems like the Jonway A380 (UFO) uses a Mitsubishi engine/transmission, so parts ought to be available, but you might need to know the model number of the transmission and have a really good friend who works for Mitsubishi, assuming you're importing the vehicle to some other market.

[valid spoke]

I only have one USB cable capable of providing that in this house

[valid spoke]

Yeah I figured out

It's just plain inefficient

[glad ruin]

But it's fine, because they also sell a dedicated USB-C PD supply designed specifically for the Pi 5.

[valid spoke]

If they were operating constraints of a system I'd understand

But they make the system

[valid spoke]

Oh boy

[tardy badger]

Personally, I think the main issue lies with the fact that peripheral USB devices demand more power these days and there should be a separate supply for USB Type A ports that can be easily enabled with a jumper header

Trying to run it all off a 5V supply no matter how bulky is just not tenable

[valid spoke]

There's so many ways of doing efficienct power delivery and power stepdown

Instead they just

Indeed

[glad ruin]

To be fair, their supply isn't particularly expensive. But that's not the point.

There's a reason laptops, mini PCs, and even tablets don't charge on 5V USB.

[valid spoke]

But even then having 5A requirement on something that small is also just

Why

We recently acquired some rigols scopes for the lab I work in

[glad ruin]

[valid spoke]

The new ones

The USB C ones

[fast ferry]

you say this a lot, and it's not true. the pi 5 specs call for a 3A power supply, limiting total USB power output to 600mA, enough for input devices. they call for a 5A supply when using high-draw peripherals like SSDs.

[valid spoke]

It draws less current than the PI!

[glad ruin]

It's still a lot.

[valid spoke]

It's still so much dude

[fast ferry]

I, too, wish they'd gone full multi-voltage PD

[glad ruin]

If they are going to treat it like a mini PC, they need to design it like one.

[valid spoke]

Theres no reason to have a higher current if you can avoid it

[fast ferry]

seems like they could even make it a modular addon, like they did for PoE

[valid spoke]

Everything is smaller and cheaper

[tardy badger]

I don’t think they want it to be a mini PC. Yes, you absolutely could but they expect people to embed it in projects. Having a lot of power cables going to would not be ideal. Doesn’t justify having off board PD though

[valid spoke]

Less heat

More efficient

Safer

[glad ruin]

Yep, and I would totally use PoE on my 3B+ if I wasn't akready using another HAT.

[tardy badger]

You could do 12V 2A and have so much headroom

[valid spoke]

That's so much more reasonable

I haven't done 5v anything project wise in forever

[glad ruin]

The Pi 5 is, effectively, a mini PC.

[valid spoke]

Most of my stuff is 24v

Car manufacturers are also going to 24v

We just need too much power nowadays

For everything

[glad ruin]

PCs should go to 24V. Or rather, Intel needs to stop upping their power requirements.

[tardy badger]

Higher voltage, lower current. It’s much safer

Up to a point though

Once you start getting above 48V, things start getting spicy even with 10mA

[valid spoke]

Yep

[valid spoke]

Yeah ofc but for example

One of my cars is still 12V

I put a new engine from a different car in it

Big one

Needs a big starter

The wires for the starter are thicker

Than wires I have used to wire up 4.18kv AC motors

Its just insane weight savings

and more efficient

Do they have a blog post or anything about why it's still 5A

I refuse to believe it's only cost

[glad ruin]

https://www.raspberrypi.com/news/introducing-raspberry-pi-5/

Raspberry Pi 5 consumes significantly less power, and runs significantly cooler, than Raspberry Pi 4 when running an identical workload. However, the much higher performance ceiling means that for the most intensive workloads, and in particular for pathological “power virus” workloads, peak power consumption increases to around 12W, versus 8W for Raspberry Pi 4.
Do not design a system that can brown itself out.

[valid spoke]

Brown itself out?

Yeah I was just reading the same thing

I can't believe that thing needs more current than a 4 channel scope to run

[glad ruin]

For users who wish to drive high-power peripherals like hard drives and SSDs while retaining margin for peak workloads, we are offering a $12 USB-C power adapter which supports a 5V, 5A (25W) operating mode. If the Raspberry Pi 5 firmware detects this supply, it increases the USB current limit to 1.6A...

[valid spoke]

So weird

thanks for the info on this big boss

im gonna go back to digikey perusing now

you have a good day

[glad ruin]

seeya

[tardy badger]

I was looking at my stonks and saw Apple was up to $3.27T market cap, which after glancing at Microsoft, it’s (apples market cap) only $0.01T ($10B) short of Microsoft

[somber spindle]

I'm not sure about on the 3B, it might not have started until the 4, but I think the PoE hat doesn't use more than a pin or two, and you can use longer passthrough pins and a second hat

[glad ruin]

3B+ supports PoE.

[glad ruin]

Ah yes, the pinnacle of society. Big number go up.

[somber spindle]

https://forums.adafruit.com/viewtopic.php?t=190145

[glad ruin]

Yeah but it's also thicc.

[rapid geode]

anyone want to invest in my stocks? 3 for a dollar. min order of 1000000000

:x

[tardy badger]

A $3T market cap just feels absolutely ludicrous to me. How do you even quantize the market impact that a company has made?

[somber spindle]

https://tenor.com/view/stonks-up-stongs-meme-stocks-gif-15715298

Yeah but check nvidia

[rapid geode]

well, its a bit of a nonsense number i think. although not as nonsense as some other companies.

[tardy badger]

Recall by itself should dock at least 1T from Microsoft’s market cap

Tesla is probably an example of incredibly over capitalized stocks

[rapid geode]

yeah

apple rev is 380b. being valued at 3t makes no sense

[tardy badger]

It’s worth more than companies that sell 50x the cars and make more in profit than teslas market cap

[rapid geode]

yeah

[tardy badger]

10x market cap is probably okay because usually valuations of companies privately are capped at 10x ARR

[rapid geode]

tesla is realistically worth 300-500b by normal business practices.

[tardy badger]

What’s teslas annual revenue?

[rapid geode]

80-100b

[tardy badger]

10x I guess would be $800m-$1t

[rapid geode]

but profit is low

[tardy badger]

True

[rapid geode]

apple at least you can say makes a high reliable margin

tesla is volatile. they could make 0 cause of the cybertruck fail

[glad ruin]

I'm convinced at this point that stocks are mostly detached from reality. The "value" they represent is largely immaterial.

[rapid geode]

well obviously. stocks are always detached from reality

thats kinda the point

[tardy badger]

Stocks represent sentiment of institutional investors

[rapid geode]

invest in this. pay 15k. get machine. works for me. hahaha

[tardy badger]

There was a time where it more represented Main Street investors (average persons) but that’s since changed with trading mostly being done by algorithms

[rapid geode]

i was taking to the long mill maker monday. they sell 200 machines a month. thats crazy

even if they only skim $100 off each one after expenses ($1800 machines) they are doing pretty well.

[tardy badger]

Yeah, that’s pretty good

I made $455 (before expenses) Tuesday/Wednesday from my shop

Most money I’ve made from it in a 24hr period

[rapid geode]

if i sell 3 of my machine in a month i could pay my own wage well. but i really have no idea if i could sell even 1 let alone 3. (or maybe i can sell 20, i am bad at this)

[rapid geode]

ooooh, nice

my etsy is conssitent at about $100-$150 a month. (with no effort)

[glad ruin]

To me, this makes them barely differentiable from cryptocurrency.

[tardy badger]

The waitlist is 14 people deep for 16 boards which if they all sold.. would be $750 before selling fees on Tindie

[rapid geode]

they are different only in that there is a (usally) tangable asset which keeps the stock from being worth 0

[rapid geode]

nice

[tardy badger]

Current plan is to order parts for 20 boards

[rapid geode]

i need a wait list. hehe

[glad ruin]

And stocks are somehow far less power-hungry.

[rapid geode]

my neighbour had a 3 year wait list to buy one of her guitars for $30000

[glad ruin]

I don't preorder things.

[rapid geode]

i try not to. sometimes theres no choice if its custom amde

like, i couldnt really stock my machines. they have to be bought then built.

10k down, 5k on completeion. something like that. where the 10k covers the hard costs. but the buyer is still holding my "profit"

[tardy badger]

It depends for me, if it’s a reputable company? Sure fine if I know it’s going to be a long wait to get it anyway.

Smaller less know companies? Nah

[rapid geode]

true. needs to be a reliable company. not a kickstarter, or the line (unless its throw away money). mech keyboard companies are failing every other week with unfilled orders

[tardy badger]

I occasionally do preorders for boards that are a little pricier to build than usual. But I’ll generally just start by stocking a few and slowly building up the number stocked with each sell out.

[glad ruin]

... almost as if the market is saturated.

[rapid geode]

well, its more complex.. or maybe simple. sales just fell off a cliff. peoples wastable money went down massivley the last year and will only get worse

and keyboards are a purely uneecesary purchase

[tardy badger]

Yeah, hard to afford cool when you can barely afford food

Plus in that situation you have people weighing Chinese reseller for $12 vs $100 keyboard. They’re probably gonna go with $12 because it’s okay enough for them to get close to what they want.

[glad ruin]

I actively avoid buying obvious clones.

[tardy badger]

I just buy dumb Logitech keyboards and mice that don’t do anything except type and click

No AI software, no frills

[rapid geode]

i have a steel series which was $40 or so. good enough.

i have some mechanicals but they are cheap too. $60 maybe

[glad ruin]

... except didn't they just add AI to some of their stuff?

I use a (wired) Razer mouse and iKBC keyboard.

[tardy badger]

I use incredibly basic Logitech keyboards and mice

B100 and K120

They are about a basic of peripheral as you could buy

[glad ruin]

Yeah, I've worn out a lot of logitech devices in the past.

[rapid geode]

logitech mice have some ai that waits 6 months then makes the mouse stop working.

like clockwork

[blissful roost]

Logitech K120, lasts longer than a Nokia 3330.

[spice moss]

so there is new kickstarter SLS what seems able to print pcb too https://youtu.be/UIqhpxul_og?si=3iRI5HTx3-EcmFD3

[dusty citrus]

I don't see the deal with expensive peripherals
Cheap stuff does the same, key can be reprogrammed anyway
Fancy specs do not seem to be applicable in real word

I wanted to build some in the past, but I quickly dropped the project due the mess that the ms docs is for drivers
(Also cause so many stuff is bloody expensive, and I don't live in china/close to china)

[tranquil swallow]

expensive peripherals are a capital redistribution solution

[rapid geode]

yeah. its getting poor reviews from an "its not ready" standpoint. they have a lot to sort out. but when they do it will be awesome to have an SLS for under 10k

[tranquil swallow]

Sounds like successful businessmen leveraging the silicon valley mentality, I'm seeing videos of their product everywhere

[rapid geode]

i dont have an issue with it as long as they are up front and dont pretend its something its not

its a kickstarter, its fine for them to say "the review units are prototypes and x y and z are fixed for production (with proof)

their response to the critiques will be key to actually being trusted

[late fulcrum]

My main interface with the computer is a keyboard and I use it for hours a day, so I use quality keyboards. For me, it's worth it.

[rapid geode]

but whats the threshold. will you pay 299 for caps, 400 for a ceramic coated case, etc etc?

[tardy badger]

K120 is peak quality for cheap keyboards lol