#general-chat
1 messages · Page 19 of 1
hey i know this might be easy but i have struggled with this for a while and its building a generator. I understand (at least a little ) of Faraday's law. I have a 2,000 gauss magnet from amazon (https://www.amazon.com/dp/B07F79WNF7?psc=1&ref=ppx_yo2ov_dt_b_product_details) and I have some insulated copper wire which does conduct electricity (I tested it with a voltage meter) and tied it originally around a cut up cereal box which I tuner into a tube and it has around 100 turns when it did not produce electricity I took off the coil but still nothing. The only thing I can think is maybe the wire is not copper as I found it in Hobby Lobby craft section but it still conduct electricity even while it is in a coil. Please let me know if anyone has any ideas. Thanks!!
please don't cross-post
sorry
Current is induced in a wire when a magnetic field moves through it. I'm not sure how those magnets are magnetized, but possibly not in the right direction to send the field through a coil around them. And I quite doubt they're really 2000 gauss (most amazon listings are somewhere between exaggeration and utter fantasy)
ok that would also make sense
The type of wire does not matter, but if it's uninsulated copper wire, you will have less of a coil and more of a short
You need magnet wire
Nvm. You said it was insulated
How are you testing if it produces any electricity?
I picked up magnet wrapping wire over the summer last year. Super small and perfect for bodging connections.
It's basically impossible to hand solder qfns with an iron, but it is easy-ish if you have a hot air station or a hotplate.
But you can definitely touch up qfn pads if you have a chisel tip for your iron
I do this a lot if I’m doing qfn without a stencil
Is anyone up to helping me see if a little script i wrote can be broken?
Build and Run your Python code instantly. Online-Python is a quick and easy tool that helps you to build, compile, test your python programs.
i'm still learning so any suggestions or corrections would be helpful
Adafruit posted this and said to make guesses about what it could be
I want to think it’s a Metro M7, but I also think that might be an artifact from reusing the board design
Guessing a device with NXP main chip and an airlift or equivalent.
I’m thinking it might also be an ESp32-P4 but I’m not confident
Well, says imxrt 1011, and that's the LQFP package in the center.
The chip footprint matches up
I don’t want it to be the obvious thing lol
An ESP32-P4 would be a much larger package I think
It’s like a 100 TQFP from some of the pictures I’ve seen
Or 144TQFP
Idk, maybe there’s also a TQFP80 of it
But it’s probably an iMX M7 board
Yeah, I'd tend to agree. The P4 probably won't be available for some time, and if you were going to make a board for it, you'd want to do one with camera/display interfaces, etc.
that product is already in the store 😉
but not yet available #ChipShortage "Coming soon"
4950
Digikey has 404 500MHz MIMXRT1011 in stock
Is this gpu toast
Not entirely certainly
If no lanes go through there it can? Be alive
Is there any disadvantage to SAMC21 apart from it being out of stock… ?
Also, do you all think I’ll be able to use arduinos zero edbg to flash an arduino boot loader on samc21 on an external board
👋 Hi, I was looking at the ultimate gps breakout and was wondering about some of the specs. Some friends want to build a weather balloon and I'm trying to figure out if the 18,000m max. altitude is really the maximum - or if this chip will report higher altitudes if the max. speed is <500ms⁻¹.
Ah, it would seem I missed the faq for this product 😅
this looks like it might work for what we need
I hope Ladyada broke out some of the cooler pin connectivity’s that it has like SPDIF
I'm fond of designs like that, myself. Pushing the whole Bluetooth/WiFi stack onto a separate processor has a lot of appeal for me.
Depends on how far that crack goes… if it doesn’t reach the teeny tiny capacitors on the left side of the circle, it’s probably totally fine — that notch is, as moticul said, purely mechanical, so as long as no traces cracked with it, there’s no problem (aside from the fact the GPU might slip a little with the bent notch, causing connection issues)
check whether the crack has come near any traces. GPUs might have traces in inner layers that won't show up on optical images, though. also, if you're having that shipped to you and don't have it in hand, the crack could propagate during shipping. you could theoretically stop-drill the crack to limit its further propagation. (this is a common practice in aircraft maintenance)
should be fine, the CoCom limit in MT3339 is (Altitude) && (Speed) and not (Altitude) || (Speed)
Is pcbekey legit?
Never heard of it
https://www.pcbway.com/ mentioned recently
PCBGoGo is legit, it turns out
Indeed, ordered from there once
Though I think my package had jlc stickers on it
Or was it pcb way
Idk was years ago
But mailed them too if they can supply c21
Pcbgogo looks like it may be ordering from pcbbway, pcbekey as if they are ordering from jlc.
But idk, it looks too non legit
I've had good experiences with jlc. They're also the cheapest option
Ordered 2 batches of boards
You basically have to order a batch unless you want to pay $2 + $20 for DHL express per 5 boards. There is a cheaper shipping option, but only if you don't need a stencil
I think they have UPS first class or whatever for a couple dollars? Like Adafruit has
I paid $19 for a 6L board + stencil + shipping lol
Granted, it took 2 weeks
Always nice when you’re not in a rush
The results speak for themselves though
After dark is nice… I like purple
It’s a good idea to run the first batch of prototypes in green and HASL for saving money on the first and almost certainly imperfect run though
Purple doesn’t cost anything extra :D
From jlc it does iirc
is there a PCB help channel here?
It didn’t show a difference when I loaded a board
Beat me to the punch lol
6L boards are ENIG by default with JLC
Their current promo is $2 per batch of 5
Just find one of those nice WLCSP chips and you’ll be golden
Look how great this 0.18mm pad, 0.4mm pitched part came out
I’m guessing a Pico clone would be a 6L design
They cap and fill via in 6L boards too
Probably 4 at the very most
The Pico itself is 2L
This RP2040 is just 2 layers
Ohhh, I might be able to make my own take on the Pico W super cheep then…
Well, you could probably use an ESP32 as an airlift for cheaper than the pico’s Wi-Fi chip
In fact, I think one of the Rp2040 boards that’s popular the challenger I think has an ESP32-C3
Would that be as transparent to use for the end user as the Pico W’s chip?
Probably easier since you could use circuitpython airlift libraries with it
Ohhh, nice… I shall keep this in mind
Raspberry Pi Pico board with 8Mbyte Flash and integrated WiFi
Looks like it’s an ESP8285, not an ESP32-C3
Hackaday had an article that the ESP32-C3 is “the new ESP8266”, so I’ll probably go with that
Yeah, it’s a good chip
I had no idea how tiny this was 🫣
Pictures online don’t really give you a perspective on size
Trying to understand how to interact with the SRAM chip on my IL91874 display to write my own driver (already got it working without using it and just storing framebuffer on RP2040's RAM)
After reading the code and part of the chip's datasheet, I think data is stored there and gets read byte by byte from the MCU to re-send it to the display, is that correct? Im not really understanding what this function is doing https://github.com/adafruit/Adafruit_EPD/blob/master/src/Adafruit_EPD.cpp#L313-L348
Thus, i could store my whole framebuffer data in the chip in any format i want, just being careful with the addressing of the data (i'd format it in the same way as done with MCU's RAM, right?
References:
- Product: https://www.adafruit.com/product/4098
- Display-specific driver: https://github.com/adafruit/Adafruit_EPD/blob/master/src/drivers/Adafruit_IL91874.cpp
- SRAM-specific code: https://github.com/adafruit/Adafruit_EPD/blob/master/src/Adafruit_MCPSRAM.h
- EPD main code: https://github.com/adafruit/Adafruit_EPD/blob/master/src/drivers/Adafruit_IL91874.cpp
- MicroPy code (didn't look much into this, as it gets messy jumping through many files): https://github.com/adafruit/Adafruit_CircuitPython_IL91874/blob/main/adafruit_il91874.py
Please tag when answering
Well, the IOL implant went well, but even though my vision is 10x better I'm still gonna require some practice to get my hand-soldering SMT skills back.
Maybe the answer is more flux. It always seems to be more flux...
More light and more magnification also help me
It doesn't look like it in this picture because the camera adapted for it, but this light over my workbench spews out 31000 lumens
I'm actually shocked at how good my vision is now. And after 10 years with monofocal vision post-lasik, having a large DoF is amazing.
the EDoF lenses ain't cheap but for the quality of life well worth it.
I can't help wondering how they work
I'm also guessing that like most repairs, the parts cost is dwarfed by the labor cost, so may as well use good parts.
I'm still thinking the procedure itself was in the 5 figure range, but I really haven't priced such things.
Nah, even without insurance it'd only be about $2500/eye.
But a $1000 delta sounds cheap at the price. A friend of mine who's nearly deaf got some extremely high end hearing aids, and while he was writing out the check (for several thousand dollars) to pay for them, he could hear the scratching of the pen on the paper and realized it was totally worth it.
Surgical costs are about $1500 before insurance. Its only a 10 minute procedure under a local.
Wow, things have certainly improved while I wasn't paying attention!
This is in Japan mind you, don't know about the US cost.
Ah, that explains a lot!
And insurance also pays for 70% of the surgical cost.
But the EDoF lenses were out of pocket
If you'd said ¥15000 I might have guessed 🙂
My total cost was 190,000 yen for the one eye. Other eye thus far hasn't had cataract issues.
Not bad!
Eye upgrades are so cheap these days, it's amazing
I hear in the US they're actually using EDoF IOLs for non-cataract general vision correction.
I continue to consider eye enhancement...
@sharp nexus please don't DM me, any questions you have would be better answered here in the discord for others to learn as well. And just as a note, it's generally discouraged to DM people without asking them if they are okay with that first.
and to be clear, I'm not upset; I just want to make sure you know that a lot of us prefer to help in the open here so others can learn.
Good evening, perhaps someone can provide some direction. I am working on a sewing project and I plan to send data from my Adafruit CPB to my computer. I am using the basic examples provided by AF for the Arduino IDE. While I am comfortable sending data over serial, and using the Adafruit Connect App to have the input print on the console, ...I am confused as to the steps to send data (for example, the accelerometer data) from the CPB to my computer when I am not wired connected?
how could i request the value of an HTML element from a website?
i want to grab the time from https://Saturn.live/
dont they have an API to request the value? if not, you'd probably have to write a web-scrapper
idk
grab the time
there's for sure some free API to get that, any particular reason to use this specific web?
anyway, if you have internet access in that device, doesn't it also have time? either built-in clock or via NTP
that website has a timer for how long is left in my current class
i just realize that i can just build my schedule into the code lol
i don't need the website
https://youtu.be/pRHYJ5DspbU?t=508 almost 9 years ago I was on Show and Tell :) a blast from my past!
Is this the right channel to ask about which type of wires to use? I figured HW is more for circuit board design. If I need to move this, no problem. My issue is, I have been prototyping some little designs without a breadboard because I am 3d printing enclosures and stuff. I break a lot of my soldered leads off from my LED's copper solder spot or the pin one my microcontroller. I decided to try a thinner more flexible wire, like in the link below. These snap off pretty easily too. Is this just due to using cheap wire or is there a specific type/brand that works best for small little projects? https://www.amazon.com/gp/product/B07G2HFCS1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
Total 6 Colors: Black、Red、Yellow、Green、Blue、White Length:each color 42.6 feet(13 Meters) Nominal Voltage: 300V Testing Voltage:2000V Temperature Range:-60 ℃ to 200 ℃ OD Tolerance: ±0.1mm Insulator: Silicone Rubber Conductor:High-purity oxygen-free Tinned Copper (1) Gauge:28AWG (2) Copper Number/W...
I'm fond of this for flexible wire, some wire from sketchy vendors can be aluminum which doesn't last long. https://shop.evilmadscientist.com/productsmenu/871
Unfortunately if there's a stress/bend on a wire, especially if it goes back and forth, eventually any wire will break. Some are more resistant, like braided cable, and certain alloys, but any sharp bend will be bad news for any wire
Like they put aluminum in the wires? Wouldn't that make it less conductive?
Yeah, I figured that's the reality of it, but was wondering if this cheap wire could be improved/causing the issue.
Yes, the aluminum wires are less conductive and more brittle. I think they're terrible and try to avoid them.
Aluminum is cheaper tho, so some vendors will sell aluminum at copper prices to make more money
Some will even use copper coated aluminum, so it looks like copper wire but isn't
Potentially. Stiffer solid-core cable is more likely to snap off entirely, whereas fine braided is more likely to flex and while some strands may break, the entire thing is less likely
Yeah... sneaky sneaks
Potentially dangerous sneaks
Ahhh, I see! So is tinned copper a cheaper type of stranded wire?
"tinned" means it has a pre-applied layer of solder
And for stranded wire, that keeps the ends together
ohhh, the ones I am using are loose and not soldered together
Applying solder to the end of a stranded cable can help strengthen it near the end. Especially if you're clipping it into something, rather than it spreading out, the solder keeps it in place and takes some strain off the conductor itself
Strain relief is probably one of the best things to consider adding -- like, if you have cables being pulled to nearly 90 degree angles, that's gonna break something. If you add a rubber strain relief, that reduces the bend angles and makes more of the cable bend more gently, which reduces strain and likelihood of breakage
Heat shrink tube or even electrical or gaff tape can help with that
Truth be told, even hot glue works wonders in relieving strain. No conductive and easy to use, though it is a bit messier than the alternatives.
Yeah. Your preferred material depends on what you’re doing — hot glue is great for things you probably never need to mess with again
Generally any stranded wire will be pretty flexible, but any bending at the solder joint where they’re all essentially welded together will put stress on the wires that can cause them to break pretty easily. Reinforcing the solder joints with a ball of hot glue has done wonders for me, at least.
Sharp bends kill wires
Sharp bends at soldered ends kill wires much faster haha
Yeah, lol
Most wires aren’t going to break at the first sharp bend you make; outside of solder joints, it’s usually repeated flexing or pinching of wires that causes major problems
A PCB that can solder itself and then be used to solder other boards!
PCBs manufactued at PCBWay - https://www.pcbway.com
Get a free trial of Altium Designer with 365 and 25% off your purchase - https://carlbugeja.com/altium
My Electronic Kits - http://flexar.io
My Merch Store - https://teespring.com/stores/carl-bugeja
Help me make more projec...
antenna ground plane ftw
That's like the heater in the fancy COVID tests
No ASK an ENGINEER tonight - the show returns next week! We have some visitors in town and hope to score an interview with them we can post up! We'll publish the EYE on NPI, New Products, and more, this week stay tuned!
Is it reasonable to assume that cereal bars and granola bars (that you get at the store, in boxes) are baked? I was just cleared as not allergic to baked milk and I've always wanted to try these.
Not always. Research first.
hm ok
thank you
Oh dang! I can eat chips ahoy! Whole new world out here, my dentist is gonna get that boat after all
I haven't even considered everything that's opened up. If folks don't mind, sound off with your favorite baked snack food that comes in a bag or box and I'll see if I can eat it!
Bake-on.... 🥓
😁
Also called German pancake, polish pancake, etc..
Is that a brand? Let me look it up
No, it’s homemade
ohh ok
But is really easy to make
Ah it's got egg, still potentially allergic to egg
I have an a mild egg intolerance
Baked eggs are generally denatured but definitely get that checked before diving in
We don't tolerate intolerant people around here!
Yeah I am in the process of getting checked, you just have to do one thing at a time. Next is cheese, then butter, then baked egg, then scrambled egg, then normal egg. This allergist is also getting a boat
A bezos sized yacht at this point
what has the world come to? The oreo website has a login functionality
Weird
Interesting thing, I found out I had an egg intolerance when I got the flu shot from the military and my body decided to take me to the edge of death in the middle of nowhere
And then found out my grandma can’t have the normal flu shot for the same reasons
I have had severe egg allergies my whole life, but have always been able to get the eggy flu shot for some reason
I do love having no allergies...
I can tell you for a fact that some are NOT baked. Some granola bars are heated up in a vat, mixed, formed, and allowed to cool; this may or may not heat up milk enough to denature the enzymes you’re allergic to (but probably better to assume not)
That's a good point, one I was thinking about, the proteins may not change shape enough]
I'm going for products that are labelled as baked/soft baked
Safe bet
I guess the yolks on you then
Oi! Dad jokes are my thing! 🤪
I could be willing to make some... Eggceptions.
I ended up spending 20 euros for a chicken and some minced meat from a butcher that I already hated, when it should have cost me 10 euros , somehow this makes me even more mad than my blocked bank account with my money inside, which then I reported but I have no idea when it will be fixed or if it will be fixed
they always say that you should support smaller activities, but if those play with you I see no point
I had a large amount of money tied up from the middle of October to a week ago, I feel your pain
3 months? now I really see why people use cash only
My bill pay service misinterpreted cents as dollars and sent 100x as much as I intended.
banks and financial services run on post-facto auditing and fraud detection, so as long as you fit enough of the majority (white, male, middle-class) signifiers, you'll probably be fine, in the long run
I'm massively confused by this conversation.
in my understanding is that their app is garbage (like any other old italian bank), so when my phone broke and I installed it into another phone, it weirded out not recognizing my smartphone and also failing to unlock it although they initially said that they got it unlocked but it wasnt ever like that, then they started to ignore me. I ended up contacting the central bank which should work as judge between banks and customers
My banking app works really quite well.. and I've had no problems with using it on different phones, even at the same time.
And, of course, I also have the "old fashioned" option of logging in via a browser. 👍
the one that is giving me problems is buddybank, online I saw similar problems, they have only the mobile app weirdly
Oh dear
also the support number is there but nobody replies, it hangs up a bot that says to contact them via email, which then hangs down, your write a mail and nobody answers
yay I'm sorry I'm pretty mad
If I wanted to run a decentralized code repository, where users could append revisions indefinitely, would ipfs work for this
Hi guys
i've made some test code based on it, but only got it working for single-byte reading, however the C++ code seems to read in the same way i've written... any ideas? ```py
from machine import Pin, SPI
spi = SPI(
0,
sck=Pin(2),
mosi=Pin(3),
miso=Pin(4),
)
cs = Pin(6, Pin.OUT)
cs(1)
------- Init -------
Clear (?)
cs(0)
for _ in range(3):
spi.write(bytes([0xFF]))
cs(1)
Sequential mode
cs(0)
spi.write(bytes([1, 0, 0x40]))
cs(1)
def write_byte(address, value):
cs(0)
spi.write(bytes([2, address >> 8, address & 0xFF]))
spi.write(bytes([value]))
cs(1)
def read_byte(address):
cs(0)
spi.write(bytes([3, address >> 8, address & 0xFF]))
ret = spi.read(1, 0)
cs(1)
return ret
def write_bytes(address, *values):
cs(0)
spi.write(bytes([2, address >> 8, address & 0xFF]))
for value in values:
spi.write(bytes([value]))
cs(1)
def read_bytes(address, n_bytes):
cs(0)
spi.write(bytes([3, address >> 8, address & 0xFF]))
ret = spi.read(n_bytes, 0)
cs(1)
return ret
address = 70
data = [0x11, 0x12, 0x13]
for i, v in enumerate(data):
write_byte(address+i, v)
write_bytes(address, *data)
print("Single byte read")
for i, _ in enumerate(data):
print(read_byte(address+i), end=" ")
print("\nMulti byte read")
print(read_bytes(address, len(data)))
Edit: Also tried doing a loop which sends the previous byte each iteration (like EPD code) but didn't work either
Is anyone actually middle class anymore? I wonder what it's like...
Can you be more specific about "didn't work"? That could main anything from a syntax error to a function returning None to an off-by-one error in the address of the data you are actually getting back.
my bad, error was that multi-byte readings always returned the last byte i've written, repeated n_bytes times
That sounds like the address auto-increment feature isn't working. "Sequential mode" was mentioned in the comment, so maybe double-check that command.
writing works with both single- and multi- byte transfers
but i onyl managed to get reading works with 1 byte transfers
yeah, but all the C++ code does (as far as i could manage to understand it) is:
- send
0xFF3 times -- no idea why it does that, i haven't seen that on the datasheet + doesn't seem to break if i dont send those - send the sequential mode (
1 << 6==0x40) into the configuration register, command ID for writing there is the first byte (1) on thatspi.writeline 🙃 - then, read and write in single- or multi- byte transactions
wait, maybe the config register is 8 bits and i just have to remove the extra 0 there...
yeah, that seems to have fixed it 🤦♂️
thanks for the help!! 🤓
What kind of tech can I use to connect this FPC on to enable touch screen? I want to connect this to my raspberry pi once that’s figured out.
I believe those touch screens are I2C controlled so you need a board that would accept that flat mezzanine connector and hook into your Pi’s I2C pins
Looks like a 10 pin connector
So I2C is like the term for what that connecter is? And I need to find a board that has that and that can connect to my pi? If I’m understanding you right.
And is a 10 pin connector is basically five pins on either/each side of it? And in total is ten?
Right, you might have to make your own connector. I’m not aware of any i2c mezzanine boards
I think what I hate about inflation right now is not only are prices going up, but quality of what you get for the higher price is also down. Bread from Walmart used to be $0.50 for a 1.5lb loaf but now it’s nearly $1.78 for a loaf that is like 1.25lbs
So it’s a combination of shrinkflation and inflation
I just need to get some 2lb loaf pans to make my own sandwich bread
I know everything is getting to be two expensive. The pin connector on the board under the top connector with the ribbon cable dose anyone know what that is? When I checked they didn’t specify what that dose.
Do you have a data sheet or part number for that display?
Cast iron Dutch oven gang here
Pullman loaf pan works
We use a Dutch oven for sourdough
And round artisan French loaves
It’s a mezzanine flat connector, a 6+2, the two end ones are usually connected together so it’s like power + 6 data pins + power
This might also be another variant
Hirose is the most common manufacturer of these
I this this is the mating connector for it: ok-14f010-04
👋
? What that
Hello👋🏻
It’s the mating connector part number
I'm wondering if tricolor OLEDs always do the super long multi-pulse refresh cycle?
It’s what the touch connector connects to
Adafruit has some red/white/black ones that look super neat but the refresh time is reeeally long - I'm wondering if I use only white/black, if the display will do the full three-color blanking? I only need the color sometimes
based on "multi-pulse refresh" + 3color i think you mean e-Ink displays, not OLED ones
i have one i've been playing with the last weeks, as far as i've seen with tests, it seems that the refresh becomes slow because it has to do a lot of operations to make pixels red, when only using white and black data, it seems to work faster, but it still takes a bit of time to update
🤦♀️ yes you're right
Right interesting
If you only write in white/black, and then refresh, does it still do a full 10s+ blanking cycle?
anyway, since those screens are recommended for somewhat-static purposes (the documentation about my particular model says updating more than once every 3 minutes could damage it).... i dont think having to wait a 5-10 seconds to update is a big deal
if you want something faster you could use a TFT(RGB)/OLED(2 color) display
My use case is updating it like once an hour, or immediately when a button is pushed
So the problem is that users might find it annoying to wait a while
It needs to be low power and daylight readable so I think TFT/OLED is out
if not done already, i'd add some code such that if button gets pressed twice fast, you won't redraw
Wym? Wouldn't you get junk on the screen?
i'd just warn the users about the refresh time, it's not like the technology is perfect
i mean, drawing on the display twice too fast, could damage it
so i'd store a timer to use it as "not enough time has passed since last drawing, dont draw"
Do you know if the 2color epapers are more durable?
no need to go into details, but my C driver for the display does:
void flush_panel() {
if (!can_flush)
return;
send_framebuffer_to_display();
refresh();
can_flush = false;
schedule_function(set_flag_back_true, 3 * 60);
}
So could i connect the touch screen cable to that? Even though it’s smaller? Or is it a different ribbon cable that connects to it?
i dont even know what causes the damage, or how the damage affects the screen, all i know is that i've read that i shouldn't draw faster than 3 minutes, and im not doing it 🤣
The connector in the ribbon cable plugs into that connector part. You would likely need to make your own PCB that uses that part and can connect to the pi gpio headers
LOL
i guess the way in which red pixels "appear" is by toggling between black and white many times, thus making it too often may damage those pixels, but i honestly have no clue and im just guessing based on what i see when thedisplay refreshes hahahahah
Ok I got it thank you. You are very helpful
Please don’t DM me, any questions you have can be answered here, and it helps other people learn too. Also please ask before sending a friend request. I don’t usually accept them for my own reasons
Oh I’m sorry
dm's skerr for pumpkin recipies
No, there's actually red pigment floating around in there, along with black and white, I believe. The displays chooses which one is visible based on the voltage applied to the pixel.
Essentially, Red is another pigment and you trigger it by accessing another memory register, which is why tri-color displays are slower since that needs to be updated as well.
but what im saying i've experienced is not about sending that second buffer of red data (negligible with the SPI speed)... i meant that the time the display spends refreshing seems to be longer when red is involved
eg: sending only black/white data + full 0s for red seems to be faster
not that i've measured the time, i should 😛
It does take longer because it has to deal with Red as well. It's pretty much another set of pixels to manage.
As for refreshing epaper displays too fast, I don't think it matters as much as long as the display is powered down at some point. I have e-paper clock that updates every minute and it doesn't mind. What it does mind is getting the wrong amount of voltage, which can happen if it's not powered down properly or just plain old resistance. I've had ghosting issues before and it's because I was using jumper cables and the resistance through those wires is enough to screw up the image.
good to know, thx
i was planning to use it on my QMK's keyboard just to show some static info like the features i've enabled when compiling, or the last commit's hash of my fork when i compiled it
so i wont really care about updating it often, at most i will add some low-precision clock or today's date
I had to look up some datasheets and some code I tinkered with before and yeah, red's pretty much another black in terms of how it's dealt in the driver.
FedEx, the masters of delayed packages
I only know one, pumpkin pie. And by know it, I mean I know how to google it
that's exactly what my code does, allocates a 2*width*height bits array(1st half black, 2nd half red data), bitwise operations to fill it up, send the whole thing (with the appropriate commands) to the display
California residents, if you wanted a single Prop 65 sticker to go on your soldering kit tool box, where would you look? I can only find reels of them and I'm not dedicated to the meme.
Could you run GPT-3 on a raspberry pi
if you hooked up a graphics card
Also does anyone know about Goose AI or maybe I could just run it on an Azure server
Jeff geering tried GPUs on the rpi iirc. There's a vid on YouTube
Dang, google just laid off a ton of people 😳
That’s like nearly 40k layoffs announced in the last week or so
Hopefully those people are able to find new roles
I wish I had the time to park on the Adafruit listings for RPi 4. They’re always sold out in a matter of seconds
People crimp RJ-45 connectors on CAT-5E cables, why don't we crimp other connectors which standards support the said cable?
what other standards do you have in mind?
Something like USB
I have a 2010s PS/2 keyboard that I'd like to convert to USB
AFAIK the protocol that they are talk is USB
some USB cables have crimped plugs
also PS/2 keyboard protocol is completely different from USB. you might have a keyboard that's new enough that it can use a passive adapter for PS/2, but that requires keyboard hardware/firmware that supports that
I'm pretty sure it's compatible with passive adapters, sure enough not to be disappointed if it would turn out otherwise
note that Ethernet-capable twisted pairs are a nominal differential impedance of 100 ohms, vs 90 ohms for USB. it might not make much difference for DIY stuff, but it might for commercial products
Agree, it's more suited for data
i think you can't use UTP for USB anyway, because the USB common-mode impedance spec requires shielding to achieve
I partially wish that USB was as clear with specifications as these standard cables
i think they're fairly clear in the specifications? there are also official conformance testing procedures that probably cover any remaining ambiguities
The USB type C suffers some from that
i think type C has the problem that often the spec you need to read is in a different document, because there's just so much stuff to cover
Yeah
Great Scott did a testing some months ago, mostly regarding the power standards on these cables
Looking further, I guess that's more of a niche thing, and niche enough for corporate people aren't interested in mass-adoption of it.
Just wanted to make sure I understand this board, the appeal is it can output 5v in all of these extra pins, right? https://www.adafruit.com/product/5650
If there is one thing Adafruit is known for, its mega-blinky-fun-rainbow-LEDs. We just love sticking NeoPixels anywhere and everywhere. When we saw the new 'PIO' peripheral on ...
8 x consecutive GPIO outputs with 5V level shifting for PIO NeoPixel driving
How did you learn hardware protocols, I want to make peripherals
That's my take on it. Since the shifter can be bidirectional, they can also be used as 5V inputs with not too much additional effort.
Ahhh, nice thank you!
that's part of it, but the generally bigger appeal is that it takes care of sending the neopixel data out, for all the outputs, in the background.
Anyone knows something about Fluke?
I have dead 179 True RMS after some heavy bath I guess
corrosion eaten some vias etc.
And I don't know where they go (inside PCB)
Hey, some questions regarding the floppy music, what are the required voltages? 3.5" floppy drive*
I think I've searched everywhere and didn't get the right result, although I know 1 place where it can be mentioned - fdd datasheet
Looks like it is powered by DC 5 volt, and logic signals are also 5 volts
At least for my SFD-321B
Me checking FedEx tracking for something scheduled To arrive today but it’s only just reached the local hub:
Unfortunately I didn’t have a choice about shipping so I’m at the whims of FedEx
First it was supposed to be here Wednesday, then yesterday, now today, and I’m guessing I’ll actually get it tomorrow
But when I do get it, it will be awesome because it’s my DigiWish prize 🙂
The Nordic PPK
It’s all coming together and I love it
When I order something fedex i do so knowing "it'll be here someday"
If I need something guaranteed in a couple days because of an active project I'll go with UPS.
@sand frigate It's basically a board with a built-in PXL8 friend. https://www.adafruit.com/product/3975 Plus it's got other goodies built in but that's the basic idea. Making the setup more compact. Perfect for replacing the 3 separate microcontrollers in my halloween dragon mask with 1 PCB. Can't wait to get my hands on the scorpio. Ordered 2 today. 🙂
I’ve had more on time consistently lately with the USPS and DHL
UPS has definitely been better than FedEx though
i had something to arrive today as well and it says delays at the origin. they must be having some issues
shiny new toy design
Some kind of engraving or etching machine?
cnc milling machine
Nice
That looks like an expensive project
....
no comment
its a reconfiguration of this one
i dont need to spend much "new money" luckily. few hundred bucks
should wind up 10x more rigid and more precise though.
this is how it runs now. you can hear a little chatter in the Y moves. https://www.youtube.com/watch?v=6oHRGH6-teQ
testing
4mm 3 flute cutter, 7500mm/m (when the control can keep up) 36000rpm
Sounds ok to me but I’ve never used a CNC. If I could mill aluminum enclosures instead of 3D printing 😳 sounds dreamy.
Same, I’d go broke milling aluminum lol
This 👆
Id be smelting my own cans and stuff.
I love diy aluminum smelting and pouring projects
I heard HDD enclosures are good for melting down
It's a shame good barstock is so expensive
Metalworking is so cost prohibitive and inaccessible for most people
It's really only viable if someone is paying you to do it
don't exist already manudactured dielectric actuators? I found this, they have different designs and instruction but I don't want to deal with it https://softroboticstoolkit.com/components
(mainly because I'm broke, so I need something that I'm sure that works)
I think that's been true for all of history as well.
Not a sarcastic comment, just interesting
Be grown tired of waiting and not having time to buy a CM4 so I’m going to attempt to make my own version of one.
getting stuff from Ali-express is like Christmas
you know its coming, but you dont know when
the same can be said of their search engine
lol their recommendations are so funky.
tempted to buy a bag of hemp seeds from AliExpress and making hemp rope
I passed a hemp farm in NY. I saw an open field but there were tons of gates with security cameras. It wasnt until I passed the main entrance did it make sense.
Sometimes it just doesn't show up (like my DIN rails, high voltage connectors, and Axidraw clone)
did you check Automation Direct for din rail? Theres also c3controls.com too
Ive only had small things not show up. When I spent $150 for a rotary table it showed up 🤔
Im excited to use these things though
Somehow I doubt they offer $4 DIN rail
how long do you need?
This is close. 2 pieces, 1 meter each
DN-R35S1-2 - DINnector DIN rail, slotted, 35mm, 7.5mm height, 1m length, plated steel. Package of 2.
I think shipping from Italy would be considerably more than the cost of the rails
Aluminium used to be $3-3/50 a lbs here, now its $8-$12. Thats in volume. If you just buy small bits it is $15+. Steel (especially fancy steels) is 2-3x normal price as well. its really bad.
They are in Georgia USA. I think you get free shipping after a certain threshold too. We order from them all the time
Looks like mine is VCDG
I have a phone charging battery I'd like to use to power my feather via usb, but the battery keeps turning off. Is there any way I can prevent that?
Some of these units also switch off when they don't think they're being used, so if your circuit isn't drawing enough power, they'll shut off. The easy fix is to hook up a resistor or something to waste enough power to convince it to stay on, but that will of course reduce battery life.
hmmm.. I wonder if I could get 12volts from the usb c port, so it could power the feather and my rgbs...
If the USB supply supports Power Delivery, along with that voltage, you can use either a power delivery controller to tell it to do so, or take the simple route and use a cable like https://www.adafruit.com/product/5450 that just asks for 12V.
thank you!
Recommendations for a voltage regulator with variable input, 5V at least 500ma output thats very low noise, And/or what spec to look for when looking for such regulators?
The lowest noise are generally the linear ones, which can only regulate down (input voltage needs to be higher than output voltage)
As long as it’s low dropout so input doesn’t have to be much above
my battery only outputs 10v anyways, so that idea goes out the window for now. I suppose simpler would be to go the other way, take my 12v and drop it down to 5v and supply the usb vcc pin when my board is in use.
Is there a housing enclosure for the 64x32 RGB LED Matrix Panel - 4mm pitch ?
Adafruit time trend of units sold and units/year estimate.
Wowzers!
Oh wow, I didn’t realize Adafruit started in 2005… I guess it was teeny tiny sales until things skyrocketed
I wish I can be one of them
But until shipping drops
I can't
45.97*4.5=206.865myr for shipping while the whole order is only 50.46myr
The shipping is 4x the order lol
How's my schematic so far?
Yea, I remember seeing things about Lady Ada at Makerfaires in NY. I think she might have spoken at a few of them.
Gods I miss Makerfaire in NYC 😦
They sounded like fun
Makerfaire? God yes. The first one I went to, 2012 (which I think was the 2nd one there) they had Arc Attack playing. It was such a great time!
does anyone know when the Raspberry Pi Zero 2 W is gonna be back in stock
Yes, but the being only speaks in riddles.
Soon ™️
Anyone with knowledge of the electrician arts? I'm looking to have someone add an outlet inside this closet but I don't know how complex a job that is.
whats to the left of that closet, from this orientation? is it a room, and does that room have an outlet on the wall that touches the closet?
If so, it wouldn't be overly hard. If not, it'd be a bit of extra work.r
on hostinger and many of other similar webhost services, what does it mean one website or x websites? is it a limitation of how many pages can you inser, of how many domains can you add or what?
Usually 1 vs many websites refers to how many domains
Was there a change to the Adafruit site? I just tried to look something up and ANY page I go to redirects to the login page
Shop, forums, contact us…
Not forums or blog actually, but anything else
This is probably a pretty easy task, but there are some specifics to consider. I'm not an electrician but I've added lots of outlets to my house, and haven't started any fires. Yet.
There is a good chance there is an outlet somewhere on the other side of the wall, in a bedroom, bathroom etc. In that case, the solution could be as simple as cutting a little hole in the drywall for the new outlet and running new wiring from the existing outlet to the new outlet.
If there isn't a convenient nearby outlet, there could be easily accessible power lines nearby in the ceiling for lighting, or in the basement.
Another question is how much juice do you need that outlet to supply? If you're just running a light or something, you'll likely be able to attach that load to the existing circuit. But if you are running something high wattage like a big heater, you might need to put that outlet on it's own circuit.
Adding a new circuit would much more complicated, but attaching a new outlet to an existing circuit is something you could probably do yourself after reading a few guides. Just remember to always shut off the breaker for the circuit you are working on, and make sure any work you do is safely contained inside proper rated electrical boxes for fire safely!
probably a silly question, but if i change the pin names in pin.py, will that change the labels used when writing code?
Example, taking this:
D4 = pin.D4
D5 = pin.D5
D6 = pin.D6
and making it:
D4 = Pin(4)
D5 = Pin(5)
D6 = Pin(6)
would let me use 4 as opposed to D4 when writing code using pin 4?
Decided I wanted a library template to make arduino libraries. https://github.com/skerr92/arduino-library-template
no. 4 is not a valid variable name in python.
neat. just in case you haven't seen it - there's also the cookiecutter approach, used by circuitpython libraries.
yeah
Just the number 4 specifically? Or numbers? Because that's confusing, because in code you can use numbers, even the number 4, when defining what gpio pin is being used.
Again, sorry for the confusion, that's just confusing what you described
numbers in general
but also, any code wanting D4 is expecting a Pin object instance.
which is why something like
led_pin = board.D4
couldn't become
led_pin = 4
there's no way 4 could represent a Pin instance
even though led_pin = 4 is perfectly fine Python code
can you describe your motivation more? why are you wanting to do this?
If someone is coming from Arduino, I could definitely see how they would want or expected pin assignment to work the same way
Given that the gpio specific global methods can reference a lookup table to know that something like pinMode(4, INPUT) would be referencing pin 4 on a dev board
yep. arduino works differently. pins are just indices into a table.
I feel like you could probably make a wrapper that would work in a similar way
Well, not feel per say. You definitely could
Though that’s a lot of overhead code just to do something like Arduino
4 is a valid int
pin = {1: whatever.pin, ..........}
def Pin(pinno):
realpin = pin.get(pinno)
return realpin
Expecting pin is a list of pins obj
I'm using an Adafruit FT232H to add GPIO functionality to an ubuntu desktop. The Desktop runs OctoPrint for my 3D Printers. Most of the plugins for it use the BCM pinout naming for the Raspberry Pi GPIO. The FT232H doesn't have the numeric pin naming, and i'm just running into a few issues forking existing plugins for octoprint to make them work with the FT232H breakout board
are you able to relabel the pin names in the pin.py file at all?
The Rpi i had running octoprint died, and I had the computer sitting dormant. its n ot cheap or as easy to get rpi4's right now, so i figured i'd make do with what i had.
WE ARE LIVE! Desk of Ladyada - Happy New Year of the Rabbit & Feather RP2040 Fun https://youtu.be/CgCAnFG0nlI
This weekend at the Desk of Ladyada we worked on trying to replace and upgrade all of our 32u4 and M0 feather varieties with RP2040. This would make CircuitPython a better fit for these Feathers, especially ones like the RFM or WiFi series which could not fit the memory requirements into the SAMD21. SAMD51 would have been great but we're still h...
sorry, i forgot to mark that i was replying to you in my last message.
What you all think about mechanical keyboard buttons for homeassistant
okay im almost about to give up but.. i keep getting this error
No Python interpreter is selected. Please select a Python interpreter to enable features such as IntelliSense, linting, and debugging.
i tried downgrading and upgrading but nothing works
I've been thinking of doing the same
Keyboard button ALL the things
Pycharm?
sorry?
Python
Im using vscode
PythonCircuitry
Circuitry
coding on ESP32-s2 Feather adafruit
Found out there's NAND flash for the new M1 macs being sold from AliExpress, about $200 for 1tb, I wonder if this opens the door for cheaply upgrading storage
You'd need to desolder and solder BGA though, I wonder if you could solder on a socket type thing onto the PCB and then attach NAND flash that way without the need to solder
I’m also wondering if there’s any secret sauce Apple has to prevent you from doing that…
Like, needing to flash something to the NAND before it can be used in a particular system
I doubt there’s space for a socket, but you could cut a hole in the backplate, lol
I have an old 60% mechanical keyboard I have slowly been removing the key switches from for various projects. Outemu blacks. I totally agree with your sentiment here.
I’m not familiar with Outemu, are their blacks similar feel to Cherry’s?
They are a cherryMX clone. They feel very similar in activation weight and bottom out, they are just a tad loose when it comes to the actual stability of the switch mechanism.
I just pick and choose, some are looser, some are nice and tight. They are regarded as kinda middle ground for price to performance. Not quite as good as a gateron or kailh, but better than Razer.
some say they are better than kailh
I like value options
They are pretty decent, and come in most of the flavours.
We got that yesterday and last night. Golf ball sized clusters at times. I'm pumped. It's sledding day with the kiddo!!
I haven’t seen snow in ages and I’ve never seen it come down in giant clumps!
I'm in southern Ontario, about 2 hours east of Toronto. Snow has been pretty sparse here lately.
I'm in Philly, PA, and snow has been rare here... and when it comes down it's usually light anymore
Got a chromebook to use while traveling. Activated the linux vm on it. Got OpenSCAD, Inkscape, Prusaslicer (plus a bunch of other stuff) running. Surprisingly good performance.
OpenSCAD is quite the program. That one has a learning curve to the moon.
I use Fusion360 mainly though. Some of its workflows are convoluted and backwards in a logical sense. It's a love/hate relationship we have with each other.
Actually, thats why I'm aboot these parts. I'm working on getting an adafruot ft232h breakout board to play nice with octoprint. My rpi died, so i switched to an old desktop i had laying around. Ubuntu with octoprint, and no GPIO
I now have GPIO on the desktop. I have it playing nice with OctoPrint. I have a subplugin for plucontrol that i can use to turn an led on and off with the ft232h
i'm just figuring out how to port the rpi.gpio functions to circuitpythons digitalio
rpi's aren't cheap, and are not easy to get. noone else is working on getting GPIO on a standard computer to use with octoprint. So, why not
I started using OpenSCAD when I got involved with RepRap. The Darwin was designed mostly using it. Been hooked ever since.
I mainly use OpenSCAD for its scripts. I use it for making gears for various projects, and tie rod ends for Radio Control vehicles.
Herringbone Gears FTW!!
I have a sweet print in place herringbone 3:1 reduction planetary gearbox i designed for an RC crawler. It's almost silent.
You say "Herringbone", my brain says "Herobrine"
hahahaha
I'm trying to learn freecad but I don't think I have the attention span to do it, fusion360 is so much more intuitive and immediately productive
What is the weather in Houston for april
@ebon dew To stop blowing up cp-dev channel, but find out my curiosity, how do air plants grow naturally? Are they attached to other plants or something? Or is part of them still in the ground, even though they're not using that for nutrients or fluids?
The misting with a water bottle basically replicates the high humidity of a tropical environment. They get all the nutrients they need from moisture in the air.
The wind helps them propagate, so FL with hurricanes is a perfect environment for that. They flourish. I have maybe 50 on 3 large oak trees alone. They're not the exotic variety but they are talandsia's.
I didn't put them there, they just grow everywhere on their own. Most people don't even notice them.
until they bloom then they're easier to spot.
If you like talandsias then you'll also like bromeliads. They're very similiar except bromeliads grow on the ground. talandsias prefer being on tree branches.
Hmm. Good to know! Thanks! I'll see whether these die on my watch before trying more. 😄
bromeliads catch a lot of water though so if you're in a high mosquito prone area do not get bromeliads.
in FL we have adorably cute tree frogs that live inside the bromeliads, everywhere.
Ok that's amazing
Are they as loud as the tree frogs we get here?
Shrieking at each other from across the back yard
so it's a choice, do you want mosquitoes and tree frogs... because they'll give you both.
😂 That's almost a tough one.
yes, tree frogs are very high pitch
Except mosquitos carry so much crap now that avoiding them has gotten more important.
I do love tree frogs though.
i used to live near a canal that has tens of thousands of them. night time was a cacophony of sound.
Oi!
and mosquitoes too yes 😦 can't have one without the other unfortunately.
I grew up with spring peepers and so on, so there was always a cacophony of sound. Probably not as loud though.
Are they at least frog food?
yes, spiders too. frogs excellent beneficial creature and cute.
Agreed.
I like petting frogs
tree frogs can change color to blend in, not quite as well as a chameleon.
Yeah!
I wish to pet chameleon frogs
on a white wall a tree frog can turn kinda white even though normally they're almost a bright green.
Also when they're hanging out, they're super compact. Like, if you looked at them head to bum, horizontally, they would almost fit in a <> shape.
I've held frogs that lay out flat like jello and it's so weird
between anoles and tree frogs they help keep insect counts down. they're both allowed to roam inside my house if one gets inside.
Jiggly jumpers...
I love frogs and lizards, but if I found one in my house, fren would have to go outside [after some holding and headpats]
yes they flatten out pretty well, usually when they're sleeping.
Most bugs in my house... DELETE
Flies will be shot with a gel blaster
Spiders may be left, or relocated if in a bad spot
I'll leave a reasonable spider in the basement or garage. Because ugh other bugs.
But some rooms..... no bugs period.
Yes I realise spiders aren't bugs.
Basement spiders usually get to hang out, unless I'm afraid to smoosh them wherever they're hanging out
if you can catch them... we have huntsman spiders here. frogs eat them when they're small but when they grow up and get big predator becomes prey.
"bugs"
Uffff..... I remember "spiders" in Florida. No thank you.
There are little tiny fast spiders here that I'll just shoo to a better spot
Something the size of a tennis ball suddenly moves on the wall behind my monitor........... Noooooooope.
beeeeg spider
Maybe spoiler that in case anyone has phobias.
they're lightning fast. even on walls they can run so fast they turn into a blur.
can you spoiler a discord gif?
You can spoiler the URL at least
I thought you can spoiler messages, but hmm
i don't see a / command for spoilers
I don't think you can spoiler a GIF from a GIF keyboard or the GIF thing; if you upload a GIF as an attachment, titled SPOILER_[subject].gif it'll spoiler it
Ok, no worries, at least it's scrolled back at this point, I guess.
Text you do || before and after, images give an option to mark as spoiler
They should add GIF spoilers
Filing bugs or feature requests with Discord is a nightmare, if you're used to open source projects.
huntsman are so flat they'll go right under the front door, there's no keeping them out
Oooof.
Meanwhile the biggest spiders I see are smaller than a dime, lol
which is fine they hunt cockroaches and palmetto bugs so they're actually another beneficial creature
except when they catch a tree frog 😦
Oh also most succulents bloom in the same way talandsia and bromeliads do.
Aloe has the most beautiful blooms, like a 2ft stick that goes straight up then a cute little flower.
eeek a spider. my friendt worked with a guy afraid of spiders. One day he threw a giant plastic robot spider (hexabot basically) at him and he threw a hammer at the spider that then bounced and hit my friend and cut his hand open. karma. haha.
I have a cutting of a larger Lophophora williamsii from someone else. The larger one blooms regularly, little purple flowers. Mine needs to mature further before it will bloom.
Aloe blooms?!?! My allow plant never bloomed!
Here's a typical Aloe bloom.
Wow.
They come from deserts but when put in tropical environments with humidity they thrive.
I wish to see the purple flowers
I've had blooms as tall as 3 feet. They love the water vapor in the air.
I have pics somewhere, give me a minute to see if I can find them.
Here's a typical bromeliad flower in florida, these are the ones you'll find tree frogs in.
There's a lot of mother-in-law's tongue and vines I forget the name of in my house
those are considered an invasive species here, grow with tubers that look like carrots
They're easy to propagate and darn near impossible to kill. I can see the draw for using them as houseplants.
the only bromeliad i want is a pineapple.
those grow here naturally too. Just cut the top off, stick it in the ground, in 2 years you'll have 2 pineapples.
They do fine when we forget to water them for a month or so XD
pineapples grow pups
Or when a long piece gets snapped in half
Images puppies growing out of pineapples
most things in a tropical climate will not survive a winter farther north than Georgia typically.
imagines puppies growing from bananas too
yeah. eventually ill build a little heated greenhouse
yup i've grown bananas too
I can't find my pics. But this is the right idea. Except the one in my pics was more purple.
It's so cute!
and mango trees, starfruit trees, jamacian cherry, loquat, avocado, tangerine, lemon, lime.
I can imagine in purple
i hope i get some peaches next summer
I need to get my aeroponics lab in order...
then 2 hurricanes came and wrecked about 90% of my trees. 😦
Wait I found one of my pics! It's not as purple as it looks in person in the pic.
Little flower.
I want one!
growing fruit trees in FL takes so long that inevitably you might get a few seasons of fruit before a hurricane kills it.
ohh pretty
That's the original. My cutting has a while to go. They grow really slowly.
That one is 45 years old I think?
find a way to give it higher humidity, put it in an enclosure and spritz with water it'll grow bigger faster.
Duly noted. I might try to do that.
terrariums are a great idea for succulents
here, i just have to put it outside. i live in a terrarium. :/
I have a little Ikea one. Lid opens at the top, but if closed, it would probably hold humidity until you opened it again.
Hahaha. We do not.
There is 2 inches of snow on the ground in my yard right now.
It was snowing here earlier and has been under 50F for a while
oh dear lord. definitely not good succulent weather.
39F right now here
it's 70F here
can snow fall in clumps?
Apparently!
woah
They were like 2-4” wide!
very pretty. i never get to see stuff like that. i live in a world of persistent green.
The majority of persistent green here is evergreens.
Same
snow falls in herds here
Does it moo?
no, but it makes the road, driveway, garden, porch all one uniform level
it's kinda like living far north where the sun doesn't set. has the same kind of psychological effect when the seasons don't really change. feels like groundhog day when everything always looks pretty much the same in winter vs summer.
no shadow for phil this year then
mostly above 0c
part of my succulent collection
Those flowers are lovely!
Awwwwwww
theres my trees...
gardening is done by zones, i visited family in another state and had no idea what any plant was.
i'm in zone 10a/10b depending on the weather. anything outside of that and i'm clueless.
not everything on twitter is bad 😛
It should not be hard to program seeed studio esp32 c3 via a serial connection with circuitpython right?
you'll want to use an editor like thonny to do it
it won't show up as a CIRCUITPY drive
so the repl is used in raw repl mode to write files
So when I save to board
It does that?
No hid support for esp right?
No USB HID support
its basically a usb to serial and jtag converter internally
it can't do generic usb
Wait so it's a preprogrammed USB chip
its limited hardware
making it generic takes more space in the chip itself
so its USB functions are fixed to save space
does adafruit sell BGA projects, duckduckgo pulls up nothing
Context of BGA projects?
cpus
I have never seen anything BGA from adafruit except as part of a board. BGA soldering is fairly advanced stuff
yeah ladyada has mentioned in multiple videos that she likes to avoid BGAs in her designs, so it would be surprising to have Adafruit sell kits that require BGA soldering
Yeah, which is understandable. She mentioned there was a few things she had to redesign with the BGA part to keep producing a board. I don’t remember which products though
Does anyone know if anyone makes a raspberry pi 4 case that holds a Samsung T7 external SSD?
I seem to remember seeing one, brushed aluminum too.
Its built into the uC, not an external chip, but its limited to USB-CDC and JTAG.
STC(the company that made 32-bits 8051) are working on a line up of Cortex-M33 MCU called STC33 series
Which are based on ARM-v8
STC32 are 32-bits 8051, and STC33 are ARM
Wow! Congrats on 3,000,000 orders Well deserved for a great company!!!
Does anyone here work with ESP32 and MicroPython? 🐍
button dog, dog with the button on 'em
O_o
Would anyone like to help me test my new open-source tool with a CircuitPython board to see if the REPL and commands work or not?
https://github.com/jczic/ESP32-MPY-Jama
You can run it from source and it works on Mac/Win/Linux (Mac [arm64/Intel] & Win binaries).
Feel free to tell me your tests/returns in pv. 👍🏻
Thanks!
Does it works with non esp32
It is mainly designed for the esp32 but I would like to make it work on other chips in the future. The commands and the REPL may work with CircuitPython.
Magnetism is hard to visualize
What the heck is this, honestly
It's so unlike anything I could've expected
Like, the nitty gritty field math of it
Gotta love Smith's Chart, but hate the exercises where I had to use it :P
I have to take my fridge apart this weekend :/ Its gonna be fun diagnosing something I dont know much about 😅
I was going to call a repairperson but after watching some videos, I think I understand how to fix it
Its still cooling-so I dont have to mess with HVAC stuff. That tells me its something else. Im hoping its as simple as a blocked vent
Make sure do it outside and have a air blaster
Im only one person haha. I do have a wet/dry vac
I mean you don't want dust all over your home right?
Oh, I already cleaned the coils if thats what you are getting at.
Great
Just don't break any pcbs or you will be left with no fridge
My son is about to turn 13, and his mother and I have decided to let him see a curated selection of R rated movies (but only the best). I’m okay with language and violence, but not necessarily drug use or sexual violence. My first two selections would be Alien/Aliens, and The Matrix. What else should be in our top 10??
2001 Space odyssey
Hmmmm I think Fargo passes that filter. There's discussion of adult stuff tho.
But it's a bit dark, depends on the 13 year old.
good morning vietnam
The Matrix is a good choice. It's a true classic of the late 90s/early 2000s. I think there's even a shot of the towers at one point
I’d like to say tropic thunder because it highlights some good modern social issues. But I don’t know if it passes all the requirements
If you're not on Nebula, you should get a month, just to watch Lindsay Ellis' essay on Tropic Thunder.
It’s interesting that I didn’t understand the significance of RDJ’s character until years later.
Like, the last 3-4 years is when I realized what his character in the show was supposed to say
I gained a new respect for the movie outside of it being pretty funny
Bah, Tencent Video's adaptation of The Three Body Problem is not enabled for streaming here. Seems to be OK for the US though.
man .. Python is challenging to learn for me but i think of it as a game
idk if im thinking the right way in terms of learning but I am having fun
That's a good approach. If you can find something which looks like work to most people but looks like fun to you, then you've found an exploit in the game of life that you can build a career out of. 😁
I'm looking for help connecting this to a ESP32 Feather? Which channel is the best for that? https://learn.adafruit.com/096-mini-color-oled
It’s an SPI display, so Sclk>SCK, data>MOSI, and DC CS RST go to digital pins as defined in your software.
So I need to define in the software which pins are for DC, CS and RST?
I believe so, I know u8g2 asks for those pins in their constructor, I believe other libraries have something similar
It's out
I vote for Dogma.
@bitter viper I am happy that you are doing this! Too often I hear of filters being 'all or nothing'.
They've also made a new revision of their pico-powered USB DAC board. Looks much nicer than the old one.
Thanks everybody for the ideas!
does exist anything like ros that has an easy installation on windows and isn't heavy as nvidia or unity integrations?
I can run it through an ubuntu vm, but the result is that's slow
Okay, guys, I am moving towards production with my product and I need somebody to finish my box which needs to be done delicately because it is made round and beautiful both with cups and other parts. Can somebody in here (who has done something like that) guide me through it? 🙂
“moving towards production”
“delicately… made with cups and other parts”
I believe there’s some conflicting information here that’s making this more confusing than it should be. Are you looking for how to design an enclosure for manufacturability, looking to package a fairly delicate product, or something else entirely?
Actually, I am finding a cheap CNC plastic maker where I give them the design and they will create a 100 pieces for it 🙂
well-priceed
in normal situation, it would cost me a massive amount of money 🙂
It’s probably a good idea to look into design for manufacturing, as different production processes will incur costs for different types of operations. 100 pieces is far too few for many industrial processes, so my first thought would have been looking into 3d printing to start. Depending on whether your parts are being made with 3d printing, cnc machining, or injection molding, different optimizations can be made to a design to reduce cost.
First time discorder... Been doing Arduino a long time, now new to CircuitPython the last few months and loving it. Just want to say I love LadyAda's designs (been a customer 10 years, starting way back w/ Ard stuff) and now new Feathers, etc all over the place to mess with. My only issue (ha ha): at times I wish The Lady would not keep coming up with new COOL things (boards or displays), because, of course, I MUST have one... (Well, really, I hope she keeps it up!)
Dose anyone know what the orange blinking light on the Ds xl mean?
If I have a complaint about my mail carrier, do I call a national number or my local office?
USPS
Usually you start at the local level
Thanks. They are leaving stuff at my door that should go in a locker. Also a package they left by my door went missing (or wasn't delivered) which has never happened before in 6 years of living here.
If there is even a way to contact a local office. I've found in several cases that they don't have a way to contact local anything, and force you to use their national customer service, and make it extremely difficult to address specific issues like you're having. Good luck with this. I hope it goes smoothly.
Local post offices should have a contact number. You just have to ask for the post master. You can also file complaints against local couriers through the USPS website and the local post master has to call you if you’ve filed a complaint.
@lusty fossil I completely misread it as UPS. Ignore most of what I said. The part about it being extremely difficult to address specific issues still stands. And the good luck. But the rest of it is irrelevant, as far as I know.
Thanks for the correction, @tardy badger
Yeah, UPS is hard
FedEx, even worse
DHL is marginally better
Amazon fires drivers with more than 5 complaints over a period of time
I don't want to make this person's work life hard, I just want my stuff to not go missing
It's not always their fault
They are Karen stealing package too
If it’s a missing package, there is a form specific to reporting that
They can tell you if the geotag for the package scan happened at your address
What about they put it at my guard house and a Karen steal it
What should I do
I had a package delivered to a neighbor that didn’t speak hardly any English. I felt bad for them because they felt like it was an issue that the package was delivered to them when it was my mom who made the mistake
Provide camera footage if you have any of the guardhouse
Provide it to the police
Usually they have case files for porch pirates
Now the worse of the worse
Package throwing
How will you react to this
If theft is over a certain limit over time and they positively identify people, they can file a criminal complaint against the person and arrest them
Package throwing is definitely want something done
Especially if I ordered something expensive and it broke from them throwing the package
I was just told to take it up with the shipper for any insurance.
Companies shipping expensive stuff usually get insurance in cases where an item isn’t received or damaged in transit
i sent something without insurance once to NL and it never made it - or so the guy claimed.
i refuse to send anything without insurance now
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probably not. Both powerboosts look to be out of stock
also hello fellow philosopher 👋
Seneca was a stoic
Lucius Annaeus Seneca the Younger (; c. 4 BC – 65 AD), usually known mononymously as Seneca, was a Stoic philosopher of Ancient Rome, a statesman, dramatist, and, in one work, satirist, from the post-Augustan age of Latin literature.
Seneca was born in Córdoba in Hispania, and raised in Rome, where he was trained in rhetoric and philosophy. His ...
seneca is a school in toronto 😛
no, but I love the limited edition Nintendo DSI XL (i have one as well)
🙂
Ya and surprisingly i actually fixed it. I’m not sure how because people say it’s the fuse that’s not working. But when I just removed the battery and that small board that is connected to the battery then put it together again it suddenly worked and charging again. I don’t know how but I’m happy
would anyone who has knowledge along these lines know if you'd be able to use periphery to access gpio on adafruit boards, like the FT232H USB Breakout Board?
I've been playing with an FT232H on a desktop with ubuntu. It runs my octoprint server for my 3d printer. I have a plugin working using adafruit-blinka/circuitpython/digitalio, but it would be alot easier to write plugins for octoprint using periphery. Just as some background info why I'm asking. Thanks in advance for any information from anyone.
Are there any sort of radio frequency "cameras"? Like how thermal cameras collect IR and convert it to something we can see?
Would be handy to be able to visualize the opacity and transparency and emissions of radio frequencies to see if, say, your WiFi signal is being reflected or absorbed by walls...
This sort of exists in "4D" radars, but it's pretty complicated and the resolution is poor. The main problem is that the wavelength of radio waves is very large, so you need a huge "lens" and a huge "image sensor" to take a picture with them, versus the tiny wavelengths of visible light.
Makes sense... I guess it just gets worse the lower the frequency
Big and bulky but like 32x32 pixels would still be useful, lol
Cognitive function = 0, will somebody help me pull through this clarity fog? I need to finish the hardware simultaneously with the guy I gave the assignment to as to prove my capabilities to.
so i have a circuit which is rather complicated
but I need to make an easy output
And those are my 2 problems
In your first pic potentiometer is usually logarithmic in nature, if you want even steps of 5 from 0-100 then you want a linear potentionmeter
or a rheostat
or possibly use a rotary encoder
@shadow siren thank you a lot! 🙂
Selector switch is also an option, if you can find a 24-position…
Second picture doesn’t seem like a problem, it just looks like a dc cable splitter, but having male-to-male barrel jacks seems like a terrible design decision.
Folks with Vesa wall mount monitors, what mounting arm brand did you use?
Is there a reason I can't find a single used 1054Z on ebay
I was gonna link one but it got blocked
Chief is the best for big things that you might move a lot, but anything rated for the weight of your display will likely work -- just be sure to know if you want it to tilt or have access for servicing. Super flush mounts are hard to work on
The bot hates me DX
It hates everyone
Hence why it’s a bot 🫣
It’s a bot done with everyone
Thanks. Mount in studs?
Discord def needs more mountain studs.
Always, the only exception is with really stout stuff you want to mount 3/4" plywood across several studs 3+ and anchor to that ( plywood and backing board together ), don't believe plastic anchor salesmen
( I've worked in ProAV for more than a decade and seen some weird stuff )
It looks like you need to be a company to buy chief mounts?
They're on Amazon - https://www.amazon.com/Chief-LTM1U-Panel-Hardware-Mount/dp/B00V2UBY2K/ref=sr_1_6?crid=EM7E6G95WIB3&keywords=chief+mount&qid=1674764206&sprefix=chief+mount%2Caps%2C96&sr=8-6
I need to make a vesa mount for my 4k ultra wide bedside monitor
Think I'll also want to run the thunderbolt and power cables inside an arm
Thanks!
Anyone mind trying to download this? https://www.digikey.com/en/models/2366051
for fusion
Apologies. We're still evolving our banned word lists. I removed the word you mentioned in your second message from the wildcard list, hopefully you can post that phrase again. The bit that blocked the URL I am not comfortable removing.
Thank you for your patience with us.
Ever evolving! I’ll try it tomorrow because I forgot what I said and that was on the computer I left at work, lol
For wall mounts we use Vivo and Peerless
If your looking for very strong wall anchors
TOGGLER SNAPTOGGLE Drywall Anchor with included bolts for 1/4-20 Fastener size; holds 80 pounds each by TOGGLER
What is the proper way to split ac power from an IEC-C13 receptacle to multiple psus?
I only have one set of connectors on the c13
whats your procedure for cleaning solder dust/flakes? Vacuum cleaner?I keep finding sparkly particles of solder
hope you have strong drywall, lol
i've seen things like that used for mounting into a metal stud, and using it for drywall makes sense, but for my apartment's questionable drywall, that (and toggle bolts) would probably rip it up
plastic pop toggles hold a similar load but are softer (and have more contact surface area) on the drywall, gentle on the ol' apartment
does anyone know a cloud realtime database that can be used for testing, other than firebase
i would delight to hear about this if you're up for sharing
Adafruit you should have a QR code to the shop or learn page for each item in the packing list/receipt, that would be really convenient when I want to look up the specs on what I bought (or what got added for free)
Mongodb
If you use mongodb altas
Its data api
Hello just wanted to know if that product will be selled ? : https://blog.adafruit.com/2020/08/18/flexible-6-oled-display/
anyone remembers the title of the eevblog video about an ac power suply for standy power?
Those are much stronger when used with metal studs, for sure. Great for solidly sticking something to the drywall/plaster ( and I have used them in combination with lag bolts, or some in metal studs, some not ) but drywall isn't very strong. Ask a 16-year-old with anger management issues.
catch me online and I'm happy to hop into an audio channel!
Are there any plans for CP to support the Matter protocol?. I think the hardware is already in many Adafruit boards, correct?. I asked the question some months ago and there were no developments at the time.
miniature gaming monitor
the set up a little desk for a hamster
its january. kids will be bored of the ones they got for xmas by now
Lol
Has anyone ever used synchronous motors?
I have a bunch of 28BYJ steppers but for this particular project, they would have too much play/backlash
Are synchronous motors much better?
Display soldered. Realizing I need to shift some parts so the connector sits flush
Yes
I think time would run faster when the day is shorter, not just be shifted?
Maybe I’m figuring wrong
I think some sun dials had markings for equinox and solstice sun angle changes
Yeah, that appears to be the case
Sundials also work with artificial sun. Just y'know the time is artificial too.
no. sundials show local solar time. standard (or daylight saving) time are based on the mean sun, which is often ahead or behind of the true sun (even when corrected for longitude)
@glossy girder You can get the flexible ones from Waveshare but they're only in HDMI or MicroHDMI. Nothing exists like that for SPI or I2C to my knowledge, certainly not in such a large size. Generally, currently anything over 4" requires a separate driver co-processor/buffer chip, you can't drive a display that large from a microcontroller by itself, just too many pixels. You can use a SBC (single board computer) like a Raspberry Pi with it though. That blog post is from 2020 and I don't think Adafruit ever started carrying them. You can inquire/request Adafruit stock any product by using the feedback form on Adafruit.com.
Now that the Pico has kind of provided a way to get to DVI/HDMI from a microcontroller it's possible we'll see some HDMI ports on microcontrollers in the future.
I got a bunch of these in too! 128x32 or something like that? Then I got some of the 0.49" OLED screens "just because"
I had an idea to make an ultra small temp sensor that could be powered from a coin cell
I’m going to make a little BFF board
It’ll be slightly bigger than the QTPY and barely fit between the headers lol
and design done. I thought about adding mounting holes so this could be panel mounted or something
as you can see though, the TFT just barely fits between the pins.
if Ladyada adopted this, i would squeal
even something remotely similar would be cool
I want
I'm thinking about carrying some on my tindie shop
I made one of the first BFFs for the QtPy 🙂
A Cute Stackable LiPo Battery Backpack for your QtPy & Seeed Studio Xiao!
For the sundial question above: https://i.imgflip.com/3f319q.jpg
on the nOOds (e.g. https://www.adafruit.com/product/5503), the product description and guide are conflicting each other...
product description
we recommend current limiting with a resistor to let max 50mA through.
guide:
An inline current-limiting resistor is recommended. Try around 50 Ohms if the supply voltage is close to 3V, and 220Ω around 5V.
given a turn on voltage of say 2V, the current in the 3V case would be 20mA, and ~14mA in the 5V case
not sure which is supposed to be the recommendation
would making a pyportal phone be possible by using the adafruit fono?
I don't see why not
for cheap crap boxes/enclusere what can you use? custom manufacturing it's expensive even with resin or sheet manufacturing, molds it's not on budget, prefabricated boxes are ugly and a pain if you need extra holes
Cardboard?
JLCPCB does 3D printing, have you checked out their service?
yes too expensive, 30 euros for a box
How large is the box?
10x15cm
Cheap 3D printer and make them yourself? The print costs are really low after the printer
Ah yeah, that’s going to be expensive to print
You’d use like 600g if filament more than likely
I mean I was doing like a theorical bom for production, if it's for me cardboard is fine
I like cardboard
Balsam wood?
I also use old food containers
Recycled wood?
Oh yeah, old food containers are a great option
Or just go to the store and buy a new one cheaper than 30€
Do you have any thrift shops near you?
for diy they all work fine I think? but for production I don't think so? unless I don't include the boxes for "being more enviromental friendly" and also save cost on shipping/weight lol
For "temporariiy" mounting some TFT's (they have holes) so they are not laying on the table (EYESPI CONNECTORS), I folded a small slab of cardboard in half, taped the bottoms together so it's a triangle, punched 2 holes thru for zipties that line up w/ the TFT, and secured. Cheap (I'm cheap) man's 45 degree Custom TFT Display Holder.
What all bots r there in this server?
I think just MEE6?
R there any electrical engineering related bots
Not that I’m aware of, just a lot of electrical engineers
The downside of running a business is even after you’ve shut the business down and dissolved it, and then notified the state workforce services that the company was dissolved, they still send you mail and then make assumptions that you have employees and demand you pay.
My dad's business was closed like 10 years ago and we're CONSTANTLY getting mail
I just dislike how states go grabbing for money when they could access their own records and see that a business was dissolved and isn’t active anymore
Government be dumb sometimes
More than sometimes but that discussion isn’t allowed here
My head hurts too much for such discussion anyway
gov is just a bigger mafia
Anyway, I’m gonna have to call again and tell them that the company is dissolved, is inactive, doesn’t exist even with a website so there is no way I have employees to pay taxes on.
I don’t even live in Wyoming anymore
Haven’t for going on 7 years now.
Wow, they're persistent
It’s at least once a year it seems like
I closed my business here in Utah early last year and I haven’t been harassed about taxes. I was able to close the tax account online after paying collected sales tax
Sounds like a Wyoming weirdness
Breathing fee
The state government here is fond of sending bills, with the basic message "pay this or convince us why you shouldn't have to"
North Carolina will probably nab part of my federal return because I have no idea what my owed taxes are right now and there’s no convenient way to look it up..
And I owe them taxes because my employer didn’t pay them
Back in 2021
To be fair, I haven’t made enough money to even make payments so there’s that too.
Anyone have a suggestion for a good, free, open source alternative to Blynk?
Biiiig order! :D
It depends on which features of Blynk you're looking for. For some things, AdaFruit's Bluefruit LE Connect app is sufficient.
@late fulcrum I'm building an MVP that will be customer facing during testing. I'd like to end up with a app that looks like my own. Will Bluefruit allow that?
Also, I need to support about 100 devices, each with their own unique ids
Most of Blynk is concerned with connecting through their service and supporting Bluetooth. If you don't need either of those, it's not that difficult to roll your own.
I'd like to use Bluetooth if possible. Does adafruits product allow that?
AdaFruit's app does support Bluetooth, but not the sort of customization you're looking for. However, since Bluetooth is the hard part, it might be a useful starting point.
is adafruits product free and open?
In general, Adafruit products are open source. "If it's an Adafruit project and it's not open source, it will be soon"
I think a teeny tiny handful [probably deprecated by now] have closed-source bits, but that's really rare
Probably
Unfortunately I'm not familiar with Blynk, so I'm not able to make suggestions
ty