general-chat

[quartz marsh]

Thank you!

You mean, coolest-looking 🤣 There is two linear regulators there that have about 40% efficiency, and I didn't realise why this would be an issue until I noticed the bottom of my robot acting as a free hand-warmer

[jagged citrus]

Yes

Genuinely great design

[quartz marsh]

Thanks so much 🙂 can't go wrong with purple soldermask and HASL (lead-free, of course) finish

I will admit though, the layout on that one was pretty awesome

[jagged citrus]

True, purple boards are always the coolest ones

[quartz marsh]

Either that, or black and ENIG

[stoic mesa]

nice.
haven't used this one yet.
do you program the whole thing in Python or Arduino IDE?

[jagged citrus]

Matte black premium finish

[quartz marsh]

Ooh yeah that would be cool, haven't tried it out yet though

[quartz marsh]

Arduino IDE. I've heard that Python limits something like an ESP32-S3 down to laughable speeds, but I'm not exactly sure. I kind of 'grew up' with Arduino though, so it made sense for me to either use that, or go straight to ESP-IDF (something I also haven't tried out yet)

[stoic mesa]

my robot has a master MCU that is programmed in Python and a secondary MCU that takes care of low-level operations such as PID control of motors and is programmed in Arduino.
this way, I have best of both worlds

[jagged citrus]

Circuitpython seems a bit iffy on the S3, i had many issues with wifi

[quartz marsh]

Which MCUs?

[stoic mesa]

master is esp32-s3 (I use Adafruit feather), slave is samd21

[quartz marsh]

Interesting...

[quartz marsh]

Oh, that's cool

Have you noticed any benefits of circuitpython vs Arduino?

Is uploading quicker or anything like that?

[stoic mesa]

if you are interested, here is my bot:
https://yozh.readthedocs.io

main reason I chose python (micropython , not circuit python) is educational: my bot is to be used for teaching kids

[quartz marsh]

Wow, very nice!

[jagged citrus]

I prefer circuitpython for simpler things or projects that use SD card storage since i like how circuitpython handles it, for projects with displays or wifi i use arduino and PlattformIO

[quartz marsh]

Cool

You know, I've been kind of drifting away from ESP32 recently, and more inclined to start messing around with Linux SBCs...

[jagged citrus]

Have you looked into new boards like the Milk-v and luckfox pico?

[quartz marsh]

Or STM32, but the performance benefits on STM32 are not incredibly much

[quartz marsh]

Yes, I've bought the luckfox pico and did some minor testing on it

The main thing is, I want to start using BGAs in my designs

Just to see, since that's the next step

[stoic mesa]

but then you certainly need a secondary MCU. You can't do anything that requires tight timing, like reading motor encoders, on a SBC

[quartz marsh]

Thanks for letting me know, I wasn't aware of these sorts of things

I thought since the processor would be much faster, it would be able to handle such things

But, I guess it makes sense

Speaking of which, @stoic mesa , have you ever made a balanced multi-cell LiPo charger, as in, for things like in your robot?

Or, is it like if you put 2 cells in the Yozh they just get paralleled?

[stoic mesa]

I use parallel.

[quartz marsh]

Fair enough

Just finished making a footprint for a half-bridge motor driver because it's so new the KiCad footprint isn't even there

[stoic mesa]

which one?

[quartz marsh]

DRV8145-Q1

[stoic mesa]

do you really need currents over 10A? what motors do you use?

[quartz marsh]

Lol I'm going to make a BLDC ESC from scratch

(Try to)

With FOC

(Maybe)

(If it works)

[stoic mesa]

🙂

[quartz marsh]

I have no idea though honestly

Seems like I can just throw 3 of those together and some sort of back EMF system

Anyways

Been nice chatting with you guys

Goodnight (I'm in Australia lol)

[jagged citrus]

See ya

[patent hemlock]

wow

[round minnow]

Is the source for the firmware available? I'm interested in options like that for a robot I am tinkering with. Protocols and implementation to use for the lower level 'nervous system'.

[stoic mesa]

yes, see https://github.com/shurik179/yozh
It can use soem work, obviously, but it works.

[hard halo]

dude, dictator Maduro invited Elon Musk to a personal fight and he accepted 😂

I am laughing since yesterday

According to Maduro, Elon ( with Bolsonaro and Milei ) will send missiles to Venezuela

https://x.com/elonmusk/status/1818845968890019936 (see the memes!!!)

Elon Musk (@elonmusk) on X

I’m coming for you Maduro! 🚀💣

I will carry you to Gitmo on a donkey 🫏

Twitter · Aug 1, 2024, 3:07 AM

[round minnow]

If my browsing of the code is accurate, firmware controls servo postion, motor speed and acceleration based on settings from the brain via I2C. Firmware reads (enabled) sensors and populates a buffer (registers) that the brain can read via I2C.

In the described scenario, the firmware is not being touched. Only accessed from the brain using I2C in circuitpython or micropython. That firmware could benefit with some refactoring, to move blocks of code into functions. That would simplify the setup and loop logic. It does not look like that firmware is very large. It should not be pushing the limits of the target device. More advanced students could add additional logic to the firmware.

[stoic mesa]

yes, that is correct. I'd also add that the firmware also reads IMU and does data fusion, providing easy to use roll/pitch/yaw angles to master MCU.

And certainly, some refactoring coudl be useful.
If you are willing to help, let's talk!

[round minnow]

(initial) refactoring of the code would be easy, but I do not have the hardware needed to test it.
I grouped the IMU with sensor reading. I had not noticed the sensor fusion logic. Did not look at the imu.cpp code.

[rancid bloom]

just noticed the captcha at the bottom Adafruit blog pages... clever and educational! Love it.

[glad ruin]

Oh Maduro is insane. I can't find it because youtube search only gives me stuff from the last two days, but there are some hilarious clips of him trying to english.

[hard halo]

I miss Harry Truman, Dwight Eisenhower, Lyndon Johnson, Richard Nixon, J. F. Kennedy, Ronald Reagan, Gerald Ford they would not allow communism ditactors like him in all America south to north.

[glad ruin]

They all had their fair share of issues, but let's not get into that.

I think it is fair to say that there is no such thing as a "friendly" dictator, communist or otherwise.

[solar kindle]

All the STL models and instructions in case anyone wants to try it out. And, y'know, do any coding improvements.
https://www.printables.com/model/960905-bluetooth-membrane-keyboard-65-style

[fleet rampart]

just made and ordered this tonight

[jagged citrus]

There is no such thing as a good dictator, all of them are terrible, maduro is just like how pinochet was during the 1973 dictatorship here in chile.
Same thing, different coat of paint

Thats probably the most political thing ill say in this server, aside from me thinking that burger king is better than mcdonalds but that would get way too heated very quickly

[patent hemlock]

yeah, you'd definitely be in for a grilling

[twilit pawn]

Hey all!

I've been referred here since I asked a similar question in a different tech-related discord.

I kind of want to start out on breadboards and prototyping, but I can't really find a decent store to get supplies. I live in the Netherlands, and might be quite limited in which shops are available.
I did find mouser, but it seems like it's way over the top for what I need and want.
I kind of want to start out with a few things Ben Eater on youtube was showing, and even though I do want to support the guy, it's just not feasable to do that through his webshop given it'll take additional transport costs, and import costs and such.

So my question here is for advice for EU-based (preferably even NL based) shops I can visit (web or physical) to start looking around for materials, tools, and other supplies to start out.

If I need to move this question to one of the #help channels, I'd be happy to 😁
Thanks in advance

[jagged citrus]

Good one

[solar kindle]

So, you ally yourself with the royal elite rather than good, hard-working farmers? 😜

[jagged citrus]

BK tastes better

Big mac more like mid mac

[stoic mesa]

Mouser has European division: https://eu.mouser.com/
But mouser is huge - tens of millions of components - so you need to know what you are looking for.

For parts for hobby makers, check Pimoroni (UK)

and for cheap generic things, Amazon and AliExpress are also an option (when used carefully)

[twilit pawn]

Thanks! That helps!
it seems like a decent retailer for a lot of supplies, though not all. But that's fine, it's a decent start!

[stoic mesa]

there is also https://lectronz.com/
where small independent makers sell their own creations (like Tindie in the US).
That's more of a niche thing, but occasionally you find something cool there.

[twilit pawn]

Yea I saw a retailer in the US that sold a kit I wanted, but since buying from there was an incredibly high shipping cost, and import costs, it would be cheaper and faster to get it locally(ish)

[patent hemlock]

if you're just starting, i would highly recommend looking at those "getting started in electronics" kits as they supply all the also the parts and instructions for what i would consider a mostly reasonable introduction to general electronics usage

[dusty citrus]

Don't go through distributors they're expensive af for hobbists. In the eu the cheaper option is AliExpress, you get whole boards cheaper than the main ic from distributors

[twilit pawn]

Sadly the Ali Express things are bad quality in a lot of ways 😅 especially the breadboards.
Plus I never use ali express for the very simple reason that it is not a safe website to leave any personal information on. Same as wish and temu.

[rancid bloom]

I didnt know why I purchased a roll of conductive tape years ago. Thank you for showing me the light. :awesome:

[dusty citrus]

I'm not going to convince you, but well you're wrong, I never had any problem with it, it's just like the Chinese ebay that ships outsea.
If you really want to go through distributors, lcsc is cheaper

Wish and temu are more recent, mostly overexpensive dropshipped garbage sold through heavy marketing

You just need to be carefull with active components like stm, there are lots of clones, which not all of them are bad either.
AliExpress is mostly gray market, but there's paypal, and alipay

[twilit pawn]

I mean you might be right, but the times I had to fix data leaks that happened through Ali Express, as well as the dropshipped garbage just made me never share any information there.
Granted I might be a bit overparanoid for Ali Express, Ebay, Wish, Temu, and all those other "We sell everything dropshipped"
There might be 1 or 2 I sort of trust, but only for things that don't really matter 😅

Regardless, I did check out the breadboards on ali express, and they are all garbage quality, so I'm not even going to check for a 65C02, or a 555-timer on there 😅

[stoic mesa]

for components, LCSC is somehwat cheaper than Mouser, and it is mostly reliable (certainly more so than AliExpress). Their parametric search sucks, though, and shipping takes some time unless you are willing to pay extra for fast shipping.

[twilit pawn]

is it EU-based tho?

[dusty citrus]

CN

There's no point to buy locally unless you have like a gold mine or have a business

Otherwise there's stuff like octoparts for distributors pricing
Digikey ships for free for orders over 50€, at least in italy, nl idk

[twilit pawn]

thanks! I'll have a look into DigiKey I guess 😅
I bet sourcing locally is going to be a huge pain. Thanks for the advices allround tho

[somber spindle]

Check out TME or Farnell (UK)

https://nl.farnell.com/

[cloud pilot]

Why does my DPDT switch not turn on the board unless I switch it on, then off, then on again???

[cloud pilot]

Here are my connections to the feather m0 express

[late fulcrum]

Looks like you're trying to switch both power and enable?

[trail bridge]

anyone know what specific port of gnu boy and nofrendo were used in the QT Py emulation yt vids (https://www.youtube.com/watch?v=uo2TKCRYRoo, https://www.youtube.com/watch?v=uF6tlsejnhw)

For the nofrendo one, I found https://github.com/adafruit/nofrendo_arcada, but that is specific for the arcada hardware. I wanted to be able to customize it for custom hardware (I can provide my own tft support (ideally with an adafruit gfx object) and my own input logic etc)

[cloud pilot]

I thought enable was to turn off the feather? I could be wrong though

[solar kindle]

I first tried conductive ink but the foil tape turned out to be much more reliable. I even used it to re-do a little 3×2 keypad I have attached to my laptop for special characters that I use a lot.

[rancid bloom]

Thats amazing! I gotta figure out where I stored that roll… 😏

[thick wind]

Connecting enable to ground disables the 3.3v regulator.

[rancid bloom]

How much pressure does it take? And how much math do you do that you need a pi key. 😅

[solar kindle]

It's a pretty light touch. Depends a lot on the type of filament you use and on the type of sticker paper.

[weary fiber]

having distinct buttons for em/en dashes is so cool

[late fulcrum]

My thinking is that you need either)or but not both but I could be missing something

[cloud pilot]

whys my feather m0 express saying i have 0 bytes free?

its fresh outta the box. wheneever i drop a uf2 into it, the feather does not change to circuitpy

[ebon dew]

To load circuit python the drive has to be in bootloader mode. The drive should show up as BOOTPY. You cannot drag a UF2 to the drive while in normal mode.

well you can but then the UF2 will just sit there doing nothing and will take up all the space as you're seeing.

[cloud pilot]

i did do that it still is acting up:(

[ebon dew]

while in bootloader mode when you drag the UF2 to it, it will load and the UF2 file will disappear. then you reset your device and the USB drive should show up as CIRCUITPY.

[cloud pilot]

i drag the UF2 when its in this mode, correct?

[ebon dew]

yes

[cloud pilot]

i did that but its not popping up as circuit py

[ebon dew]

after a hard reset?

[cloud pilot]

its really weird cause ive done this over 10 times and use the exact same files every time

https://circuitpython.org/board/feather_m0_express/

i tried using this uf2 as well but still doesnt work

how do i do a hard reset?

[ebon dew]

just hit the reset button once

that's a hard reset

a hard reset is always required after a UF2 update

i might have an m0 express i can test it on if you can't get it to work.

[cloud pilot]

gotcha, yea i tried that too :/ i did a hard reset, dragged my uf2 thats alwyas worked, dragged in the latest uf2, and it still doesnt bring up circuitpy

[ebon dew]

hmm i only have an m0 wifi not express

and the m0 wifi can't run circuit python anyway. :/

[cloud pilot]

this is what it looks like when i hit reset once

[ebon dew]

apparently i don't own an m0 express feather. :/

[cloud pilot]

this is what it looks like when i hit reset twice

[ebon dew]

ok what is the contents of info_uf2.txt while in featherboot?

[cloud pilot]

UF2 Bootloader v3.16.0 SFHWRO
Model: Feather M0 Express
Board-ID: SAMD21G18A-Feather-M0-Express-v0

[ebon dew]

ok the latest bootloader version is 3.7, can try updating the bootloader

at the bottom of this page you should see a link to download the bootloader https://learn.adafruit.com/adafruit-feather-m0-express-designed-for-circuit-python-circuitpython/uf2-bootloader-details

bootloader UF2 is different than a circuit python UF2

after you update the bootloader then try to update the circuit python uf2

[cloud pilot]

so ill drag update-bootloader-feather_m0_express-v3.7.0 into FEATHERBOOT and then this one?:

[ebon dew]

correct

ensure it updates by allowing windows to redetect the drive, it might take a few minutes.

you'll see some windows notifications about the drive being detected, usb, etc...

[cloud pilot]

okay so i did that, got the notification and now the drive disapeared, the neo pixel is blinking green every 5 seconds or so, should i just wait for it to pop up or hit reset ?

[ebon dew]

your info_uf2.txt should update to show it's on bootloader 3.7

hit reset once

it should then bring up the usb drive again. then go back into bootloader mode. confirm info_uf2.txt says bootloader 3.7. then drag over the circuit python uf2.

[cloud pilot]

T^T

the FEATHERBOOT now reads:

UF2 Bootloader v3.7.0 SFHWRO
Model: Feather M0 Express
Board-ID: SAMD21G18A-Feather-M0-Express-v0

but circuitpy is still not apearing

ive never had this happen before

[ebon dew]

and the usb drive still full?

[cloud pilot]

the USB driveH says 0 bytes

this is what featherboot says, but circuitpy isnt popping up for me to drop all my prop files and main code

[ebon dew]

in usb drive mode see if you can create the file code.py

if it auto executes then there might be a way to erase the file system though i don't know the exact syntax i'll have to look it up. danh is better at these kinds of instructions.

[cloud pilot]

yeah i was able to create a blank text document labeled code.py

[ebon dew]

does it execute though, can you open it with Mu? or however you normally use it?

try adding ```py
print("Hello World")

does it show up in device manager as a com port?

what are the contents of boot_out.txt? minus your UUID, don't need that just the circuit python version info.

[cloud pilot]

idk if i did this correct

[ebon dew]

hit ctrl+s again, you're looking in repl for the words Hello World

if the code is executing that's a good sign

[cloud pilot]

ive never had an issue like this before im so bamboozled. i have 2 folders in my PC where i just drag and drop and the props good to go

[ebon dew]

but i'm not seeing hello world in there

[cloud pilot]

wheneevr i hit ctrl s

[ebon dew]

ok replace hello world with ```py
erase_filesystem()

[cloud pilot]

i just plugged in another feather and it works as it should. is it possible that the wiring is messing something up???

I reeeeeeeaally don't want to resolder all this (⁠╥⁠﹏⁠╥⁠)

[ebon dew]

oh dear lord. there's no way for me to say either way. do you have anything wired to the UART pins?

[cloud pilot]

which pins are UART?

[ebon dew]

TX/RX

[cloud pilot]

Nope nothing connected to those

[ebon dew]

I encounted an issue on the M4 express when using some combination of pins it deleted everything. it's a failsafe that sometimes happens but reloading the UF2 should work.

[cloud pilot]

I have literally made like 10 of these things idk why this one's acting up

[ebon dew]

ok you'll need to get help on this issue in the #help-with-circuitpython channel. there's something going on there that I'm not understanding.

[cloud pilot]

I e done it so many times

I'll try, thanks so much for the rapid responses and effort

[ebon dew]

Also you're running a beta version of Mu. You can upgrade to 1.2.0 and all the weird snake text at the top of the repl will be cleaned up. That's something they've since fixed.

[cloud pilot]

nice! good to know thanks

i think imma have to unfortunately unsolder everything... but i quadruple checked everything. everything is good but its still being weird

[ebon dew]

😦 Looks like you're trying to stuff it into a small enclosure otherwise I would recommend prototyping with headers and jumpers to make your life easier.

Unsoldering an entire project is never fun. Just the way it is sometimes. Do what you gotta do.

[ebon dew]

Something like a feather doubler will allow you to prototype easier while keeping it in a smallish form factor. https://www.adafruit.com/product/2890

Though you've said you've built 10 of whatever you're working on... there has to be something going on that's different that you just haven't caught yet... or there's a weird problem with the board that needs to be nuked and reset but I don't think a nuke UF2 exists for the SAMD21.

[cloud pilot]

i just desoldered ALL the wires and its still the same

before i flashed it and everything, it did have the stock function of changing the neopixel colors when turned on

[round minnow]

Did you try the file system erase?

[teal pier]

Is linux better than windows when programming on ESP32 and ardunio uno r3? (Not loading linux on to the boards)

[cloud pilot]

i dont know if i did it properly

[cloud pilot]

do you think its bricked??? i just saw this at the bottom of that page

[ebon dew]

No a bricked board is extremely rare and very hard to accomplish by normal means. You wouldn't see it via USB, wouldn't get a bootloader, etc.. it would be completely unresponsive.

I've seen DanH and others walk people through the issue you're having. There are people that know that whole side of circuit python far better than me. Someone in #help-with-circuitpython should be able to figure out your issue. I just have little experience with it.

[cloud pilot]

yeah i sent something in there, just waiting for a response, thanks again for everything, ill letchu know if i find a solution later incase someone has this issue in the future

[ebon dew]

The main developers that might be there to walk you through it mostly aren't available on the weekends. If you don't get an answer wait until Monday morning or afternoon. Monday around noon to 1pm and 3pm-4pm is the absolute best time to ask a circuit python question as that's just before and after the weekly circuit python meeting. People usually hang out there before and after the meeting to answer questions. 😉

The meeting is from 2pm to 3pm every Monday. Just before or after is the best time to re-ask a question that might not have provided you with a sufficient answer like today. It's ok to wait about 24 hours and ask a question again if it wasn't resolved.

[cloud pilot]

wow thats really good to know thanks! i love how the devs are so responsive and active

[orchid abyss]

even if it's bricked, you can unbrick it by connect a working board (or any swd programmer like the rp2040 debugprobe) with the bricked board and reflash

[ebon dew]

swd isn't in everyone's wheelhouse though. you do need special equipment to do it.

it can be done with an rp2040?

[orchid abyss]

wouldn't a rp2040 debugprobe do it? these things are swd programmers

available for cheap

[ebon dew]

didn't know that. neat. sounds doable.

[orchid abyss]

disclaimer: haven't tried with that board, but i've tried it with a stm32 and i was able to flash a program with it

i was also able to unlock the bootloader with that

[ebon dew]

i've flashed the airlift co-processor with rp2040 passthru. would it be similar to that?

[orchid abyss]

that one flashes through uart

[split light]

So, I built the circuit featured here: https://www.ti.com/lit/an/sboa290/sboa290.pdf
It works, but out of curiosity, how is it generating negative voltages on the output? The mic is being biased around a positive voltage, and the op amp is powered by the 0V and 5V rails, so nothing negative can come out from it... I'm guessing it has something to do with either C4 or C3? But honestly idk, it's just gonna be annoying since when I go to filter it, I'll now need to either bias it around 2.5V and create a Vref or supply a negative voltage to the filtering op amps.

Ideally, I'd like to keep it around 0V and then power the filtering op amps off the 0V and 5V rails, using whatever black magic is going on here.

[stoic mesa]

if you are using Arduino IDE, it doesn't really matter what your OS is.
if you want to use Espressif tools, it is slightly easier to install them under Linux, but really, they can be used under any OS as well

[glad ruin]

Oh brilliant! I see nothing that could possibly go wrong here. And I'm sure there are some politicians who are dazzled by their "brilliance" right now.
https://www.theregister.com/2024/08/03/darpa_c_to_rust/

[stiff brook]

ok do any on the adafruit raspi pico boards come with eeprom ?

and is there anyone here good wit helping to make circuitpy lib . I need once for the si570

[glad ruin]

Those boards usually come with flash

[stiff brook]

they have nvm yes but much more limit life compaired to eeprom

as it is now I have code using the nvm but its not erroring out but I get a white display

8 MB SPI FLASH chip for storing files and CircuitPython/MicroPython code storage. No EEPROM

so I have to figure then how to store on the chip settings

[idle iron]

I want a fishing float/weight that only goes down to specific depth, Anyone have suggestions? i looked into "cartesian diver" but i could not come up with a "passive solution" i think i would need some kind of active manipulation

@late fulcrum what would you do?

[late fulcrum]

Yeah, tricky to have a passive solution, as compressing something like an air bladder would have the opposite effect to what you want.

[idle iron]

so i need some kind of active manipulation of the air bladder and a sensor for depth to actively adjust?

would altitude and weather play a rule in this? i assume if air pressure above the water is less then the depth might be different? maybe not, air and water density is so different might be negligible

[solar kindle]

There's something called a profiling buoy that can be adjusted to sink to a specific depth. No idea how they work or whether they're active or passive, though.

[fair summit]

@cloud pilot @ebon dew The latest bootloader is not 3.7.0, it is 3.16.0. That page is way out of date.

I will make a note to fix those links

[cloud pilot]

So something really weird happened last night with the uf2s I have...

[cloud pilot]

yesterday i downloaded the latest UF2 from this link here and my code did not work, im assuming this is the latest UF2?

however, i have THIS UF2 in my projects coding folder where i just drag and drop everything into the feather m0 express and it always works:

when i dragged the latest UF2 from that link, my prop did not even boot up... however when i dragged the older UF2 into the feather, it worked just as it should, any ideas as to why that might be?

also i had to use a completely different feather, the other one i had is still not showing the Circuitpy Drive

[ebon dew]

try using repl command from mu terminal to erase the file system https://learn.adafruit.com/adafruit-feather-m0-express-designed-for-circuit-python-circuitpython/troubleshooting-2#to-erase-circuitpy-storage-dot-erase-filesystem-2987288

while in repl, you can do ctrl+c and you should be presented with 3 greater than characters is when you enter a repl command. ```py

import storage
storage.erase_filesystem()

you should see at the bottom of repl >>>

then type import storage and hit enter, then type out the next line and hit enter. that should erase your filesystem to new.

I have a different board but this is the repl prompt you're looking for.

[cloud pilot]

THAT WORKED

THANK YOU

i wonder why it was doing that? this feather was fresh outta the box, it even had the stock code working but when i dragged the uf2 into it the board just would not show the circuitpy drive

[ebon dew]

i've encountered that sometimes but not to that degree. i don't know why it happens. possible that windows just doesn't recognize it correctly because you have so many identical boards?

glad it worked for you because that was that was my last attempt. if that didn't work i came this close 🤏 to telling you to file a bug report. 🙂

[ebon dew]

According to DanH I might have actually downgraded you from you from the 3.16 bootloader to 3.7. You can get the latest bootloader from the circuit python download page at the bottom https://circuitpython.org/board/feather_m0_express/

you'll have to redo the bootloader uf2 and circuit python uf2 process but that should bring you up to speed with the latest bootloader. i read the versioning numbers incorrectly, sorry about that.

[fair summit]

that UF2 is not CircuitPython - it is for updating the UF2 bootloader. It was actually old, 3.7.0 instead of 3.16.0. I have changed those links in the guide

CircuitPython is not the bootloader

[ebon dew]

thank you.

yeah i walked them through both the bootloader uf2 and circuit python uf2 process yesterday. once they reflash with the latest bootloader and then circuit python again should be good to go.

[cloud pilot]

goooootcha i see where i was turned around now

[cloud pilot]

thanks again for helping!

[unreal bane]

I'm having some trouble with the Connect app on both Mac & Android. I have a single Circuit Playground Bluefruit. When I start the Mac app it doesn't find it. I've restarted it (and my Mac) several times same result. The Android app does see it and allows me to connect but it only shows modules Info & CircuitPython. Any ideas?

[stiff brook]

need help with getting to drivers for CP

Circuitpyton

xpt2046 touchscreen driver and help getting a si570 chip driver going

[ebon dew]

I answered your question in the #circuitpython-dev If you need help getting it running on circuit python the best place to ask for help is in #help-with-circuitpython

[stiff brook]

ok

[cinder cloud]

never ever abbreviate circuit python again

[ebon dew]

nothing wrong with abbreviating circuit python as CP. plenty of people do it. the problem is there are many things abbreviated as CP like Circuit Playground.

[ebon dew]

I have been made aware privately that there is another unfortunate abbreviation that I was completely unaware of.

[glad ruin]

For future reference, CPy or similar abbreviations will be considered preferable.

[patent hemlock]

and probably less confusing overall considering how many abbreviations there are (yes, you made me look)

[celest latch]

I wanna start learning SOLIDWORKS , can anyone send to me a very useful playlist to start please (for beginners) ?

[cinder cloud]

wont that be cpython?

[stoic mesa]

unfortunately not.
CPython means something esle: https://en.wikipedia.org/wiki/CPython

[jagged citrus]

There are far worse things with that abbreviation

Also it can get pretty confusing at times

Cpy could be circuitpython or cpython

[fair summit]

usually you can tell from context. "circpy" is not ambiguous. "CiPy" is shorter but doesn't look like it's pronounced the same. I use "CPy" mostly. I have avoided "CP", mostly because it was easily confused with "CIrcuit Playground", and for a long time that was one of the primary platforms for CircuitPython. I spent a long time thinking about this years ago when we first came up with the name, and didn't have any terrific solutions.

[patent hemlock]

i like cirpy

[jagged citrus]

CirPy is good

[brittle condor]

i remember seeing an esp32/esp8266 module board like this but i can't seem to find it no more, anyone knows about anything similar?

(i'm looking for this specific form factor to replace a module that was in a smart plug but that died, there isn't really room to put a full fat esp32 in the housing so finding a similar module that fits is kinda the only way)

[fair summit]

look at the "pico" ESP32 module

and boards with that

[brittle condor]

hhmmmmm, it looks similar ig...

but i would probably still need to bodge the wiring...

somehow i managed to find it again on aliexpress lol https://it.aliexpress.com/item/1005006322884953.html?spm=a2g0o.productlist.main.35.7bebIfncIfncKv&algo_pvid=ed8ad781-7e75-4a28-b105-3a158ea6b38b&algo_exp_id=ed8ad781-7e75-4a28-b105-3a158ea6b38b-17&pdp_npi=4%40dis!EUR!6.18!0.93!!!47.28!7.17!%40210385bb17229583859904129e37b1!12000036759928390!sea!IT!0!ABX&curPageLogUid=EkMP3Hj7Izj7&utparam-url=scene%3Asearch|query_from%3A

turns out it's called the ESP-02S

good to know ig

[limpid spindle]

is there a place I can contribute models for Adafruit products that don't currently have a 3D model? I needed a model for https://www.adafruit.com/product/4090 so I put one together, but since there isn't a model already, I figured it might be handy to others, as well. I've found having 3D models really helpful for stuff like building cases and using the models as references for mounting.

https://a360.co/3LVYtsg

[hard estuary]

There is the Adafruit CAD Parts repo - maybe they'll accept a PR? https://github.com/adafruit/Adafruit_CAD_Parts

[ebon dew]

Yes! You can contribute to the Adafruit CAD Parts repo. I've contributed a few 3D models myself. As long as the models are of sufficient quality and can pass a review by Adafruit's 3D model team they will gladly accept public contributions. https://github.com/adafruit/Adafruit_CAD_Parts

ah beat me by a second

[hard estuary]

great minds think alike. 🙂

[ebon dew]

Looks like product id 4090 already exists so your contribution is unlikely to be accepted. https://github.com/adafruit/Adafruit_CAD_Parts/tree/main/4090 USB C Breakout

Your assumption that a model didn't previously exist was unfortunately incorrect. 😦

[patent hemlock]

i have seen a cybertruck in the wild -- it is as 💩 as all reports indicate and WHO THE [BLEEP] PUTS QR CODES ON A SOAPBOX RACER! (my poor phone was having a browser crisis just taking a photo of the thing)

[limpid spindle]

oh, I totally missed that! I was used to finding CAD for the stemma QT sensors in their own repos so I didn't think to look elsewhere

thanks for the headsup

[ebon dew]

Someone put a giant QR code on a cybertruck? That's one way to avoid quick pictures.

[patent hemlock]

yeah, it's where the license plate would "normally" be and a huge one on the ... door? it looks like a really bad attempt at a post-apocalyptic fan-boy's wet-dream of an impractical "combat vehicle" cobbled together in a garage with minimal skill and tools

[jagged citrus]

it looks like something i (mr. it werks) would cheaply build

im sure i remade it in tinkercad once, took me like 20 minutes

[manic stirrup]

Does anyone know why the bluefruit firmware 2.0 has issues with being brought up after successful hciattch?

I have baud set to 115200 and on flow - when I go to bring up the interface with hciconfig I get an error about connection timed out

[burnt tendon]

I live in the bay area, I've seen plenty of cybertrucks.

I feel like my stint at the 3D printed car company actually makes cybertrucks feel uglier.

[timid anvil]

I need help with an app on my phone.

[late fulcrum]

What sort of app? Java? Electron?

[timid anvil]

Naw Zap Surveys

I've used it for a couple years but now it only works when I connect to certain wifi connections why would that be?

It doesn't work on my home wifi anymore and that's pretty much the only way it seems to work ever since I've had this app is to a wifi connection.

[late fulcrum]

Could be an SSL or DNS issue

[night crescent]

We are back! The longest running & biggest worldwide online Show and Tell TONIGHT! Wednesday August 7, 2024 at 7:30pm ET come on by and show & share your projects, retro hardware, and more! https://youtu.be/MNbCL8tCwLg

[hasty quarry]

My dad has a CNC wood cutting home business, and he was charging at a constant price per square inch of material processed rate. He kind of thought this idea made prices grow way too fast as dimensions scaled, because area does increase quite fast. I’m way better at math than him, and he asked me what would probably make some more sense. I really have no financial formal education but I thought…what about a rate of $ / log(in^2) instead? I asked him for a reference point from his intuition and made him a C*ln(A + 1) curve of prices, and he was happy with the results

But I kinda wonder what else I could’ve done. It felt like a strange solution

But I had no other immediate ideas

[late fulcrum]

My first thought is sqrt(x*y)

[hasty quarry]

Similar idea yeah

Bit nicer considering no need for the shift

[late fulcrum]

There could be a correction for number/length of cuts, and so forth

[vestal pier]

how about just proportional to total linear movement of the CNC tool?

• a fixed setup fee

[late fulcrum]

That might work too. Although I'd get a real bargain on a recent CNC project I shopped out that was a considerable number of holes.

That shelf with all the screwdrivers in it is the one I had CNC machined

[night crescent]

WE ARE LIVE - BROOKLYN! ASK AN ENGINEER! https://youtu.be/9bKJyZ0j5lE

[dusty citrus]

Somehow I managed to oxidize the tip after some day of use...
Any way to remove the bad layer cheaply? On the net some suggest sandpapers and other don't... Yet other sources do suggest using acid, which I mean does cost more than new tips

At least I guess as the solder does not stick anymore

[somber spindle]

the tip of what

a soldering iron?

[night crescent]

Tune in for some special product announcements at 11am ET! https://youtu.be/n5j3Y2Naao0

[dusty citrus]

Yeah a soldering iron

[patent hemlock]

oh for cryin' out loud - https://thehackernews.com/2024/08/0000-day-18-year-old-browser.html

[somber spindle]

As long as the oxidization is just surface level, you should just be able to heat it then re-tin it

[late fulcrum]

There are commercial tip cleaners that work well. Here's one example: https://www.weller-tools.com/us/en/industrial-soldering/products/soldering-accessories/tip-activator

[strong flame]

New RPI SDK release just came out and shows something very interesting..
||RP2350!!!!||

||RISC-V coproccccc||

[late fulcrum]

Sure enough: https://www.cnx-software.com/2024/08/08/raspberry-pi-pico-2-raspberry-pi-rp2350-dual-core-risc-v-or-arm-cortex-m33-microcontroller/

[honest jolt]

520 kb of RAM and 4 MB flash is rivaling ESP32 processors!

still no reset button though lol

[strong flame]

Still no Type-C..

[hard estuary]

I'll wait for the feather so I can have type-c. 🙂

[honest jolt]

there's also an A and B version, hopefully someone breaks out the B version for all those extra pins

[strong flame]

12 PIO!

[hard estuary]

LadyAda just had a livestream, said she wants to make a new Metro with the B version for those extra pins

[late fulcrum]

Still no built-in DAC...

I get it, though: it's tough to build a mixed-process chip that cheaply

[hasty quarry]

That’s an interesting idea

[thick wind]

Woah, that’s not bad at all for the price. There’s even some security features now.

If they do come up with a cheap 24xx I hope they’ll add a DAC and a better ADC peripheral, but that’s probably a ways out.

[vestal pier]

I don't get the dual Cortex OR dual Risc-V cores. Are they different SKUs, or do you have both sets in each chip and somehow choose what you're using?

[thick wind]

The latter.

Wonder what bonus functions we can milk the third PIO for…

On that note, does anyone know what an HSTX port is? The feather rp2350 mentions it but I’ve never heard of it before?

[viscid folio]

High Speed Transmission - for DVI and other high speed outputs

(itll be in the datasheet)

[late fulcrum]

Chips have both, and there are various boot flags to enable/disable architectures, as well as ways to enable both and have the code switch (with a default to start with)

[vestal pier]

nifty, thanks guys!

[thick wind]

Oh, there is an FPU.

[vestal pier]

yeah, noticed that

[thick wind]

And they claim to have fixed the nonlinearity issue in the 2040 adcs

[dusty citrus]

Retin, by itself or with a other compound?
@late fulcrum they cost more or less like a new tip...

[glad ruin]

It is not a coprocessor. They don't run simultaneously.

At this point I've fully lost faith in RPF and RPi LLC. I avoided the Pi 4 because of its terrible power design. I wasn't happy with the direction they took the Pi 5 with its 5A @ 5V requirement. Then they proved that they were trend-chasing by introducing an "AI accelerator". They have a long history of questionable design decisions. I'm not surprised by what they've done with the RP2350. Just disappointed.

[strong flame]

yea I said that before I read the datasheet, it's like the riscv duo kinda

[late fulcrum]

The tinning compound does cost some, but can be used over and over (I've been on the same tin of it for 15 or so years)

[urban arrow]

So glad for TheLady and Phil in new digs and back in business!
Placed an order this morning, and got the shipped email 1 hour and 9 minutes later.
😀 😀

[median viper]

@late fulcrum hey guy I am up in NY for the week, in Rochester, I am learning about RISC-V, do you know any RISC-V SoC systems that are affordable?

[late fulcrum]

I imagine there are, but it's not something I've looked in to.

[median viper]

I heard a a speech from the Linux foundation they are going to support it because there is no licensing fees so it's a general computing standard, it's just that the computer seems rather pricey right now

I will look around

[dusty citrus]

From press there was some milk V board around there
I can't say how better are they thought, maybe it makes sense if you're designing your ic, for consumer they all come in a similar price-format featurewise

Heh looking around there are tons of fiber cabinets that are open up, maybe it makes more sense to use some kind of splitter to borrow some free internet /s

[median viper]

Well unlike ARM doesn't charge royalty

[dreamy furnace]

Can someone please help me 😭
So I just got a new mac for coding and literally no code is working.
This is my code:
import board
import neopixel
import digitalio

pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, brightness = 1)

colorlight = (85, 166, 237)

while True:
pixels.fill((colorlight))
simple right?
but then i get errors like this
Traceback (most recent call last):
File "code.py", line 48, in <module>
File "neopixel.py", line 141, in __init
ValueError: NEOPIXEL in use
I've tried everything

[glacial wigeon]

from what i can see, they can run simultaneously
the chip has 2 arm, and 2 risc-v cores
and you must pick exactly 2 of them to be active
that does allow arm+risc-v, but then you cant share code between them, which complicates your firmware

[glad ruin]

Yeah, it's kinda odd.

[glacial wigeon]

currently going over the entire datasheet, the address translation, tmds, and anti-rollback all look useful to solve various limits ive seen before

[tardy badger]

Nothing like a new chip dropping to get you back in the PCB Design saddle. (progress so far)

[patent hemlock]

talk about not waiting until the paint's dry... 😏

[tardy badger]

Not super sure what I want to do with this yet. The goal is to break out to two rows of 0.1" headers, add a 22 pin FPC connector, some sensors.. PSRAM, not sure whatelse yet.

Oh I did see some new Bosch sensors that came out that I might try too.

[errant willow]

I’m looking for some answers regarding a project that I’ve recently taken up. It appears to be outdated and runs on a Pi2/3. I was curious if anyone knows whether the project has been updated recently. If anyone has any advice or directions, that would be greatly appreciated.

[late fulcrum]

It's Python code, should be pretty portable. It seems to depend on pygame, which may well be installable on other Pi boards.

[tardy badger]

ah yeah, it's starting to look pretty neat now.

[late fulcrum]

I'm guessing you're going for the integrated flash version? I couldn't find prices on the individual chips.

I'm guessing the orientation of the chip relative to the USB connector is largely determined by the USB data pins. It looks like you might be able to rotate it 45° widdershins and then shove the inductor a little farther away from the USB signals.

[quartz marsh]

Surely you add USBLC6-2P6 ESD protection on the USB-C port

[quartz marsh]

Or did you already use individual TVS diodes

[quartz marsh]

Very cool btw, is this like a compute module which you're going to stack add-ons on top of?

[late fulcrum]

I tend to see two schools of thought on capacitors. Some designers like to put them parallel to the edges (for shortest traces) and run signals around and under them, others like to put them perpendicular to displace other traces the least. You seem to be the latter type. From the vias, I'm guessing this is a 4-layer board.

[quartz marsh]

this would be a good way to do it for this design

[quartz marsh]

It would have to be 4-layer for high speed signals like USB and the crystal I would assume

[late fulcrum]

Nice guard ring around the crystal

[tardy badger]

If you look in the reference design, they actually put their inductor pretty close. But they also use a much smaller custom packaged inductor so that helps too. My choice is a "best guess for right now" until their custom one is available.

[tardy badger]

I might, I haven't gotten that far yet. I'm just getting the basics laid out before adding anything else. Being a USB 1.1 PHY, ESD protection isn't super critical.

[tardy badger]

That's the the plan yes.

[thick wind]

I don’t think 4-layer is a hard requirement for anything under 100MHz?

[tardy badger]

Here's from the hardware design doc

[tardy badger]

it's not. though 4 layers is pretty cheap these days so might as well spring for it

[thick wind]

It’s a good price for dev-board-sized devices for sure.

[tardy badger]

though my board is just 2 layers

I just like the vias 🙂

[thick wind]

I’ll probably try to use 2-layers for my larger stuff still.

[tardy badger]

I'd only consider 4 layers if I was planning to really push the HSTX bus

which.. I might..

[thick wind]

I’m thinking to myself why upgrade unless I use it

But then I can’t find a use for it myself so ehhhh

[tardy badger]

The mezzanine connectors are sort of a first thought of "I wonder how this would fair with an FPGA partner" and the HSTX bus would provide a really fun interconnect to an FPGA

sure, just TX but you can probably push the 3 PIO for RX backwards

[thick wind]

This thing would be fun to pair with an fpga, wouldn’t it…

Like a miniature cpu/gpu combination

[tardy badger]

Yeah, I thought maybe it would be fun to put something like a CrossLink-NX or Certus-NX on the other end of the HSTX bus, drive a display with images from a camera connected to the RP235x

[thick wind]

There's enough pins and an FPU, time to build a 3D printer based on one of these.

[tardy badger]

hehe yeah

I'm excited about the SecureBoot ROM

and the fact that it's open source too

[glacial wigeon]

i'm wondering, can HSTX do CSI and DSI?

[tardy badger]

no, but you can do DVI

though technically speaking.. you should just be able to send about anything

it is a DDR interface though so up to 300mbps sounds promising

[jagged citrus]

I saw raspberry pis being used at a supermarket

[tardy badger]

I was thinking about it. I really like the idea of having integrated flash and just using the main qspi port for PSRAM or additional flash.

[vestal pier]

are there any chips that use qspi for high speed internet?

[tardy badger]

maybe?

[tardy badger]

https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/00001913A.pdf

has QSPI support

[tardy badger]

Just need some buttons for boot/reset. maybe some LEDs. SWD debugging port. pretty close to being done.

[fringe swan]

Looking for a thread for help with the hallowing m4. I dont think there is one. Which help thread is appropriate?

[hard estuary]

It might depend how you're programming it, there's #help-with-circuitpython or #help-with-arduino or #help-with-projects is more of a catch-all

[tardy badger]

One more set of headers to go, and a little silk screen

[tardy badger]

and it's done.

[ebon dew]

Looking really good! What are the primary and secondary chips? What kind of GPIO connectors are those?

They remind me of the tiny ones inside a smart phone.

[tardy badger]

Primary QSPI Flash and a secondary QSPI Flash that can be used as well 🙂

the connectors are a kind of HIROSE mezzanine connector

[tardy badger]

It was requested that a stemma QT/QWIIC connector was added lol

hand the wrong JST connector for stemma lol...

[stuck moth]

You may want the secondary to be PSRAM instead of flash

[tardy badger]

yeah, that too

[vestal pier]

what's SW1 for?

[tardy badger]

turning on and off the 3.3V regulator

[weary fiber]

Recently discovered uPNPwizard and I'm in love

no more plex port forwarding issues while I'm stuck without access to router settings

[thick wind]

Does that crystal interfere with the StemmaQT connector? Would a vertical connector fit better there?

[tardy badger]

It shouldn't

[thick wind]

Oh it was changed in the second pic nvm

[tardy badger]

no worries 🙂

what a fun board to design though

Imagine being cool enough to get to be a design partner like Solder Party, or get early access to the Pico 2

Too bad it's going to be a bit before I can build it. I don't think i'd be able to get samples like I did with the RP2040

I kind of want to redo my RP2040 watch with the RP2354-A. better low power mode and TrustZone are pretty nice features to have in a mobile chip.

[glacial wigeon]

i got a schematic from somebody else, that uses a tangled web of resistors and 3 gpio, to emit CSI from dumb digital pins on an fpga

it uses 2 pins with one set of dividers, to create the differential high speed signal at low voltages (HSTX can take this role)
and then 1 pin with a different divider, to create the single-ended low-speed signals

[tardy badger]

You could probably figure out a way to fake it out. It won't be very fast though. MIPI for CSI is usually pretty quick.

[glacial wigeon]

you would be limited to 150mhz ddr if you dont overclock, but 2 lanes is enough to meet my bandwidth needs

[tardy badger]

When you get your hands an an RP2350, definitely let me know how that goes for you. I'd be curious to see what happens

[tardy badger]

My RP235X-B Evaluation board if anyone is interested
https://github.com/Oak-Development-Technologies/RP235X-B-Evaluator

[glacial wigeon]

this can turn 4 1.8v gpio from an fpga, into a differential signal that can move 600mbit into an rpi

so in theory, you can just rig up a pico (1 or 2), with 1.8v io
the LP pins would be PIO for the low-speed stuff
the HS pins would benefit from HSTX (half the clock needed), but PIO might work?

[full spade]

Hey everyone

[tardy badger]

PIO should, you could in theory drive stuff pretty quickly from it since it's independent of the CPU.

[glacial wigeon]

also, using the new random access stuff in rp2350 pio, you can store the length controls into the "rx fifo"

rather then having to put the length as the first word on the tx fifo

so you can program a length into 2 SM's, the LP SM can emit the startup, the HS SM can then emit the sync and packet, and then the LP SM can finish the packet off

and use some inter-SM IRQ to sync them all together

and tri-state the pins as you pass roles

in theory, this can also drive a DSI display, just load different packets into the FIFO

so you dont have to keep tip-toeing around "its not hdmi", lol

[tardy badger]

lol yeah, that seems like it'd be a good option to try out

[proud otter]

weird vga male wire that can be plugged into a phone *shocking*

and its a charger

*shockest*

[round minnow]

VGA is really DB-15. (generic) DB-15 can be used for other things as well. That image does not look quite like DB-15, even it it fits in a VGA connector.

[whole jacinth]

although DE-15 resembles that image, the pin count is different. the image shows an 11-pin connector. (VGA is DE-15, not DB-15)

[gloomy blaze]

Is the pygamer anywhere in stock?

[jagged citrus]

THERES A PI PICO 2?!?!?!?

[ebon dew]

https://tenor.com/view/ok-oh-yes-yes-o-yeah-yes-no-yes-go-on-yea-yes-gif-14382673246413447193

It's twice as fast with more ram and more goodies. Same footprint so you can drop it in projects that were using a Pi Pico 1.

[jagged citrus]

Niice

[late fulcrum]

Soon...

[hard halo]

I don't like reading books like this -> https://www.feynmanlectures.caltech.edu/

I think it's terrible reading online or in the PC

I like the paper book, otherwise I will not read :/ I would really like to change this, cause I've read maybe about 50 books my entire life, and no PC books

and I have like 15 billion dollars worth books online for free in the internet

It's like I'm like rich and not using my money 😦 😦 😦

[proud otter]

so then a wannabe vga male port

[dusty citrus]

Anyone knows anything like
https://www.impulse-embedded.co.uk/products/d/amd-ryzen-embedded-sbcs.htm
But with actually pricing that's not down to pointless inquiries?

[glad ruin]

https://fxtwitter.com/MKVRiscy/status/1821870120697987492

[patent hemlock]

i just want to know who is licking these boards.... "taste"? really?

[dusty citrus]

...nintendo maybe

[patent folio]

Nice, somebody's been enjoying the projects on T-Deck...https://www.lilygo.cc/products/t-deck-plus

[hard halo]

https://www.youtube.com/watch?v=-kFOXP026eE&list=PLS3_1JNX8dEh5YcO-Y05stU0u_T9nqIlF Richard Feynman jokes were the best 16:11 😅

[hard halo]

physics teaching at university changed a lot from his time to today

[patent hemlock]

physics has changed a bit, too 😀

[hard halo]

They pay so much attention in equations that forget how important are explainning them profoundly so you can understand why each term is in there, things like this were lost :/

[hard halo]

Modern Physics is a separate class at university, this is Physics 1 basically, Physics 1 teaching changed a lot

[patent hemlock]

i will have to take your word for it (i was closer to his day than today's courses 😈 )

[dusty citrus]

some kind of mechanical sensor that can detect a fall, without any electronic component, that when "activated" makes a linear motion? I did quick sketch of a possible solution, I dunno if it would work, but surely if the fall goes aganist the red wall it would not work on that direction, unless I add a second pair.. anyone has any other idea?

[dusty citrus]

or a crank....

[late fulcrum]

Some sort of spring loaded pendulum that's centered and extended while exposed to gravity but retracts when in free fall?

[stiff brook]

so I am looking to use a feather board with stemmicq but I need a board with eeprom on it so we can store default settings and settings changes

is there one ?

[fossil dawn]

On RP2040 you have emulated eeprom. It uses a small portion of the program memory flash. Disadvantage: amount of times you can write to it depends on what flash adafruit uses but it's still more than enough for something like settings.
Similar libraries (that are even more advanced I think) exist for esp32. (I think it's called "preferences" library for esp32)

[stiff brook]

yes but as this is a radio projet and has to have a long lifespan O would like to use eeprom

nvm wears out faster

[fossil dawn]

Check the datasheet and calculate

The preferences (?) library on esp32 even does some wear leveling

[stiff brook]

you have to save settings on any change like freq channel mem storage and such so it would wear out faster

hmm so a esp32 feather might be better ?

ok or I could put a i2c eeprom on our cntrol board also

hmm . have to keep cost down

[fossil dawn]

The flash on the rp2040 feather still has "min. 100k erase cycles per sector"

[stiff brook]

ok

[fossil dawn]

I think there's an atmega328 feather with eeprom but then you have an atmega328 xD

[stiff brook]

and I think its 64k right

the issue I find with nvm is you have to rewrite all the settings every time with eeprom you can write just what changes

as I recall

[fossil dawn]

Preferences library on esp32 takes care of that for you

Not sure how the emulated eeprom library on rp2040 arduino-pico works

[stiff brook]

so which of the esp32 feathers s best

[night crescent]

LIVE FROM BROOKLYN! Desk of Ladyada https://youtu.be/1Q7oOinZHQI

[stiff brook]

wow hour late

[hard halo]

I am 4h thinking about this and I could not think of anything

but why not use an eletronic component? Is it more profitable?

[ebon dew]

@stray harbor Adafruit is the only supplier of the Memento enclosure kit to my knowledge. If it's out of stock it's out of stock. 😦

3D files are usually in a products accompanying learn guide https://learn.adafruit.com/adafruit-memento-camera-board/downloads If they are available they will be in the downloads section of a product learn guide.

[stray harbor]

Thanks

[dusty citrus]

I should order and wait for parts, while if I can just 3d print it why not

[night crescent]

🐍🎉 THIS Friday - August 16, 2024 - CIRCUITPYTHON DAY! 🐍🎉

https://adafruit.com/circuitpythonday2024
https://circuitpython.org

Join the community of creators, hackers, educators, and more - celebrating python on hardware! The easiest way to program microcontrollers!

11am 3D Hangouts with Noe & Pedro
1pm Maker Chat: Guy Dupont
2pm CircuitPython Project Highlights with Paul Cutler & Tod Kurt
4pm JP’s Workshop
5pm Deep Dive with Scott
6pm CircuitPython Game Jam with Tim

Ladyada is doing a special event during the day (stay tuned for the time), AND there will be discounts at Adafruit, ALL DAY!

[orchid saffron]

what is this server

pc talk

[patent hemlock]

see #welcome

[jagged citrus]

woah nice! luckfox boards and milkv now have blinka support

and mine just arrived today

[solemn sierra]

i was curious on the average time before orders start shipping?

[ebon dew]

I just ordered something last week and it shipped within a day or two and arrived within 5 days. In total from time of order to time of arrival is typically about 5-7 days depending on where you live in the US and the shipping option you choose. The closer you live to NY the faster you'll receive your package.

If anything... Adafruit's shipping department is now a little faster at the new location. I ordered regular USPS ground shipping and it got to Florida in 3 days when it would typically take about 7-8 days. Because I order a lot of stuff I can tell the shipping at the new location is a little more efficient. I have no idea what their shipping dept looks like or what changes were made at the new location. I'm just a regular customer and noticed it was actually a little faster than usual.

[sharp nexus]

Supsup lads!

One Q - Can I use X9C103 module in 20V board setting?

[brittle condor]

please someone help me understand this right, cause i'm really struggling here...

I'm trying to write firmware for a smart plug which has a BL0937 chip to measure power, voltage and current
datasheet: https://www.belling.com.cn/media/file_object/bel_product/BL0937/datasheet/BL0937_V1.02_en.pdf

according to the datasheet the frequency is calculated as F=V/V_ref*15397 which would give a frequency of 2.9Mhz, wouldn't that be a bit excessive to be able to measure it with a typical micro controller?

the math for the power frequency comes out to 266MHz.... that is quite high...

like, i've tried implementing it with triggers, but it just crashes my esp8266 and reboots it constantly...

[thick wind]

The circuit in the typical application uses a rather large voltage divider to sample the voltage. 1980:1 ratio should bring a 240Vac wave down to around 120mVac, or a 1.45kHz pulse output.

If you did hook your line voltage directly to the voltage input terminal of the chip, I’d consider the possibility of the chip being fried and get a new one.

If you’re hacking an existing plug, you should measure the resistances in that voltage divider.

[brittle condor]

it's an already existing product, I'm just replacing the microcontroller with my own

the existing plug has 3 480k resistors in place of the 6 330k from the reference circuit, and the 1k resistor is unchanged

[thick wind]

For best results, measure the resistance with a meter. This helps avoid any discrepancies in resistor tolerances and saves you some trouble in doing the math twice.

But assuming 480k X 3 = 1.44M, a 240Vac input will step down to around 166mVac, a much more reasonable frequency to measure.

With a fixed 38us pulse width, your frequency limit is around 26kHz anyways. However, this allows you to push this signal through a low-pass filter and measure an analog voltage instead of a frequency measurement.

[brittle condor]

I've measured a couple of loads and periods, this is what I've got
12w --> 144000uS
50w --> 52300uS
how should i convert the period into wattage?

[thick wind]

Have you tried the power formula? @brittle condor

[brittle condor]

well, inverting that formula would give me the "equivalent power consumption" since it's scaled down by the resistor divider, right?

[thick wind]

To my understanding, that would be correct.

[brittle condor]

how would i go back to the real power consumption then?

[thick wind]

Multiply by the voltage divider ratio.

Current should also have some conversion, you’ll have to measure those resistances and figure that out as well.

For the shunt resistor, hopefully there is a marking because most multimeters won’t be able to read that reaistance accurately.

[brittle condor]

yea it's the same as the ref circuit

1mOhm

[thick wind]

Then you should be close enough with just the voltage divider ratio.

To the best of my knowledge anyways.

[brittle condor]

alright, i guess I'll try it now

[brittle condor]

ok, fun development, i just did the full math, and the value of the constant that i calculated by deducing from the measured values was actualy very close to the valye i got from the math lol

my value was 1800000, the calculated value is 1814230 lol

issue is... the calculate values are wrong...

like, it's the right order of magnitude, but it's the wrong actual value

i fear that might just be my bad code...

ok so, just to make sure, i used my other two smart plugs to check the power usage and indeed my power meeter is correct, my lightbulb does comsume 12w

so now i wonder why my code is measuring 9...

[barren perch]

https://m.g3l.org/@mmu_man/112961079578064491 🚨

[jagged citrus]

github seemingly just died

[tranquil swallow]

Indeed, there goes my page

[thick wind]

I believe the power measurement is just a product of the voltage and current readings. I'd check the accuracy of the voltage reading first, then test your plugs with a different load to see if the error is proportional or offset.

[night crescent]

SHOW and TELL 8/14/2024 https://youtu.be/77yRMD3ZO-M

[glad ruin]

https://cdn.discordapp.com/attachments/923433336163151913/1273422488747114619/Untitled.png

[jagged citrus]

what is this creature

[glad ruin]

I'm pretty sure it's Whinnie the Pooh.

[jagged citrus]

pink unicorn

[night crescent]

ASK AN ENGINEER 8/14/2024 LIVE! https://youtu.be/6yzP2oDYrvc

[brave copper]

Can the SoundFX be power by two AAA batteries? - what's the operating Voltage I need?

[brittle condor]

i realized that i flipped the pins for the power and the current/voltage measurement, so what i was actually measuring was the current (both active and reactive) and since my two test loads had different power factors it would give different results depending on the load. Flipped the pins and now i've resoluted to just trying different values for the constant i have to divide by, I've got 3 other power meters that agree on both power and voltage measurement so i'm trying to get as close as possible to those values....

question, is it a bad idea to attach and detach interrupts constantly on an esp8266?

i've noticed that since implementing interrupts to measure power in my project, my esp8266 gets quite a lot warmer, so i'm worried i'm kinda overloading it, and perhaps disabling measuring current and voltage constantly and doing it only once in a while would be better. opinions?

[late fulcrum]

It's a little complicated because the chip has on-board regulators. The input voltage needs to be at least 0.3V above AVDD, but AVDD is programmable between 2.6 and 3.6V. So if your AA cells provide (say) 3.0V, and you set AVDD to 2.6V, it would give you 100mV of headroom. Note that the breakout board also contains isolation diodes which introduce their own voltage drop.

[ancient rivet]

3xAAA is the recommendation. more info here:
https://learn.adafruit.com/adafruit-audio-fx-sound-board/powering-it

[brave copper]

the ecto goggles inly uses 2 AAA which is 3 volts and I'll be using two buttons on it red is the flash charge sound and the bottom can be the cmaera shutter sound

[late fulcrum]

On the one hand, you might get away with it if you programmed the voltage regulators to 2.6V and bypassed the series diode and your battery stays near its nominal voltage. On the other hand, you could just try it and see. On the gripping hand, you could use a voltage booster.

[brave copper]

3v should be good enough for two basic sounds

[ruby pasture]

Has anyone worked with custom fonts on an ST7789 SPI Display? I'm using an ESP32 with an ST7789 SPI display. My goal is to input a word through the serial monitor, have it translated to another language (Sinhala) using the Google Translate API, and then display it on the TFT screen. However, my custom font isn't displaying correctly because the response is in UTF-8 format. I need to convert this format to Unicode to work with my custom font. Ultimately, I need to convert the Google Translate API response to Unicode. How can I achieve this? Has anyone done this before?

[late fulcrum]

UTF-8 is Unicode.

[ruby pasture]

🧐

[ruby pasture]

I need to convert UTF-8 format to Unicode to get a response from Unicode.

[late fulcrum]

Again, UTF-8 is Unicode. Do you need to convert it to UTF-32 to index into font tables, perhaps?

Or more specifically what encoding does your custom font use?

[ruby pasture]

I have a custom font. When I insert a normal meaningful unicode (English word to Sinhala word and I got the Unicode of Sinhala word) it correctly shows on display using that custom font. So I think the Google Translate API response is not in unicode format. So I should convert that response to Unicode. Then put that final unicode response to print on display.

[late fulcrum]

It sounds like you're saying Roman characters (such as "U") appear in your font at the same address as their Unicode representation. For such characters, this is fairly trivial, as a Roman "U" is 0x55 in UTF-8, and it is 0x0055 in UTF-16. It's a little more complicated with a Sinhala character such as "යා" (yayanna). In UTF-16, it's 0x0dba. But in UTF-8, it's represented as 3 bytes: 0xe0 0xb6 0xba.

So if it's present in your font at offset 0x0dba, you'd just need to convert UTF-8 to UTF-16. There are two ways to do this.

There's the simple way, which just looks at the bits and assembles them accordingly. Then there's the fully fleshed out complete way, accounting for surrogate characters, continuation bits, and all the other complexity that Unicode supports. I'm guessing the simple way is sufficient for your purposes (although there are some ligature issues that might crop up)

[late fulcrum]

I dashed off a quick example in C of the simple conversion from UTF-8 to UTF-16: ```c
for (uint8_t * bptr = text; *bptr != '\0'; ++bptr) {
if ((*bptr & 0x80) == 0x00) {
// 1 byte sequence
process(*bptr);
} else if ((*bptr & 0xc0) == 0xc0) {
// 2 or 3 byte sequence
code = 0;

        if ((*bptr & 0xf0) == 0xe0) {
            // 3 byte sequence
            code |= (*bptr & 0x0f) << 12;
            ++bptr;
        }

        code |= (*bptr & 0x3f) << 6;
        ++bptr;
        process(code | (*bptr & 0x3f));
    }
}

For the complete approach: https://github.com/Davipb/utf8-utf16-converter/blob/master/converter/src/converter.c

[fierce torrent]

Is there an appropriate space or channel for questions on the adafruit_midi library and messages ? Thanks

[hard estuary]

I would ask in #help-with-circuitpython as it's a CircuitPython library

[fierce torrent]

thanks Paul

[chrome oasis]

Hi, does anyone know what the best website to get an acrylic piece cut and engraved to any shape? Specifically one where you don’t have to make a quote - one specifically designed for making one or two items. It should also preferably be in the UK - I need this quickly, before the end of next week. Sorry if it’s too specific!

[late fulcrum]

I usually use Pololu, SendCutSend, or Ponoko, but I'm in the US.

It looks like Ponoko has a UK presence: https://www.ponoko.com/blog/ponoko/now-you-can-make-in-the-uk/

[dusty citrus]

I'm doing some pretty 💩 work here, but I can't get out the solder of the two first shorted pins, it seems like it's stuck on the soldermask, I can't hear it up correctly, the pump doesn't reach there, nor copper fibers seem to work

Nvm solved with a ton of paste

[chrome oasis]

I saw that on the Learn guide for the Qt Py SAMD21, and it says this about the 5V pin: "This is 5v out from the USB port. You can also use this as a voltage input but you must have some sort of diode (schottky, signal, power, really anything) between your external power source and this pin with anode to battery, cathode to 5V pin." Why is this? Do you absolutely need a diode or will it break otherwise? Is it just to protect the USB port or something? (because i'm making a battery powered project which won't ever be plugged into usb at the same time as the batteries being live, so if it's just to prevent too much voltage being fed into the usb port of the computer, it should be fine.)

The reason why I don't just buy some is that I found this out after I ordered my parts -_-

[late fulcrum]

You have the right idea: the idea is to protect the computer and circuitry if the USB and another source are connected at the same time. It's all to easy to forget just once and destroy your computer (ask me how I know)

[chrome oasis]

Luckily the project is super simple and shouldn't take long to do

So I'll add the battery afterward

[chrome oasis]

would 3 AA batteries even be enough to destroy my computer?

[thick wind]

For future issues like this, the key is to add flux, which will help the solder flow when it melts. I’d also recommend learning to use an iron and solid solder for through hole soldering, as excess paste often ends up leaving a lot more of the small solder balls all over your board. If they get loose, they could do bad things for your circuit.

[late fulcrum]

3 AA cells is around 4.5V (or less if they're NiMH). Without the diode, they'll try to drag down the 5V USB supply voltage to their voltage, drawing significant current in the process. What happens next depends on your computer. Many computers have a polyfuse or current sensing in their USB ports and will shut off the port due to excessive current draw. However, some computers lack these protections and could suffer damage.

[fair summit]

if the battery doesn't have to be internal, you could also just use a USB power bank. Note that some shut off if the current draw is too low. Some can override this: Voltaic Systems will, and at least some Anker power bnaks let you push a button to get it into a low-current mode.

[chrome oasis]

i'm using a modern laptop made in the last 5 years, its not cheap so i can imagine they would put good usbs in

but still, i'll probably add a physical thing on top of the usb that reminds you to NOT CONNECT THE BATTERIES AT THE SAME TIME

itll be an internal usb, the end user wont be able to access it

[fair summit]

If you make another project like this, you can consider the Feather boards, which have a built-in battery charger. Or you could add this to the current project: https://www.adafruit.com/product/5397

https://learn.adafruit.com/adafruit-qt-py-charger-bff

[night crescent]

BIG SALE TODAY!
https://adafruit.com
16% OFF SALE! CODE: CPD16
TODAY ONLY 8/16 12:00 AM EDT through 8/16 11:59 PM EDT
*SOME EXCLUSIONS MAY APPLY
*WHILE SUPPLIES LAST!

[dusty citrus]

Maybe is that it's a while that I don't solder pins, but I never had this sort of problem, the blue board is the absolute garbage that I got... At desidering I was always bad, I guess I call it a day.. if it works

[thick wind]

In that case, either the solder mask layer has been damaged somehow, or the solder mask is just of terrible quality…

[shadow siren]

use some liquid flux and the soldering pencil is too cool, turn up the temp. from the pics it looks like cold solder joints

are you using 60/40 lead solder or lead free, if lead free then you need a different pencil temp to make the solder flow.

[dusty citrus]

The temp of the iron was setted at 450C although from the display it reaches only 400C...
As for solder/flux random stuff from ali, I dunno if I used it elsewhe, going to try with random pegboards and pins and see how it goes

On the blue board I can't heat up the pins, when I put solder in it doesn't stick, and if it does I can't get it out easily

[late fulcrum]

That solder might be terrible

[shadow siren]

This is 55/45 lead from Ali express

This Lead free same supplier

solder paste has a different melting point and the way it works on boards, not for through hole soldering

[dusty citrus]

On the "pegboard" it looks fineish

[dusty citrus]

Any recommendations that does not cost a kidney and could be sourced on Ali?
Weller stuff is pretty expensive

[late fulcrum]

This is my everyday solder. It's nice and doesn't cost a kidney. Not sure you can get it on Ali.

This is my favourite solder. An absolute joy to use, makes gorgeous shiny joints, it's like a secret weapon. And yes, it costs a kidney.

[dusty citrus]

So on the blue board either damaged/bad soldermask/pins?
On the pegboard it doesn't seem too bad... Not that shiny but it's not a blob, and I can heat up the pins and let the solder stick to the th pad
Or maybe I suck, it's also an option

[thick wind]

I for some reason doubt it’s an issue with the iron or the solder. If the thermal mass of a plane or trace is too high, you may find more success with some preheating of the board.

Protoboards have no traces, so thermal mass of each spot is negligible.

[late fulcrum]

I'm not sure I agree. I think it is the solder and perhaps the iron (both temperature and tip tinning). It looks like the solder isn't properly liquifying, which is why it's sticking to everything.

[shadow siren]

This is my flux system and the flux I use. The bottle on the left, marked Weller, is a little squeeze bottle with a needle-like tip for squirting out flux. The flux I use does not need to be cleaned up; it is not a corrosive flux.

[dusty citrus]

So if P understood it right, I preheat the board (at what temp?) and then try to solder the pins?

It comes to my mind, that I tried also using hot air, as with the iron I wasn't getting results, but didn't much either

[thick wind]

Can’t say I have a recommendation on preheat temps, especially for rework. Applying heat across the whole board makes soldering that much easier, but attention to the rest of the components is important.

[dusty citrus]

It's 20/30 bucks for 250g 🥹

[shadow siren]

For the through-hole soldering, you should not need to preheat; from my experience, this is a pencil temp and flux issue, usually when the PCB manufacturer pre-tins the pads. I have had PCBs that could have been pre-tinned better, and I had to pre-flux the joint before applying the solder.

I would just search Aliexpress for a 500g spool of lead .8mm solder like this.
https://vi.aliexpress.com/item/1005005984652524.html?gatewayAdapt=glo2vnm

A spool like this will last a long time

[night crescent]

Adafruit just passed 777 certified open-source hardware projects! https://certification.oshwa.org/list.html?q=adafruit currently 27.38% of all certified projects!

[shadow siren]

looks like a slot machine

[dusty citrus]

So to fix this mess at this point what could I do?
Btw the solder on the blue board struggles to liquify, while on the green it's fine. Preheating at 100C (max temp I can reach on the printer) didn't make a difference

[vestal pier]

Does the blue board have a ground plane, or other feature that is sucking up all your heat?

[night crescent]

WE ARE LIVE! CircuitPython Day 2024 chat with Ladyada
https://youtu.be/2aiPvFoRHhE

https://adafruit.com
16% OFF SALE! CODE: CPD16
TODAY ONLY 8/16 12:00 AM EDT through 8/16 11:59 PM EDT
*SOME EXCLUSIONS MAY APPLY
*WHILE SUPPLIES LAST!

[dusty citrus]

I don't think? It's an orange pi 2w

[stiff brook]

have you guys seen the wokwi emulator

I just found out they pico with circuitpython on it

I am emulating my setup as best I can

[ebon dew]

Yes we have many helpers that use it sometimes to mock up projects to answer questions instead of breaking out a physical board. Wokwi is great. Hope they add support for the new RP2350 too.

[late fulcrum]

Been playing with Wokwi with a Jumperless breadboard

[ebon dew]

Even though I completely missed almost all the streams today had a chance to watch them on youtube. @balmy lotus and @hard estuary loved the idea of the year in review. Been a great year for added graphics and audio support. Hope to see you both again next year for another year in review.

[hard estuary]

Thanks! Glad you enjoyed it

[urban arrow]

By the way Paul, it was cool to see you in person. You have been so helpful (and patient) with me over the last year or so... Thank you!

[hard estuary]

Aw, thanks - appreciate you saying that.

[lament trout]

silly Q : just received an order from adafruit, some quantities on packed invoice are in blue, some are in red - anyone know what that means?

[cyan fable]

flux ai really good at reverse engineering?
like if i import random schematics or pcb, it will tell what is happening inside?

[ornate kernel]

I believe quantities in red are flagged so shipper/packer notices.

[glad ruin]

No. Ultimately schematics exist to express design intent. And no amount of glorified autocorrect will be able to help with that.

[ornate kernel]

I love that my entire order history still exists on adafruit.com. I've shared this a few times but just revised.
First order October 1, 2011
Most recent August 16, 2024

[ornate kernel]

After watching Charlyn's projects I was really hoping to get more black led acrylic but the 12" x 12" seems shipping prohibative. (No USPS to CAN)
I had a local sign shop laser cut a 24 neopixel ring size and the "waste" was a perfect fit for the 16 pixel ring.
Perhaps Adafruit could benefit from similar smaller sizes for shipping led acrylic? Worth it?

[rapid geode]

just to note, as far as i know, the neopixel rings are nested when made. so the 12? fits in the 16, which fits in the 24,

[urban arrow]

Cool! My first order was Jan 12, 2012 - a Boarduino kit w/ the chip! 😀

[late fulcrum]

Mine was April 1, 2008, also a Boarduino, and some bare Boarduino boards, along with a proto shield, motor shield, and TV-B-Gone

I just happen to have a pic of those Boarduinos getting assembled

[keen iris]

Anybody can help with what lights these are, needing to replace.

[fast ferry]

searching the markings, it appears to be a light source for a Eurolite TMH-13 intelligent light, and the marketing materials say it's a CREE 10W white LED. if you need to replace it, looks like you replace the whole board. the board seems to be available from a variety of European retailers.

[keen iris]

Ok thanks thought so. As the lights just popped off I ordered Neopixel and Dotstar 5050 as a replacement. Guess we will see what happens. Thanks again

[fast ferry]

pretty sure neither of those will work. the LED isn't an addressable LED, it only has power and ground running to it. addressable LEDs need data signals, they don't do anything with power alone AFAIK.

plus they won't be nearly bright enough to power a lighting instrument.

unless you're using that carrier board standalone for some other project and you want to add a microcontroller.

[keen iris]

I got what your saying

[wheat peak]

guys

is it possible to have FM composite video output with 10 KHz of bandwidth

[glad ruin]

Video? No. Static images, yes.

[wheat peak]

can you elaborate on that

[glad ruin]

640x480 color video running at 60Hz requires around 25MHz.

At 30Hz, it still requires ~12MHz.

[wheat peak]

what about 320x240 black-and-white video

[late fulcrum]

NTSC can cram 640x480 video into 4.5MHz or so. It's possible to run low rez B&W video through 1MHz or so

[whole jacinth]

look up SSTV (slow-scan television)

[glad ruin]

And that! I forgot the name.

Though like I said before I wouldn't necessarily consider that to be "video". More just a sequence of static images.

[late fulcrum]

It worked for the Moon landing

[whole jacinth]

for the Apollo missions NASA apparently used a 10fps SSTV mode that isn't one that's typically used in amateur radio (possibly too high-bandwidth to be legal)

[late fulcrum]

True. I think they had about 700kHz to play with

[night crescent]

330pm ET TODAY! Desk of Ladyada - PLEO Dinosaaaaaaauuur! https://youtu.be/7SAL4818ekc

Reviving a 2006 PLEO dinosaur toy found during a move. It's a labor of love with a known issue: short battery life. The original battery pack no longer charges, requiring a rebuild using tabbed AA batteries for soldering, as there's no spot welder available.

[hard halo]

I did not find public stocks to buy from Adafruit at NASDAQ

is it a fully private company?

[plain tusk]

indeed

[hard halo]

@late fulcrum

[late fulcrum]

That's not a thing I know. I don't work for or at AdaFruit. The About page on the site doesn't mention stock, nor does Bloomberg.

[fair summit]

yes, it is privately held

[night crescent]

WE ARE LIVE! Desk of Ladyada - PLEO Dinosaaaaaaauuur! https://youtu.be/7SAL4818ekc

[sonic mulch]

Wrong chat on my behalf lol

[tidal flare]

Haven't been contributing much lately due to working on a different project, but I'm happy to share that pull request has been merged!

[stray harbor]

I can't edit boot.py? Keep getting this error:

@Adafruit Camera ```

[late fulcrum]

It could be that the device reset and either reappeared with a different name or hadn't showed up again yet when you tried to save the file

[jagged citrus]

I finally got blinka running on the luckfox pico

[stiff brook]

any updates on getting a st7796s driver soon ?

I want to use my s2pi dev board

or how to flip the bit for output

as it is now the text is inverted/ backwords

https://github.com/DJDevon3/CircuitPython_ST7796S

but how to test

[dusty citrus]

i have a lovely 64x32 LED matrix panel from adafruit that is driven by an arduino mega, i was just wondering if I could change to my giga r1 wifi for more speed

[late fulcrum]

You might need level shifters

[dusty citrus]

oh right

[dusty citrus]

so, how do I display the ˚ symbol on my 64x32 matrix?

[stiff brook]

well the circuitpython driver did not work

crud

was hoping it would atlest make display work

nedd 7796S for this

it works

I had a pin nuber wrong

[stiff brook]

i can say my code is running slower then before

I think the display driver is not optimized

[fair summit]

The CIRCUITPY filesystem may be corrupted. Can you write any other files?

[stiff brook]

I wipred and nuked and reloaded

still slow

I am thinking as I changed displays and its not a asafruit_st7796S driver its not optimized

its a driver I found

but ti got the board I was hoping to use working

https://github.com/DJDevon3/CircuitPython_ST7796S/tree/main

only working driver for the display I have found

but its not setup in the drive for 5 wire its only setup for 4

[dusty citrus]

Hello friends

[stiff brook]

I need to look at the py for the adafruit 7789

as its works other then the text being wrong way

[stray harbor]

Yes I can write to the code.py file

[fair summit]

hmm. Well, CIRCUITPY may still be corrupted. You can erase and reformat it by doing this in the REPL:

import storage
storage.erase_filesystem()

Copy anything you don't have a backup of before doing this. Then see if writing to boot.py works again.

[stray harbor]

Still the same error :/

Failed to save 'boot.py': Unable to write file '/Volumes/CIRCUITPY/boot.py' (Unknown (FileSystemError): Error: EIO: i/o error, open '/Volumes/CIRCUITPY/boot.py')

[dusty citrus]

hello

[rapid geode]

https://www.youtube.com/watch?v=Jl1-bmN1b8o

cute

[fair summit]

What version of macOS are you using, and what editor are you using?

[stiff brook]

hey DanH how goes

[fair summit]

hi - I cannot help you with the display issue -- I'm not very familiar with that. are you still having trouble with the SI3531?

[stiff brook]

the display is working the driver is fine I had to add adafruit_framebuf

but yes the is code I followed a new math adafruit pushed at me for it but I think it broke the code

[storm cloud]

Anyone know if Adafruit will ever add reviews to their products? This stemma capacitive soil sensor is not very good and I wish I could have seen some user reviews. Doesn't need to be rank/star based... just comments maybe with some suggestions. Searching the old school forum is a pain.

[stiff brook]

brb doorbell

[fair summit]

we are investigating a better soil sensor: there are have been some Desk of LadyAda videos.

[stiff brook]

https://github.com/N4CNR/trailwave-ssb-144/tree/dev-1.8-text-only

we moved the code as it has a new name on the project

so the si5351 was changed as it was pointed I was doing it wrong and I tried to fix it. but its not pulling the si5351 singnal change on the scope

but the code for si is set for 144 mhz

[stiff brook]

You are in safe mode because:
CircuitPython core code crashed hard. Whoops!
Hard fault: memory access or instruction error.
Please file an issue with your program at github.com/adafruit/circuitpython/issues.
Press reset to exit safe mode.

wth

I found the crash issue the four wire for display

[fair summit]

this repo is private and not visible to me

[stiff brook]

1min I will fix it

ok fixed

sorry my nurse was here changing my woundvac

[fair summit]

Have you tried a simple test program that just does what's in set_frequency(), and then see if the output on a scope or frequency meter shows up?

I notice you have put the .mpy's in your repo. Is the .mpy the latest for the si5351 library/

[stiff brook]

yes

[fair summit]

yes q1 or q2 or both?

[stiff brook]

I will double check they are current 1 min'

making shure the libs are fully updated 1 min

[fair summit]

which Si5351A breakout are you using? Are you using one of ours: larger old style without STEMMA/QT connectors or new smaller one with with connectors?

[stiff brook]

no its the adafruit si5451 big board

not stem board

[fair summit]

and I forget which microcontroller board you are using. I can try to replicate

[stiff brook]

ok

if you use the main code and not the dev code it uses a st7735r

dev code is using a st7796S

as my st7735r died lastnight

[fair summit]

I don't want to use the whole program. I want to write a test program just to control the Si 5351A

[stiff brook]

ok

[fair summit]

so any bugs in the radio control logic don't affect the Si5351A

are you using an RP2040 board?

[stiff brook]

yes

[fair summit]

I don't have any of those SMA solder-on connectors.I'll use the smaller board for convenience.

[stiff brook]

ok

I am looking at moving to more of a stemma style setup

just not had money yet

ok well no rush . the diff in arduino vs circuitpythoon for the si chip makes things harder to lern

[fair summit]

I wired it up and tried your program. set_frequency() ignores its argument. I see 149.995 MHz on clock 0 and 13.552 on clock 1 on my scope. (it's a 100 Mhz Rigol but it's doing OK >100 MHz here).

This line

is using a float for the divisor. But the library is truncating that to an int, because 900/6 is 150 MHz, which is basically what 149.995 is.

so you need to use the configure_fractional to use a fractional divisor and a multiplier

[stiff brook]

ok

[fair summit]

there's probably some code in other radio projects (Arduino mostly, I assume) to help you calcualte the divisors and multipliers nicely

[stiff brook]

nope all the code I find is bacily cover the hf bands

but I will dig

thats what makes this hard

[dusty citrus]

so i was wondering, on your ds1307 how do i get the SQW pin to work?

[late fulcrum]

The underlying math should work anyway, just need to adjust the parameters to match the bands you want

[fair summit]

https://rfzero.net/tutorials/si5351a/
https://www.reddit.com/r/amateurradio/comments/lpdfpx/tutorial_how_to_find_the_exact_divider_ratios_fo/ and see some discussion of fast GCD algorithms in there

[stiff brook]

ok dan thinking this might be it

def set_frequency(frequency):
pll_frequency = frequency + IF_FREQUENCY
si5351.pll_a.configure_integer(36)
divider = int(900000000 / pll_frequency)
divider = max(6, min(divider, 1800))
si5351.clock_0.configure_integer(si5351.pll_a, divider)
si5351.outputs_enabled = True

but the ifFreq might be wring

IF_FREQUENCY = 26994100

bbiab

IF_FREQUENCY = 28700000 # Adjusted IF frequency to 28.7 MHz

this puts the freq closer to goal

[fair summit]

but you want to be ale to step through frequencies? Does using configure_integer give you good enough granularity?

Is this a transverter? I though your IF was constrained by some xtal filter or something.

[stiff brook]

no its a physical radio board

[fair summit]

so how can you vary the IF?

or will you design the IF filter to match?

[stiff brook]

filter should match

[fair summit]

I think https://rfzero.net/tutorials/si5351a/ will show you how to compute the fractional divisors

[stiff brook]

that math is a bit over my head but was reading it. this is my first got at the si chip

the section of the band is small

so its hard to grep it fully 144.000 to 144.500

[fair summit]

i think you could go through the math with sample values. Write some functions in Python and just try them in regular Python in the REPL. I have not done that myself. Also here is a tool to play with: https://rfzero.net/documentation/tools/si5351a-frequency-tool/

[night crescent]

particle + Adafruit – Here comes Adafruit: CRICKIT Robotics HAT, plus free Adafruit IO for all Tachyon backers - https://www.kickstarter.com/projects/particle-iot/tachyon-powerful-5g-single-board-computer-w-ai-accelerator/posts/4178338

[stiff brook]

danh I finally got some info and it looks like my new settings should tune

if_freqancy of 28.7 and the math should be fine for 144000 - 144500

the thin thats throwing things off is in normal si5351 you have your freqancy like 7000LLU and the code for the circutpython seems not to allow the LLU ot UUL setting

[fair summit]

i don't know about LLU and UUL. Is that in the datasheet, or could you point me to something?

[stiff brook]

1 min

si5351.set_freq((freq + (interfreq * 1000ULL)) * 100ULL, SI5351_CLK0);

but in circuitpython it says the ULL syntax is wrong

[fair summit]

ULL just means unsigned long long, which is unsigned 64-bit probablly. You can drop those from Python and it should work fine.

[stiff brook]

ok

[stiff bough]

Hi All, is there a micro that has four USB ports? Two will be hosts, and two will be HID clients

[night crescent]

WE ARE LIVE in BROOKLYN! SHOW AND TELL! https://youtu.be/mmqrncofoEU

[night crescent]

ASK AN ENGINEER 8/21/2024 LIVE! https://youtu.be/XORaTp2laJk

10% discount code, code is: fivealive ends at midnight NYC time - SHOP NOW! https://www.adafruit.com

[timid anvil]

Who wants to play NHL 20 on Xbox so I can get the online achievements before the servers shut down in Sept?

[stiff brook]

can circuitpython be setup to read simple screen text

basicly we are trying to fix the radio code so if voice enabled read screens

for bline users

blind

[ebon dew]

If you mean text to speech, I'm unaware of anyone doing that outside of perhaps on a raspberry pi with blinka. on a microcontroller for circuit python no.

[stiff brook]

ok

was looking to mimic this

but I will have to figure out a work around

[vestal pier]

? that has no image recognition capabilities

[ebon dew]

I'm not saying it can't be done I'm just unaware of anyone doing it in circuit python on a microcontroller. Would be an interesting project to tackle for synthio.

First you would have to get the speech synthesis to work.

[vestal pier]

if you've already got the text, then SPI interface to something like this:
https://www.mouser.com/new/epson-electronics-america/epson-s1v30120-ic/

SPI interface for a speech synthesis chip

[ebon dew]

Any text that might see on a displayio screen could be fed directly into the speech synthesizer... you wouldn't need character recognition... unless you're talking about converting something someone has drawn on the screen with capacitive/resisitive touch drawing?

I think there are a couple projects that use a camera for character recognition.

[tribal brook]

anyone know of a translation app that overlays the translation on the screen, similar to Google mobile translation app? Specifically for gaming?

[ebon dew]

Actually yes Liz did one that involves taking a picture and having chatgpt describe what is in the picture. I suppose you could do that using a picture showing a display screen with text on it.

You can use the bitmap_saver library to take screenshots.

[vestal pier]

look like adafruit used to have this:
https://www.adafruit.com/product/924

[ebon dew]

Didn't know that was a thing. Very cool.

[stiff brook]

ok using a dac board is there a way to pipe audio ina nd out over usb with the pico ?

has anyone done it

ok looks like a can wiht a little work

dac and adc board needed

[restive moon]

ada forums are down?

[fair summit]

the forums are occasionally being intermittent. The issue is being worked on.

[fair summit]

See https://blog.adafruit.com/2024/08/23/under-attack-please-stand-by-forums/

[jagged citrus]

WERE UNDER ATTACK

WAR

ok being serious why would anyone do this

[patent hemlock]

because people are [insert favorite derogatory term]

[somber spindle]

adafruit insulted the sensibilities of someone? someone wanted to test their new bot farm and thought adafruit would make a good target? someone is mad at cloudflare and adafruit is just caught in the crossfire? who knows

unless there's defacement or a manifesto posted somewhere, we're unlikely to find out

[patent hemlock]

are these [insert another favorite derogatory term] still called "script kiddies"? 😈

[somber spindle]

only if you're trying to be derogatory

[late fulcrum]

I remember when some cranks started spamming via a local ISP a friend of mine ran. He just pulled the wire out of the router (his ToS allowed him to do exactly this). The spammer became irate and tried attacking. They picked the wrong people to attack. My friend called in his buddies from Cisco, Juniper, Sun, etc. and they devastated the attackers.

[restive moon]

how does one run a local isp? did he put a router and was distributing wifi to his building or something?

[ebon dew]

My guess is when the Raspberry Pi's went on sale during AAE they tried to bot farm purchasing them, which didn't work, so retribution? The timing makes sense.

I think this happened the last time Adafruit caught someone trying to game the system to buy up more Pi 4's when those were being scalped. They got banned and weren't to happy about being caught.

[patent hemlock]

i only have one word for the perpetrators: feh

[somber spindle]

Based on the reference to Sun, this was at least 15 years ago, probably more. Might have been a local dial up ISP, which was a thing once upon a time.

[ebon dew]

After looking at the Adafruit Status and rummaging around for a couple minutes already came up with a JSON API example. 🤓

[restive moon]

well, i noticed that at one point adafruit and pimoroni had a feather enviro board, this means they had previously a good relationship. however this board seems discontinued, and i am curious if they both have still very good relationships since there doesn't seem like more products developed "togheter"
I also have several stuff from pimoroni, they make really cool stuff, they have very interesting pico "packs" (their version of "feather wings")
sadly it happears they don't go full circuit python and seem to rather enjoy mycropython

[fair summit]

we sell some and their stuff and they sell some of ours, and they help/want to get CircuitPython on their boards.

[restive moon]

yes, that's awesome, since i am in EU i bought a lot if ada products from them, it's easier (customs) and shipping is really fast since its basically nextdoor.
But what about more products developed together? i mean, i found about that enviro board, it seems made by both, curious about if there are more jointly made products like when both teams come toguether and make real awesome stuff! ❤️

[fair summit]

I don't think we would say if we were until the thing came out 🙂

[restive moon]

noticed you are a CircuitPython developer, mind if i ask something?
i was trying some stuff today, with some qt pi s3 is there like a design reason why there is no board.STEMMA_SDA to reference directly thoose pins?
i was trying to use those pins without i2c and i had to research on the gpios theese are connected to

[fair summit]

They are SCL1 and SDA1. You're right that a name like STEMMA_SDA would be better. I encourage you to open an issue to offer that suggestion.

[restive moon]

sure, i actually tought of that but i was assuming it was a design choice

[fair summit]

I don't think there was a good reason. There were some other boards like the Grand Central that had SCL1 and SDA1 and I think we just went with that.

[glad ruin]

Is it not named after the I2C interface in the chip?

[fair summit]

you can use any pins for any of the i2C peripherals, so I don't think that was the reason.

[hushed cave]

Got a galaxy z fold 6 and I cant put it down

Thought a folding phone was a silly gimmick until i realized how handy a foldable tablet is

[burnt tendon]

I'm still bent out of shape about the idea.

[patent hemlock]

🎵 "Know when to fold 'em..."

[dusty citrus]

I thought that the oppo 2021 X was pretty cool, but I never seen it in the market ☹️

[stiff brook]

any idea on when a adafruit driver for ssd1309 will come out

[fair summit]

you can use the ssd1305 driver

[stiff brook]

ok

[urban arrow]

My goodness - wanted to get some more done with CP today, BUT Hang 'Em High AND football are on. What a conumdrum, 😀

[hallow locust]

can you please send the code?

[ebon dew]

It’s currently up as a PR in the adafruit_requests circuit python library.

https://github.com/adafruit/Adafruit_CircuitPython_Requests/pull/204

[hallow locust]

thanks!

[fair summit]

let us know if SSD1305 does NOT work

[stiff brook]

ok the display will be here monday will let you know

[ornate kernel]

I've had no luck just now using either adafruit_ssd1305 or adafruit_displayio_ssd1305 with a SSD1309 display
The first lib gets OSError then RuntimeError: Then I get - No pull up found on SDA or SCL; check your wiring
Traceback (most recent call last):
File "code.py", line 18, in <module>
File "adafruit_ssd1305.py", line 236, in init
File "adafruit_ssd1305.py", line 108, in init
File "adafruit_ssd1305.py", line 152, in init_display
File "adafruit_ssd1305.py", line 200, in show
File "adafruit_ssd1305.py", line 254, in write_framebuf
OSError: [Errno 116] ETIMEDOUT

With displayio I get ValueError: SDA1 in use
Regardless if I use i2c = board.STEMMA_I2C() or i2c = busio.I2C(board.SCL1, board.SDA1)

I've scanned and can see the I2C device board.STEMMA_I2C() addresses found: ['0x3d']

EDIT: Apparently I can't format code either 🙂

[fair summit]

this sounds like a pin issue rather than a driver issue. Are you testing for N4CNR, or is this for your own project?

[ornate kernel]

This is my own project and I originally tried unsuccessfully with the 1306 library. When I heard you mention the 1305 might work I tried.

I tried replugging everything and using displayio.release_displays()

[ornate kernel]

Got a little further but still nothing displaying.
Circle of resetting, seeing I2C device, then it disappears.
board.STEMMA_I2C() addresses found: ['0x3d']
ValueError: Unable to find I2C Display at 3d
And even "No valid I2C bus found."
Got it to run without complaining eventually but nothing on the display

[neon phoenix]

I cant find my ftdi cable... I do have a keyspan usa-19hs usb to serial converter. Can i use it instead or is it a completely different animal?

[hallow locust]

is Adafruit going to be making a rp2350 trinkey

[neon phoenix]

Answer is no.

@hallow locust 🤷🏼‍♂️ probably. But id imagine engineering something that small is a descent challenge

[hallow locust]

they did it with the rp2040

https://www.adafruit.com/product/5056

[neon phoenix]

Are the 2350 and 2040 pin compatible? If not it has to be redesigned.

They are different packages, the rp2040 is a QFN56 the 2350 is a QFN60 so the pcb will have to be redesigned. Now, the cool features of the 2350 make it a very interesting chip and id expect theyre working on it or something very similar.

[dusty citrus]

I saw the definition, but I don't get how gnd, agnd, and pgnd may be different

I mean what does actually change?

[dusty citrus]

anyway, on more important stuff, can I request jlc to smt assembly parts that are not present in their libs, and so they need to be sourced elsewhere?

[stable kelp]

Is there uk plug for the 5V 4A barrel jack power supply?

[sharp nexus]

supsup

I want to ask: I try to connect port of ESP32 (for a led light underneath computer at night to blink) but it cant select the port

I tried connecting in XIAO seeed nrf52, Nrf52 DevKit and Feather M0+ (although that is for circuitpython)

in other words my computer cannot select the port and/or discover the device after connecting it

I tried everything, disconnecting, dislocating, repairing the system,...the LEDs keep shining but the port won't be discovered

[fossil dawn]

Maybe your USB cable can't transfer data

[sharp nexus]

no, it can, I use it in carplay

YOU ARE RIGHT!!!!

MY LOVE, MY LOVE!

12 hours trying to discover the thing my tunney money honey rawr

the whole code, everything!

[dusty citrus]

nermind, weird rules

[uneven basin]

There should have to be by law or some marking on a power only usb cable.

I mean mine do, but thats only damage from them being thrown across the room in anger.. so now I can reconize them, but it would be nice if they had like, built in markings

[plain tusk]

Once upon a time I thought about testing all of my cables and putting a small red rubber band or zip tie around the power only ones, but instead I've mostly just cannibalized them for building devices that need 5V power (only)

[chrome oasis]

Currently the Adafruit Ultimate GPS (https://thepihut.com/products/adafruit-ultimate-gps-breakout-with-glonass-gps-pa1616d-99-channel-w-10-hz-updates) is out of stock, and seemingly has been for months. However, I was searching and I found this GPS from DFRobot: https://thepihut.com/products/gravity-gnss-gps-beidou-receiver-module-i2c-uart - Looking at the datasheet, it seems to be the same specs. -165dBm sensitivity, 99 channels (33 tracking), 210 PRN channels, except the DFRobot GPS seems to support more satellite tracking types, along with I2C connections. For being £12 cheaper, and better in some regards, it almost seems too good to be true. Are there any issues? The only one I can think of is not having a Circuitpython library for it, but that isn't exactly a dealbreaker and I can always make one myself.
I can't decide which GPS to get, so could someone help compare?

On top of that, I just found the https://github.com/adafruit/Adafruit_CircuitPython_GPS library, so it should make my life far easier to actually use the GPS

[night crescent]

LIVE FROM BROOKLYN! Desk of Ladyada - RaaAWWwwwr PLEO battery repair 🦖🤖🔋 https://youtu.be/x7x36VKhoKE

[fast ferry]

the first dupont crimp of the day is always sacrificial

[burnt tendon]

It's kinda of a doo-punt.

[terse lava]

Just wanted to vent. I was on the ESP32 sub at reddit and to make the story as short as possible, I basically encountered a person who hates Adafruit because of nothing more than being a racist. Made me sad that even just goofing about with little microcontrollers and maker stuff, even there hate wants to creep in and ruin things. I of course reported the account to both reddit and the moderators of that forum. But I just felt compelled to tell someone, anyone. So here I am. OK thanks. Carry on.

[late fulcrum]

Ouch. That just underscores how lucky we are to have at least some havens that are free of such hate.

[neon phoenix]

OOh I've been messing around with esp32-wroom-32 dev board that i've had for years. I decided that I want to learn to code it strictly with the ESP-IDF and I'm kindof hating/loving that decision 😆

[weary fiber]

the ssd1305 libs from adafruit behave SUPER weird

using SPI, i found them wasting enormous amounts of time writing out the entire display buffer whenever a single pixel is changed

Also for some reason it ONLY uses HWSetPixel instead of SWSetPixel

Modifying HWSetPixel to write to a displaybuffer, keeping a copy of the previous “frame”s buffer, and only writing out changes sped it up tremendously

It seems like there’s code to do this in the library, but for some reason changing 1 pixel makes it think EVERY pixel’s changed

OH AND the underlying chip (if a monochrome display) lets you update 8 pixels at a time ‘cause setting a byte… the libs seem to ignore this? Adding that to my local copy was another huge speedup (I knowwwwww this should be in a github fork but I’m lazyyyy)

[stiff brook]

ok how to get ideas over to ada fruit we need a good oled like a 1.5 i2c oled with stemma connector

or a stemma board to plug onto i2c displays

I want to try and redo my project with all i2c so I can use a smaller 2040/2050 board

or a feather

ouch the stemma 128x128 is twice the cost of a normal i2c 1,5

[chrome oasis]

I can't tell if this GPS is the 99 channel version or the 66 channel version, the images show 2 different GPSs, and the description says both. has this gps been updated to have the better specs? https://thepihut.com/products/adafruit-flora-wearable-ultimate-gps-module the adafruit learn guide hasnt been updated to the new specs so i'm not sure. the one in the image is the PA1616D, which is the new one. the adafruit store page has 2 different specs and conflicting images as well.

[coarse walrus]

Hey everyone. I'm new here. I'm trying to write a guide for the Adafruit QT Py CH32V203 Dev Board with STEMMA QT . I find documents from Adafruit giving tips on how to write a good guide ... but I simply cannot find the button on the Adafruit website to get started writing the guide 😅

The closes thing I can find is the Create New Note button in the Playground:

But I cannot find a Create New Guide button anywhere ...

[charred lintel]

Why are you trying to write a guide for an Adafruit product ?

[coarse walrus]

Adafruit has so many beautiful guides. And I wrote already a guide for a product that is 99% similar to this one. So with a few tweaks, I can turn that into an Adafruit guide.

[charred lintel]

Guides are written, approved, and published by Adafruit employees, the learn system is not open to the public.

[coarse walrus]

Okay, I didn't know that.

[charred lintel]

You can publish notes in the Playground

[coarse walrus]

Okay

[charred lintel]

If you have a really good guide, you could email it to Adafruit, and see if they would like to publish it in the learn system ... but that is not very likely since the introduction of the Playground

And especially not the main guides for their own products.

[coarse walrus]

Okay

I'll write a note on the Playground then.

[coarse walrus]

https://adafruit-playground.com/u/kmulier/pages/using-the-adafruit-qt-py-ch32v203-dev-board-with-stemma-qt/edit

Done

[urban arrow]

Curious how some of ya'll may be "mounting" the Qualia S3 and attached large TFT displays with the 40-pin connector. There's not really a way to attach the TFT to anything (no holes), and gotta be careful with that sensitive connector. I just have the items sitting flat on a piece of cardboard... This setup is brand new to me, just got it. Thanks.

[hard estuary]

I bought the 3.4" screen and mounted it in one of the cases the Ruiz brothers designed: https://learn.adafruit.com/qualia-3d-printed-cases

[scarlet herald]

pre-view my pygame

[charred lintel]

You can get some ideas from the Adafruit project guides https://learn.adafruit.com/products/5800/guides

[somber spindle]

I bought a cable tester, tested everything I could find, marked them, then promptly covered up that box with some other stuff and started finding unlabeled cables again.

[round minnow]

One step up from the cardboard, I printed a deliberately minimal holder for board and display. By itself that holder is flimsy, but with board and display inserted, it provides enough support for 'breadboarding' type work.

[leaden pelican]

helo

'hello i'm new here!'

[urban arrow]

Qualia S3 - Swirly grid to the Rescue! (for now...) The display is propped at bottom by 2 posts, and several shorty posts underneath to hold it up from the plate. The plate sits up at 45 deg angle with a post behind it. Works for me.
rotation=90

[hard halo]

I am making a distortion pedal for my guitar 🙂

I plan to make the next one potenciometers in the place of all the resistors to see how the sound change

(Distortion pedals gives rock n' roll sound to the guitar, without it the guitar sounds like acoustic guitars)

[brave copper]

to make a pot fixed....do I short the wipe pin to one of the terminals and it's at fixed resistance?

[late fulcrum]

You may need to examine the circuit to make sure that you don't hook up a potentiometer in a place where it could cause damage if you dial it all the way down to zero (often you can use a series resistor to limit the current in such situations)

[late fulcrum]

Sorry, that reply was to Gbriel's question

your question is a little more subtle. The end-to-end resistance is already fixed, but the resistance from the ends to the wiper varies with the setting. Short circuiting the pot from one end to the wiper converts it from a potentionmeter to a variable resistor, but it's not a fixed resistor.

[brave copper]

well it needs to act like a on-off switch it's for spirit's ghostbusters walkie talkie mod I wish to do with a toy walkie talkie board, I'm turning two from prop toy that plays the hotel scene to working walkie talkie radios

[leaden pelican]

"sa"

:'sa'

afs