DevHeads IoT Integration Server•15mo ago

Some version of an inverse fourier or am I far away?

ZZacckOsiemo btw a side note you do a lot of defence work, which I find really cool

melta101•10/28/24, 4:42 AM

Thanks man.
i love def tech
Would have been in this industry if not for the pay.

ZZacckOsiemo Some version of an inverse fourier or am I far away?

melta101•10/28/24, 4:43 AM

yep

melta101•10/28/24, 4:43 AM

but a lot of multiple steps in between

Mmelta101 but a lot of multiple steps in between

ZacckOsiemoOP•10/28/24, 4:43 AM

I can imagine

melta101•10/28/24, 4:43 AM

ADI gives a lot of these in a single chip

Mmelta101 ADI gives a lot of these in a single chip

ZacckOsiemoOP•10/28/24, 4:44 AM

give me an example to look at please

melta101•10/28/24, 4:44 AM

quite handy

ZZacckOsiemo give me an example to look at please

melta101•10/28/24, 4:48 AM

https://www.analog.com/en/products/ad9081.html#part-details
Havnt personally used it, but it was one of the best option out there

melta101•10/28/24, 4:48 AM

rest everything we leave to the allmighty FPGA to carry us from there

Mmelta101 rest everything we leave to the allmighty FPGA to carry us from there🙏

ZacckOsiemoOP•10/28/24, 4:49 AM

I'm scared of FPGAs, I like the idea but I feel it's going to be so painful to learn.

ZZacckOsiemo I'm scared of FPGAs, I like the idea but I feel it's going to be so painful to l...

melta101•10/28/24, 4:51 AM

oh it is.
trust me
i am also not that fond of FGPA due to the learning curve. but i keep myself informed and learnt a bare min.
Plus AMD has OpenAMP support for its Zynq series which is quite helpful

Mmelta101 oh it is. trust me i am also not that fond of FGPA due to the learning curve. bu...

ZacckOsiemoOP•10/28/24, 4:52 AM

If I wanted a nice entry level FPGA where would I start

ZacckOsiemoOP•10/28/24, 4:52 AM

After Blink on FPGA what do I do, what is an entry level FPGA project?

ZZacckOsiemo If I wanted a nice entry level FPGA where would I start

melta101•10/28/24, 4:53 AM

i am not the right person, who could suggest this lol
i personally chose the Zynq 7000s series due it having ARM cores along with FPGA.

Mmelta101 i am not the right person, who could suggest this lol i personally chose the Zyn...

ZacckOsiemoOP•10/28/24, 4:54 AM

I may choose the same, just because I know someone I can ask questions.

ZacckOsiemoOP•10/28/24, 4:54 AM

I know another guy im my city that works with FPGAs but he is so deep in defence. I think you need a tank to get to the guy

ZZacckOsiemo After Blink on FPGA what do I do, what is an entry level FPGA project?

melta101•10/28/24, 4:57 AM

Actually
related to roadmap
i found a nice resource
but couldnt complete and let it in midway due to work

melta101•10/28/24, 4:57 AM

1 sec
lemme share it here

melta101•10/28/24, 4:57 AM

if i fing

melta101•10/28/24, 5:08 AM

yep
atlast got it!
https://github.com/m3y54m/FPGA-ASIC-Roadmap

GitHub

GitHub - m3y54m/FPGA-ASIC-Roadmap: A roadmap for those who want to ...

A roadmap for those who want to build a career as an FPGA / ASIC Engineer - m3y54m/FPGA-ASIC-Roadmap

Mmelta101 yep atlast got it! https://github.com/m3y54m/FPGA-ASIC-Roadmap

ZacckOsiemoOP•10/28/24, 5:49 AM

thank you, I didn't realize he also made a FPGA road map

segfaultdev.elf•10/28/24, 9:51 AM

when you build a custom dev board what things you guys consider share some knowledge with me please.
For example I want to make a custom stm32 board with on board mpu6050 and can transceiver now as for powering up the mcu which is really staright forward due to st's
application note but when it comes to providing power for the ADC where I struggle always I don't know what is the exact value of noise that my board can produce and what is the exact
filtering components i should use for example: LRC, RC, RL, Ferrite bead filters

matthewflynn_•10/28/24, 9:51 AM

Hi all - I've been looking at adding controlable LED lights to a project I have. I have 8x 1m lengths of these

https://thepihut.com/products/flexible-rgb-led-strip-neopixel-ws2812-sk6812-compatible-30-led-metre

Which I daisy chain together using these;

https://thepihut.com/products/3-pin-led-strip-connectors-strip-to-strip-10mm

However I need to inject power about 1/2 way due to the voltage drop? Can anyone recommend a strip connector that would acccept the additional 2x wires? As I think if I start soldering in the addtional waires to the ones above they wont close or will break?

Any suggestions please?

The Pi Hut

Flexible RGB LED Strip (NeoPixel/WS2812/SK6812 compatible) - 30 LED...

Part of our Illuminate range of LED strips and accessories, these flexible RGB LED strips have 30 RGB LEDs per metre giving you a good amount of blinky for your project! Great for advancing from basic LEDs, learning how to code, lighting projects, art and many many more uses. They use WS2812 LEDs which are the same typ

The Pi Hut

3-pin LED Strip Connectors - Strip to Strip (10mm)

These 3-pin 'strip to strip' LED strip connectors provide a secure and solder-free way to join our Illuminate 3-pin WS2812 LED strips together for your project. Simply cut your strips at the metal connection section, place them into each end then snap the connector down. We also offer matching 3-pin connectors in a str

Ssegfaultdev.elf when you build a custom dev board what things you guys consider share some knowl...

ZacckOsiemoOP•10/28/24, 10:11 AM

@hemalchevli @Afuevu could you help here please l?

Ssegfaultdev.elf when you build a custom dev board what things you guys consider share some knowl...

Hemal•10/28/24, 11:08 AM

For dev board design, here are some of the points that come to mind

make sure you breakout all the pins of MCU on the header and label them clearly.
- I'd also have multiple 5V and 3V3 pins for connecting various modules.
Must have a Reset button
One or more LED connected to a GPIO, add RGB if there are lot of GPIO on the MCU.
accessible programming interface, preffereable on edge of board rather then in middle
4x Mounting holes. I'm not sure of your board shape, 3 might do but 4 is better.
User button
Solder jumpers or normal ones for boot configuration.

Now when you ask for powering ADC, I assume you mean reference power supply for the STM's ADC.
AFAIK there is an internal Vref. You could possible use that.

segfaultdev.elf•10/28/24, 11:11 AM

Not the VREF+ it is VDDA which I am suffering for

segfaultdev.elf•10/28/24, 11:12 AM

if my VDDA is stable enough i can just connect it with VREF

Ssegfaultdev.elf Not the VREF+ it is VDDA which I am suffering for

Hemal•10/28/24, 11:53 AM

do you know the ripple on the VDDA? may be you could start looking at that and simulate some values in LT spice for the filters

te0•10/28/24, 3:18 PM

has anyone tried socket communication on ESP32s without connecting them to any AP?

te0•10/28/24, 3:19 PM

i mean is there a way i could only set the network up without connecting to any wifi and then perform basic socket communication?

te0•10/28/24, 3:19 PM

if so , i only need an example

te0•10/28/24, 3:19 PM

cant find one

Tte0 i mean is there a way i could only set the network up without connecting to any ...

SageBoy•10/28/24, 9:19 PM

You can generate a hotspot (softAP) with esp and use it

MMing I bought one of these to help out when I volunteer at our local _Repair Café_ - ...

techielew•10/29/24, 12:32 AM

Is there a link to your repair cafe?

LMtx•10/29/24, 9:06 AM

What is your take on the topic of the Industrial Metaverse? Have you participated in actual Industrial Metaverse deployment?

1730189409744.pdf3.4MB

Ttechielew Is there a link to your repair cafe?

Ming•10/29/24, 11:38 AM

There is no link - it is something organised by our local town (https://www.ville-durtal.fr) They only post in the local facebook group.

Site de la commune de Durtal

Page d'accueil - Site de la commune de Durtal

Dtynin•10/29/24, 4:56 PM

@here Hey guys what are your thoughts on the recent development growth in the industry.

BCIs have really advanced recently, especially with Neuralink working on implanting chips in animals and gearing up for human trials. This recent growth holds a lot of promise for helping people with disabilities regain mobility, speech, or sight which is a welcome development. But it also opens the door to some pretty unsettling possibilities, and it got me wondering: Could companies eventually access, manipulate, or even profit from our thoughts and memories?

And I'm left to ask, should BCIs like Neuralink be regulated to protect our minds and personal data, even if that means slowing down potential health benefits? It’s a big bone to chew between innovation and safeguarding our privacy.
@MCU, MPU & Firmware

DDtynin @here Hey guys what are your thoughts on the recent development growth in the in...

Ming•10/29/24, 5:09 PM

With the technology in its current state - it is more about getting signals into the brain/control system rather than extracting data out - so I don't see much in the way of privacy issues at the moment

However with implantables, I would definitely worry about the security side:

Being able to disrupt those signals (potentially rendering them useless and the user disabled again)
Being able to alter those signals (giving spurious inputs to vision or motor control could be quite dangerous)
Overloading the input signals (what would happen to the brain if an implant produced too much current?)

Personally, I'm not too worried about people profiting from my thoughts as
(a) I'm a consultant - I sell my thoughts all the time
(b) If even I can't understand my own thoughts half the time, what hope would a third party have!

LLMtx What is your take on the topic of the Industrial Metaverse? Have you participate...

Umesh Lokhande•10/29/24, 6:47 PM

Interesting report! statistic caught my attention was 60%+ non-adopters concern about ROI, finance, and cyber security risk.

MMing With the technology in its current state - it is more about getting signals into...

Dtynin•10/29/24, 10:41 PM

oh I see, you just spoke your mind from your point of view, selling your thoughts might be fine by you at the moment, but trust me, there will come a time where you thoughts would be harvested for personal gains without permission form you, and you profiting nothing from it. @Ming

Marvin•10/30/24, 2:54 AM

I feel like the show Black Mirror gave us a blueprint of what exploitation of technology will look like in society.
But I am not purely pessimistic on the subject I am excited about benefits they'll bring to humanity. Just scared some big pharma company will slap a subscription on my speech leaving me speechless from time to time for late payments.

Oh and when the time comes for data out... I imagine they'd train some interesting models.

Kke7c2mi I don't think it's particularly intuitive and I think it's quite a steep learnin...

techielew•10/30/24, 6:04 AM

@ZacckOsiemo @ke7c2mi @Phoenix — I'm back (been back) from Embedded World North America and I wanted to pick up the conversation about the remote kit/linux node.

You guys still interested in project'ing this?

Kke7c2mi I don't think it's particularly intuitive and I think it's quite a steep learnin...

melta101•10/30/24, 6:24 AM

As per me,
Zephyr will be really helpful for OpenAMP specially.
as many contributer are trying to sync the AMP SoC and boards dts between linux and zephyr to give a seemless flow while developing.

Ttechielew @ZacckOsiemo @ke7c2mi @Phoenix — I'm back (been back) from Embedded World North ...

ke7c2mi•10/30/24, 2:30 PM

Potentially yes, I have some spare time for the next few weeks between jobs - I don't want to make a hard commitment in case I end up going feral into the hills for a couple of weeks, but I'm happy to help in principle

Mmelta101 As per me, Zephyr will be really helpful for OpenAMP specially. as many contribu...

ke7c2mi•10/30/24, 2:33 PM

That's neat - on my never ending to do list is to make some basic zephyr app the exposes I2C/SPI/GPIO and a few other things and provides some USB / ethernet intertface so that any board supporting zephyr can become an instant lab tool

I keep thinking about it and doing nothing other than thinking I want it already .. I have a nucleo board on my desk that I wish I was 5 lines of python away from driving some QSPI data for another project

ke7c2mi•10/30/24, 2:34 PM

Consider it should be possible to make some abstract application against the HAL that does this, and it should be possible to essentially use the board descriptors to infer what you want there and have the build system spit out a self describing logic analyser / test device

Kke7c2mi That's neat - on my never ending to do list is to make some basic zephyr app the...

melta101•10/30/24, 3:21 PM

I have recently raised a PR for a I2C driver for TI
Just started with SPI. mostly will move to mailbox after that.

Kke7c2mi Potentially yes, I have some spare time for the next few weeks between jobs - I ...

ZacckOsiemoOP•10/30/24, 5:21 PM

Bruh! ferral in the hills?