DevHeads IoT Integration Server•15mo ago

using data from freq spectrum

Mmelta101 using data from freq spectrum

ZacckOsiemo•10/28/24, 4:32 AM

How were you using that data? Can you be as explicit as you can manage please?

melta101OP•10/28/24, 4:35 AM

so every countries RADAR's has its signature
but it is Obfuscated.
it is easy to detect RADAR. the problem comes with finding which RADAR is friend or foe.

melta101OP•10/28/24, 4:35 AM

its a application of classification

Mmelta101 its a application of classification

ZacckOsiemo•10/28/24, 4:37 AM

Would you call this AI or ML

ZZacckOsiemo Would you call this AI or ML

melta101OP•10/28/24, 4:37 AM

i mean
ML is a subset of AI

Mmelta101 so every countries RADAR's has its signature but it is Obfuscated. it is easy to...

ZacckOsiemo•10/28/24, 4:38 AM

at some point this is just a memoization problem. A tasty one at that

melta101OP•10/28/24, 4:38 AM

it would mostly come into ML

Mmelta101 i mean ML is a subset of AI

ZacckOsiemo•10/28/24, 4:38 AM

where do you think the edge between AI and ML lies?

ZZacckOsiemo at some point this is just a memoization problem. A tasty one at that

melta101OP•10/28/24, 4:38 AM

not really
the signals arnt ideal in this scenario

Mmelta101 not really the signals arnt ideal in this scenario

ZacckOsiemo•10/28/24, 4:39 AM

but the signatures?

Mmelta101 not really the signals arnt ideal in this scenario

ZacckOsiemo•10/28/24, 4:39 AM

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

ZZacckOsiemo but the signatures?

melta101OP•10/28/24, 4:40 AM

as the signal deteriote. the signature will as well
so there is a need to upsample/reconstruct it.

Mmelta101 as the signal deteriote. the signature will as well so there is a need to upsamp...

ZacckOsiemo•10/28/24, 4:41 AM

Oh nice a little mix of signal processing as well

Mmelta101 as the signal deteriote. the signature will as well so there is a need to upsamp...

ZacckOsiemo•10/28/24, 4:41 AM

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

melta101OP•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?

melta101OP•10/28/24, 4:43 AM

yep

melta101OP•10/28/24, 4:43 AM

but a lot of multiple steps in between

Mmelta101 but a lot of multiple steps in between

ZacckOsiemo•10/28/24, 4:43 AM

I can imagine

melta101OP•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

ZacckOsiemo•10/28/24, 4:44 AM

give me an example to look at please

melta101OP•10/28/24, 4:44 AM

quite handy

ZZacckOsiemo give me an example to look at please

melta101OP•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

melta101OP•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🙏

ZacckOsiemo•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...

melta101OP•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...

ZacckOsiemo•10/28/24, 4:52 AM

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

ZacckOsiemo•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

melta101OP•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...

ZacckOsiemo•10/28/24, 4:54 AM

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

ZacckOsiemo•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?

melta101OP•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

melta101OP•10/28/24, 4:57 AM

1 sec
lemme share it here

melta101OP•10/28/24, 4:57 AM

if i fing

melta101OP•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

ZacckOsiemo•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...

ZacckOsiemo•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