DevHeads IoT Integration Server•15mo ago

Hi folks, 46 year old software engineer by trade, leveraging some time off to tinker around with som

Hi folks, 46 year old software engineer by trade, leveraging some time off to tinker around with some embedded, iot, 3d printing, and other various projects

Ddetiber Hi folks, 46 year old software engineer by trade, leveraging some time off to ti...

ZacckOsiemo•10/7/24, 5:02 PM

Welcome @detiber

Where do you work/what do you work on currently?

segfaultdev.elf•10/7/24, 5:09 PM

anyone using siglent sds804x oscilloscope here?

ZZacckOsiemo Welcome @detiber 🙂 Where do you work/what do you work on currently?

detiberOP•10/7/24, 6:59 PM

Hi @ZacckOsiemo, my last gig was in the Open Source Program Office at Cisco and have spent a lot of time over the years working on Kubernetes and Infrastructure/Platform automation.

I've always been interested in alternative computing architectures, microcontrollers, and fpgas, but never "had the time" to really explode. Now that I have a few months off, I'm planning on taking the time to dive in head first.

I'm currently furiously 3d printing some organizational needs for my office, then I'm planning on blogging, recording, and streaming my misadventures in hardware

Camila_99$$•10/7/24, 8:39 PM

Hi @Ming A friend of mine was wondering:
How do you approach a situation where a build doesn't work as expected due to variables changing, skipping, or being overridden by included meta-layers? The build is technically successful, but the outcome isn't what we anticipated. How can we debug this kind of behavior and effectively track variable values and overrides?

For a concrete example, consider an SoC vendor meta-layer with two different versions, such as community and proprietary. We aim to include only specific parts of the vendor's meta-layer, but it's interfering with the development kit BSP layers.

Ddetiber Hi @ZacckOsiemo, my last gig was in the Open Source Program Office at Cisco and ...

ZacckOsiemo•10/8/24, 3:56 AM

Amazing keen to see you get dug into those architectures

CCamila_99$$Hi @Ming A friend of mine was wondering: How do you approach a situation where ...

Ming•10/8/24, 9:24 AM

Without knowing the specific details, the approach I would take is:

First:, run
bitbake-layers show-layersbitbake-layers show-layers
This will show you all the layers you have defined and more importantly, their priorities.

The next thing would be to run
bitbake -e <recipe>bitbake -e <recipe>
Where <recipe><recipe> is the image or recipe you are interested in. This will show you all you variables along with how and where they are set. This can be a large output, so I normally pipe it to file
bitbake -e my-production-image > image-env.logbitbake -e my-production-image > image-env.log

Now you can start searching that file for the variables you are interested in.

One thing I have found is that the quality of layers from vendors is very.... 'variable'! I have been know to create an intermediate repository from a vendor layer and then manually cherry-pick the bits I actually want. It is a pain, you you now have to manually keep the layers up to date, but it can be less effort than tearing your hair out trying to work out how to work around the vendor.

UUmesh Lokhande Sure, allow me some time. Will add answer to existing thread (https://discord.co...

Accur4te•10/8/24, 10:40 AM

@Umesh Lokhande I am unable to reply in the thread, but I have a question - here python you mean micro python right ,
for embedded systems ?

RRenuel Roberts when working with Zephyr OS for embedded systems, what do you find most benefici...

Dtynin•10/8/24, 10:53 AM

hey @Renuel Roberts , my response came in late but, I really appreciate its modular design and the wide range of drivers available. These features make it easy to create flexible and efficient solutions for various embedded applications, all while ensuring that everything runs smoothly in real time. hope this suffices.

AAccur4te @Umesh Lokhande I am unable to reply in the thread, but I have a question - here...

Umesh Lokhande•10/8/24, 11:59 AM

I mean to say generic Python, but it doesn't matter if you'd consider micro Python. Companies usually expect candidates to have problem-solving abilities irrespective of programming languages

UUmesh Lokhande I mean to say generic Python, but it doesn't matter if you'd consider micro Pyth...

Accur4te•10/8/24, 1:34 PM

Ok thanks

nour_oud•10/8/24, 4:17 PM

Friendly Reminder about Upcoming Event

Join us on Friday, October 11th, at 15:00 GMT for a deep dive into "Embedded or Not, Virtualization is Headed Towards a Device Near You." Explore how virtualization technology is transforming embedded systems, learn about the role of containers, and share your own experiences with the community!
See you there!
https://discord.gg/7YmCCMFe?event=1293245463713288233

Nnour_oud 🗓️ Friendly Reminder about Upcoming Event ||@Event Pings || Join us on Friday...

techielew•10/8/24, 5:08 PM

@Middleware & OS and @MCU, MPU & Firmware, do you build devices that leverage embedded virtualization? I'm interested to know how many "IoT devices" utilize virtualization these days.

Ttechielew @Middleware & OS and @MCU, MPU & Firmware, do you build devices that leverage em...

techielew•10/8/24, 5:09 PM

And if so, are you using OSs with AMP that abstract some of that complexity?

Ttechielew @Middleware & OS and @MCU, MPU & Firmware, do you build devices that leverage em...

melta101•10/8/24, 5:11 PM

Haven't used virtualization in production until now
Just learning purposes

Mmelta101 Haven't used virtualization in production until now Just learning purposes

techielew•10/8/24, 5:12 PM

What are the processors you've deployed on in production? I'm interested because I wonder a lot of time if the devs even know what they're deploying on these days?

techielew•10/8/24, 5:13 PM

WORA-style

Ttechielew What are the processors you've deployed on in production? I'm interested because...

melta101•10/8/24, 5:17 PM

If it's only processor.
I have worked with a Qualcomm processors, I can't remember the exact one but it was a application processor
And
NXP imx8

melta101•10/8/24, 5:18 PM

There are few FPGA which had processors, I worked with like AMD zynq series

Ttechielew WORA-style

melta101•10/8/24, 5:27 PM

This is related to specifically SDR for military
There is standard to follow called SCA(Software defined architecture) which

Mmelta101 This is related to specifically SDR for military There is standard to follow ca...

techielew•10/8/24, 5:27 PM

Is that the Zynq?

Mmelta101 This is related to specifically SDR for military There is standard to follow ca...

melta101•10/8/24, 5:29 PM

Which makes it compulsory to be cross compatible
Companies like Nordiasoft, CRC canada deal with by giving SW framework.

But goddamn, there are so costly!!

Ttechielew Is that the Zynq?

melta101•10/8/24, 5:30 PM

Could be implemented in any tbh
We were aiming with zynq but backed out due to financial constraints

Mmelta101 Could be implemented in any tbh We were aiming with zynq but backed out due to f...

techielew•10/8/24, 5:31 PM

What did you end up deploying on? Qualcomm?

Ttechielew What did you end up deploying on? Qualcomm?

melta101•10/8/24, 5:31 PM

The SDR?
It was deployed on a zynq 7000

melta101•10/8/24, 5:31 PM

And a infinion PSOC 6

melta101•10/8/24, 5:32 PM

client's requirements

Mmelta101 The SDR? It was deployed on a zynq 7000

techielew•10/8/24, 5:32 PM

Oh I thought you said you backed out of Zynq bc of financial constraints; you meant you backed out of the project.

Ttechielew Oh I thought you said you backed out of Zynq bc of financial constraints; you me...

melta101•10/8/24, 5:33 PM

Oh
I think I may have given the misinformation
We backed out of buying the SCA compliant SW framework

melta101•10/8/24, 5:33 PM

The project was government funded so we can't just simply back out

Mmelta101 Oh I think I may have given the misinformation We backed out of buying the SCA ...

techielew•10/8/24, 5:49 PM

Oh got it

Umesh Lokhande•10/9/24, 7:41 AM

Hi @kristof-at-embeetle if you don't mind may I know from where you've got the membrane overlay printed on Embeetle's tiny scarab? Also, which software do you use for the design

kristof-at-embeetle•10/9/24, 10:33 AM

Hi @Umesh Lokhande ,
I used https://www.jrpanel.com/
They have a great online system to enter your files.

The Beetle Board is open source. You can find the files for the graphical overlay here:
https://github.com/Embeetle/tiny-scarab/tree/main/graphic_overlay

GitHub

tiny-scarab/graphic_overlay at main · Embeetle/tiny-scarab

Tiny beetle board based on the CH32V003 10-cent chip. - Embeetle/tiny-scarab

kristof-at-embeetle•10/9/24, 10:33 AM

I used inkscape for the drawing, then exported to pdf.

RRenuel Roberts when working with Zephyr OS for embedded systems, what do you find most benefici...

Boss lady•10/9/24, 10:42 AM

Zephyr OS has become a popular choice for embedded systems due to its real-time performance, modular architecture, extensive hardware support, and built-in security features. Designed for time-sensitive applications such as industrial automation and medical devices, Zephyr ensures that tasks are executed predictably, meeting strict timing requirements.

I prefer it because of its modular design allowing developers to tailor the OS to fit specific project needs, keeping it lightweight and efficient for resource-constrained environments. Zephyr also supports a wide range of hardware architectures like ARM, RISC-V, and x86, offering flexibility for multi-platform projects. Through its use of the Hardware Abstraction Layer (HAL) and device trees, it simplifies hardware configuration without code changes.

Also it takes security as a core feature, with integrated support for secure boot, trusted execution environments, and memory protection, making it a strong option for IoT and connected devices. Zephyr also includes cryptographic libraries and network security features, ensuring safe communication over networks.

If you would like to know more about zephyr you can check out the Zephyr Project GitHub repository and the Zephyr documentation. You can also access the Zephyr OS PDF guide for a comprehensive overview of its capabilities.

https://github.com/zephyrproject-rtos/zephyr
https://docs.zephyrproject.org/latest/index.html
https://docs.zephyrproject.org/latest/_downloads/zephyr_overview.pdf

GitHub

GitHub - zephyrproject-rtos/zephyr: Primary Git Repository for the ...

Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures. - zephyrproject-rtos/zephyr

Dtynin•10/9/24, 4:16 PM

Hey guys, what do you think about the future of Open-source contributions in embedded systems. Are corporate interests slowly undermining the true spirit of open-source contributions in embedded systems? Can big companies and the open-source community ever find common ground, or are we heading toward inevitable conflict over control and innovation? @Middleware & OS and @MCU, MPU & Firmware

DDtynin Hey guys, what do you think about the future of Open-source contributions in emb...

ke7c2mi•10/9/24, 4:21 PM

Flip that round - open source has over time filled more and more of the niche. Things were far more proprietary a decade ago.

DDtynin Hey guys, what do you think about the future of Open-source contributions in emb...

ChoRam•10/9/24, 4:22 PM

I want to know why this question now? Has anything happened in recent times?

barafael•10/9/24, 4:23 PM

I strongly believe and also weakly hope that open source software systems are and will be simply better in many metrics.

CChoRam I want to know why this question now? Has anything happened in recent times?

Dtynin•10/9/24, 4:37 PM

not per say tho...but I hope the future of open-source contribution in embedded system should be community driven as opposed by some folks that thinks otherwise tho

CChoRam I want to know why this question now? Has anything happened in recent times?

techielew•10/9/24, 5:01 PM

Watch what has happened/is happening/will happen with Zephyr

techielew•10/9/24, 5:02 PM

Linux Foundation dues aren’t cheap at membership levels that matter

Ttechielew Watch what has happened/is happening/will happen with Zephyr

ChoRam•10/9/24, 5:18 PM

Zephyr is FOSS right? Is it becoming closed source?

DDtynin not per say tho...but I hope the future of open-source contribution in embedded ...

Ming•10/9/24, 6:12 PM

Looking at things like the Linux Kernel....
The most commits to the kernel come from corporations (Microsoft is actually one of the biggest contributors to the Kernel!).
A lot of the kernel maintainers are employed by corporations.

However, none of that stops individuals from contributing their bits to the kernel.

I see it as a positive that enterprises can commit things that improve software for their use case and as is the spirit of open-source - everybody benefits.

If an enterprise tried to block commits to an open-source project, then with the 'cancel culture' the bad PR would be bad for their bottom line and so very quickly counter-productive.

CChoRam Zephyr is FOSS right? Is it becoming closed source?

Ming•10/9/24, 6:53 PM

Zephyr is run by the Linux Foundation so is not going closed source anytime soon!

Roshan Baig Mogal•10/9/24, 7:00 PM

Hi Community ! Myself Mogal Roshan Baig , done Bachelors in Computer Science and Engineering currently working to enhance my skills on embedded systems , and Iam very much interested in open source projects. Any help or suggestion would be appreciated. Iam totally beginner please suggest me some new opensource projects.
Thanks.

RRoshan Baig Mogal Hi Community ! Myself Mogal Roshan Baig , done Bachelors in Computer Science and...

Marvee Amasi•10/10/24, 6:32 AM

Hi Mogal, nice for you to join us

. Since you are starting out in embedded systems and want to get into open source projects, I will suggest that you look into some beginner friendly platforms like Arduino, ESP32, or STM32. They have active communities and plenty of projects to contribute to. You can explore open source repositories on GitHub related to IoT, robotics, or home automation great places to start

matthewflynn_•10/10/24, 8:30 AM

Hi there. I've been working as a .net dev and want to use the Iot.Devices.ImuIot.Devices.Imu library to calibrate and use a acceleormeter on a project I am building.

I have had issues with a bug using an MPU-6050MPU-6050. I went to buy another in case it was a dud and was sent a Adafruit TDK InvenSense ICM-20948 9-DoF IMU (MPU-9250 Upgrade) (STEMMA QT / Qwiic)Adafruit TDK InvenSense ICM-20948 9-DoF IMU (MPU-9250 Upgrade) (STEMMA QT / Qwiic) as they were out of stock.

I've tried writing my own class to get the data and calibrate but I my readings seem to really vary in the sample set on the Gyro side?

Does anyone know where I can find a details of the unit so I can make sure I'm reaidn ghte right data? (I can share my code if anyone wants to look).

Mmatthewflynn_Hi there. I've been working as a .net dev and want to use the `Iot.Devices.Imu` ...

Camila_99$$•10/10/24, 9:42 AM

Hi @matthewflynn_ welcome!
I’d be happy to take a look at your code to help pinpoint the calibration issues. For the ICM-20948, you might want to check the specific register map and data sheet to ensure you're reading the right values, as it differs a bit from the MPU-6050. Could be helpful to review your Gyro calibration routine too.

Mmatthewflynn_Hi there. I've been working as a .net dev and want to use the `Iot.Devices.Imu` ...

ZacckOsiemo•10/10/24, 10:38 AM

do you have a way to test on peek into what the hardware is doing, i.e an oscilloscope or a Logic analyser?

CCamila_99$$Hi @matthewflynn_ welcome! I’d be happy to take a look at your code to help pin...

matthewflynn_•10/10/24, 10:57 AM

Hi there thank you for taking the time - I added the code to post in code review - if you neeed anything else let me know

I've been working on it further and trying to stabalise the results but to no avail.

Hi folks, 46 year old software engineer by trade, leveraging some time off to tinker around with som

Similar Threads

Similar Threads

Similar Threads