DevHeads IoT Integration Server•14mo ago

For those of you attending (or not attending) today's Engineering Hour on PID Control with FreeRTOS,

For those of you attending (or not attending) today's Engineering Hour on PID Control with FreeRTOS, Zacck has posted example code to our Git: https://github.com/DevHeadsCommunity/FreeRTOS_samples/pull/1

DevHeads_EH__031124.pdf1005.96KB

GitHub

Implementing a PID controller for PWM using FreeRTOS by zacck · Pul...

Mixed signal means feedback systems. How do we handle this in an RTOS-based system and what tools are at our disposal?
In this Engineering Hour session, professional developer Zacck Osiemo takes us...

Ttechielew For those of you attending (or not attending) today's Engineering Hour on PID Co...

techielewOP•11/3/24, 3:38 PM

If you're working on/about to start a FreeRTOS-based control system and willing to share your progress here in the DevHeads community, fill us in on your project plan—we'll send one of you an STM32F4 eval kit you can use with Zacck's code to jumpstart your design: https://www.mouser.com/ProductDetail/STMicroelectronics/STM32F407G-DISC1?qs=mKNKSX85ZJejxc9JOGT45A%3D%3D&srsltid=AfmBOoq3GCQlGFTDbunEbAVI0Pa6NTN62nMMUxxOLfo8lww2Aiq8nntE

Mybear•11/3/24, 4:18 PM

hello how can i found datasheet B139KAN01.0 3300×2200 LCD LED

Renuel Roberts•11/3/24, 4:33 PM

hello, i was a bit late for todays engineering hour but i have a question for @ZacckOsiemo when using huge models how would you approach quantizing or pruning the model, and what trade-offs might this introduce in terms of detection accuracy for low boards with low ram capacity esp32, etc?

futurespacer•11/3/24, 4:34 PM

Hi everyone, my name is phinic, an electrical engineer speacialized in instrumentation and control. For my final year project I did a home automation system( I call it my blueprint) to automate the simplest of appliances and then uprgade from that it more complex automations in an embedded system. The first half is complete.

RRenuel Roberts hello, i was a bit late for todays engineering hour but i have a question for @Z...

ZacckOsiemo•11/3/24, 4:36 PM

Ah that's something we can explore.

ZZacckOsiemo Ah that's something we can explore.

Renuel Roberts•11/3/24, 4:36 PM

looking forward to ur insight

RRenuel Roberts looking forward to ur insight

ZacckOsiemo•11/3/24, 4:37 PM

I will experiment with some models this week and we can see what we and will report here.

ZZacckOsiemo I will experiment with some models this week and we can see what we and will rep...

Renuel Roberts•11/3/24, 4:38 PM

that would be nice would be expecting u can try out the ollama models

Ffuturespacer Hi everyone, my name is phinic, an electrical engineer speacialized in instrumen...

ZacckOsiemo•11/3/24, 4:39 PM

whats the next half

Renuel Roberts•11/3/24, 4:39 PM

some times after pruning the model it starts to malfunction a bit and doest implement the task it was ment for

RRenuel Roberts that would be nice would be expecting u can try out the ollama models

ZacckOsiemo•11/3/24, 4:39 PM

perhaps you can also experiment and let us see what to do.

RRenuel Roberts some times after pruning the model it starts to malfunction a bit and doest impl...

ZacckOsiemo•11/3/24, 4:40 PM

what sort of malfunction are you seeing?

Cespost•11/3/24, 4:42 PM

Hey new here :)

ZZacckOsiemo whats the next half

futurespacer•11/3/24, 4:44 PM

the current system is one system doing upto 5 automations; the next stage is to modularize the automations in individual, pcb designed embedded system and specialize on automation that don't already have other existing solutions e.g ( as per your example using an AC intead of doing away with the fan regulator- the reason i went straight to automating the fan is because more people already own this and it would be easier and simpler to replace )

Ffuturespacer the current system is one system doing upto 5 automations; the next stage is to ...

ZacckOsiemo•11/3/24, 4:46 PM

Ah are you trying to make a business out of this? Well you can still maintain a proof of concept using the fan then later when in applicable market you can use AC

ZZacckOsiemo what sort of malfunction are you seeing?

Renuel Roberts•11/3/24, 4:49 PM

like the model no longer respond acuately when initialized and gives an unexpected responce, for instance if the model was used to automate predictive maintenance for small motors it tend to return random feedbacks not according to its trained data and they are most inacurate but if the full model is ran with out pruning its 90% accurate most of the times

RRenuel Roberts like the model no longer respond acuately when initialized and gives an unexpect...

ZacckOsiemo•11/3/24, 4:50 PM

could it be a problem with your training or is it overflowing memory and returning garbage what are you doing to cause this?

ZZacckOsiemo Ah are you trying to make a business out of this? Well you can still maintain a ...

futurespacer•11/3/24, 4:52 PM

just borrowing concepts from industrial automations to home automations without making things too complicated hence the need for PID control since specializing in one automation at a time means i can do more than just a closed loop system

Ffuturespacer just borrowing concepts from industrial automations to home automations without ...

ZacckOsiemo•11/3/24, 4:53 PM

Ah thats a good way to look at it, well in that case do the fan control then later you can move to a full controller

ZZacckOsiemo Ah thats a good way to look at it, well in that case do the fan control then lat...

futurespacer•11/3/24, 4:56 PM

alright thank you, the other automations are light control, humidity control, ventilation control, curtain control, and access control(all in one embedded system)

ZacckOsiemo•11/3/24, 5:01 PM

here you go @wafa_ath https://www.realpars.com/blog/pid-tuning

PID Tuning | How to Tune a PID Controller - RealPars

Let’s discuss what the PID parameters are and how they are used.

ZZacckOsiemo here you go @wafa_ath https://www.realpars.com/blog/pid-tuning

wafa_ath•11/3/24, 5:31 PM

Thank you, i appreciate it

Ala Hassine•11/3/24, 7:21 PM

@ZacckOsiemo @techielew i have project based in board stm32f4 dicovery and i should be management modules (dht22,lcd_i2c,rfid rc522,etc) in real time using FreeRTOS ... i use in this project stm32cubemx and iar embedded workbench

AAla Hassine @ZacckOsiemo @techielew i have project based in board stm32f4 dicovery and i sho...

ZacckOsiemo•11/3/24, 7:25 PM

Nice! tell us more about this project, please.

Ala Hassine•11/3/24, 7:42 PM

ok no problem ... The goal of this project is to develop a home automation system for controlling and monitoring various household elements. The system will manage common household devices and detect essential parameters, such as humidity, temperature, and RFID tag presence, allowing for actions like controlling lights or opening and closing doors with a motor. Additionally, the system will be managed in real-time using FreeRTOS to ensure efficient and timely response to user commands and environmental changes.

AAla Hassine ok no problem ... The goal of this project is to develop a home automation syste...

techielewOP•11/3/24, 9:45 PM

You asked about FreeRTOS bringup on this before. What issues have you been experiencing in this setup?

techielewOP•11/3/24, 9:45 PM

(if any)

rahulroy_7•11/4/24, 8:05 AM

@Ala Hassine for the monitoring data you can use UART based display module also?

rahulroy_7•11/4/24, 8:08 AM

Ttechielew You asked about FreeRTOS bringup on this before. What issues have you been exper...

Ala Hassine•11/4/24, 3:30 PM

My problem is that I have no background on FreeRTOS with stm32.

Rrahulroy_7 @Ala Hassine for the monitoring data you can use UART based display module also...

Ala Hassine•11/4/24, 3:31 PM

i use interface graphic based in C++/Qt

AAla Hassine My problem is that I have no background on FreeRTOS with stm32.

ZacckOsiemo•11/4/24, 4:03 PM

what part of that combination is problematic for you?

AAla Hassine My problem is that I have no background on FreeRTOS with stm32.

Umesh Lokhande•11/4/24, 5:34 PM

Hi @Ala Hassine Here's dedicated Engineering Hour session about using FreeRTOS with STM32CubeIDE timestamp 35:19. Its detailed and step-by-step guide https://www.youtube.com/watch?v=reX6S8x94eM. I'm sure this video will answer otherwise we'll be happy to help you.

ZZacckOsiemo what part of that combination is problematic for you?

Ala Hassine•11/4/24, 7:34 PM

my problem is how i can configurate freertos in stm32cubemx and how for example generate many tasks in same time

AAla Hassine my problem is how i can configurate freertos in stm32cubemx and how for example ...

Marvee Amasi•11/4/24, 7:53 PM

Right there in the stm32cubemx go to the middleware section and turn on freeRTOS . After dat you should check wher you would see Tasks and Queues and click Add to make more of tasks. When the code is generated, you’ll see the tasks in freertos.c

Marvee Amasi•11/4/24, 7:54 PM

You can then edit the StartDefaultTask()StartDefaultTask() function to set what each task does