It's been a while since I have tried embedded on rust, last time I think RTIC was just coming online
It's been a while since I have tried embedded on rust, last time I think RTIC was just coming online.
BAsync functions represent an operation to be performed. This is a state machine and it's called a future. Every edge of the state machine is to be taken as a reaction to an event. Rust itself doesn't tell you how to drive the state machine, it only provides some of the required infrastructure(waker trait, future trait). The ecosystem does the rest. Tokio is a futures runtime that relies on epoll, kqueue, or other event loop depending on os. Embassy relies on nvic hardware and doesn't need os or allocator
BWorth noting that in theory, by expressing your application with structured concurrency (composing futures together), you can skip the stack. You know the maximum size of your futures statically.
BRTIC (formerly RTFM lol) is a similar beast. They do async too now. But their unique point is concurrency with static guarantee no data races (rust), no priority inversion, or deadlock (RTIC guarantee)
ZEmbassy looks like a young Zephyr to be honest. In part I guess because you have embedded_hal traits and you can just move from architecture to architecture with just commands. It's impressive how much the eco system has grown since 2021
ZAlso thank you for all the info.
MThe argument I was given was that memory-safe languages like Rust, Go, etc is that it frees up the developer to actually concentrate on solving the problem.
Having the language/compiler do bounds checking, Allocation/Deallocation, type safety, etc means that I don't have to, and like most programmers, I am lazy so I'm quite happy for the system to do things for me!
To write 'safe' code in C/C++ is possible - but it means that you need to constantly be aware of what you are doing with your allocations. That can get tiring and at some point something is going to slip through.
One of the dangers I can see is that developers can then get complacent and don't think about their memory management at all - as even in memory safe languages that are going to be some bits that are not memory-safe.
Static and Dynamic Application Security Testing (SAST & DAST) can help but even they are not going to find every issue and even then I have seen them throw up false positives occasionally.
Organisations such as the NSA are advising organisations to move to more memory-safe langauges
https://media.defense.gov/2022/Nov/10/2003112742/-1/-1/0/CSI_SOFTWARE_MEMORY_SAFETY.PDF
Having the language/compiler do bounds checking, Allocation/Deallocation, type safety, etc means that I don't have to, and like most programmers, I am lazy so I'm quite happy for the system to do things for me!
To write 'safe' code in C/C++ is possible - but it means that you need to constantly be aware of what you are doing with your allocations. That can get tiring and at some point something is going to slip through.
One of the dangers I can see is that developers can then get complacent and don't think about their memory management at all - as even in memory safe languages that are going to be some bits that are not memory-safe.
Static and Dynamic Application Security Testing (SAST & DAST) can help but even they are not going to find every issue and even then I have seen them throw up false positives occasionally.
Organisations such as the NSA are advising organisations to move to more memory-safe langauges
https://media.defense.gov/2022/Nov/10/2003112742/-1/-1/0/CSI_SOFTWARE_MEMORY_SAFETY.PDF
R
DHello Folks
TWelcome DNS, what brings you to DevHeads?
ACan I send data for two sensors with two variables from Arduino to ESP32 so that the value of each sensor appears in a different variable in ESP32?
TI'm glad you brought up SAST/DAST in the context of complacent development as I was going to say, "the static analysis tool will catch it!"
That's probably a danger regardless. You're either thorough or you aren't. No language is going to prevent buggy code/bad coding practices.
That's probably a danger regardless. You're either thorough or you aren't. No language is going to prevent buggy code/bad coding practices.
AHi! I stumbled upon this server on disboard. I am but an average electrical engineering graduate who got interested in embedded systems and systems programming, and now trying to self-learn. Currently learning programming on STM32
ZWelcome! let us know when you stumble and we will try to help.
B"No language is gonna prevent bugs/bad coding practices" I do generally agree, but I think that is an oversimplification. It's like saying "no driving style is safe on the road"
TPlease elaborate... If I drive drunk it doesn't matter if I'm in a tank or not I'm still not going to drive well and am much more likely to get in an accident.
If I'm in an auto-piloted taxi, then am I really driving?
If I'm in an auto-piloted taxi, then am I really driving?
BThe driving style is the language. Yes accidents happen even for very conservative drivers, but it just isn't the same likelihood. Not a perfect analogy. But saying the tool doesn't matter is papering over the details
ZNo language or tool offers you
auto-pilotsafe languagesTradeshow Time 
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Join IoT Stars during Embedded World North America 2024 and meet leading IoT professionals in Austin, Texas.
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UYes, it's possible. You can use wired communication serial UART Pins between both micros.
AI have five sensors. Can I transfer their readings from the Arduino to the ESP32 via UART or do I need level shift?
USince they operate on different voltage level, the best way to use level converter or else you can bring the voltage of arduino to 3.3V. This can be done by a voltage divider circuit using one 10k resistors and one 20k resistor at Tx Pin of Arduino.
ADo you mean like this?
AOr how ?
A@Umesh Lokhande
Uyes, try and test with these connections
AWhat is the best type of ESP32 in terms of voltage reading accuracy from analog pins because I have an ESP32 but the reading accuracy is not stable or close. It rises and falls at high degrees of more than 500 bits up and down and is also not stable. For example, it rises to 1700 and drops to 1432 and rises to 1520 and drops to 1300. What is the solution?
MYou could have an external voltage sensor
Or maybe look at how bits the ADC is
Or maybe look at how bits the ADC is
Uyou can improve ADC's accuracy using reference voltage. Here is how to do it https://www.youtube.com/watch?v=mzlq65fr3uI
AGreetings. I hope you are doing all well. I cannot participate today due to a family issue. I am very sorry for letting you down. I will more likely participate in Sunday's Engineering Hour.
NGreetings! No worries at all. We hope to see you tomorrow for the Office Hours: 'How to Choose the Right IoT Cloud Platform.' Just a quick note, there’s no Engineering Hour this week, so take your time. Looking forward to seeing you soon!
NReminder 
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Just 2 hours left until our AMA: Troubleshooting Common Yocto Build Issues! Don't miss your chance to join us, ask your questions, and get expert insights. See you soon!
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THope everything's okay, Maestro.
N@here The event is starting now! Come and join us—see you there!
NDevHeads IoT Integration Server
PLEASE JOIN AS A SPEAKER IF YOU WANT TO PARTICIPATE IN THE DISCUSSION!Join DevHeads meetups to connect with other DevHeads and riff on a variety of topics for 30-60 minutes. Join here: https:...
TYou may have to select the AMA from the dropdown menu on the above page. Sorry for that folks. Otherwise, here's a direct link: https://app.livestorm.co/devheads-community/devheads-weekly-office-hours-1/live?s=a494eb2d-7918-4fb6-82b5-aa2064f50a30#/chat
NThanks for joining our AMA on Troubleshooting Yocto Build Issues!
We’d love to have you join us tomorrow for [LIVE] Office Hours: How to Choose the Right IoT Cloud Platform at 15:00 UTC.
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See you there!
We’d love to have you join us tomorrow for [LIVE] Office Hours: How to Choose the Right IoT Cloud Platform at 15:00 UTC.
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R
!who needs developers?
ZUsually people who build software why?
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ACan someone help me to find the ESPNOW library
ADoes this piece fully stabilize the readings in the esp32 or is it useless?
WYes, it helps improves ESP32 analog reading stability and accuracy
AThnx
AIs there a difference between these two in terms of the accuracy of the readings or is it just the size?
WThis tutorial has a section on installing the ESP32 libraries into the Arduino IDE:
[(https://randomnerdtutorials.com/esp-now-esp32-arduino-ide/)
See if you've done it the same way.
[(https://randomnerdtutorials.com/esp-now-esp32-arduino-ide/)
See if you've done it the same way.
Random Nerd Tutorials
Learn how ESP-NOW work to exchange data between ESP32 boards using Arduino IDE. ESP-NOW is a connectionless communication protocol developed by Espressif Systems.
RHi
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