Hi devs , is there any way to read rs485 output , using a arduino ?

AAccur4te Hi devs , is there any way to read rs485 output , using a arduino ?

aymen ammari•5/15/24, 7:14 AM

Hi, sure you can read this article that talks about that
https://circuitdigest.com/microcontroller-projects/rs485-serial-communication-between-arduino-uno-and-arduino-nano

RS485 Serial Communication between Arduino Uno and Arduino Nano

youcef_ali•5/15/24, 9:39 AM

Hi team, i would like to record an analog signal of 70mghz frequency min, how do i proceed, the time is max 16 min of recording

Yyoucef_ali Hi team, i would like to record an analog signal of 70mghz frequency min, how do...

onky•5/15/24, 9:55 AM

What kind of setup do you have? LabView with NI hardware might help. Or do you want to build your own hardware for this?

youcef_ali•5/15/24, 9:56 AM

Yes, i have nothing starting from zero

Oonky What kind of setup do you have? LabView with NI hardware might help. Or do you w...

youcef_ali•5/15/24, 9:56 AM

Yes, i have nothing starting from zero

onky•5/15/24, 9:57 AM

So I assume, you want design your own electronics.

onky•5/15/24, 2:00 PM

As per Nyquist criterion, your sampling frequency must be twice of measuring frequency, so your signal is 70 MHz, so fsample must be 140MHz, in this case you need ADC with 250Ms/s atleast, and depends on your measuring instrument memory you will have to transfer the measured data to larger memory multiple times in 16 mins as DSOs does not have large memory, this changes with resolution of ADC. Lower resolution lower data.

Saßì•5/15/24, 2:53 PM

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youcef_ali•5/15/24, 3:14 PM

team i want to export this library to eclipse so i can use in a microcontroller please advise https://github.com/quiet/libfec/tree/master

GitHub

GitHub - quiet/libfec: Clone of Phil Karn's libfec with capability ...

Clone of Phil Karn's libfec with capability to build on x86-64 - quiet/libfec

Yyoucef_ali team i want to export this library to eclipse so i can use in a microcontroller ...

techielew•5/15/24, 5:05 PM

Mvoing to #coders-only-chat

aymen ammari•5/15/24, 7:44 PM

aymen ammari•5/15/24, 7:45 PM

Who can solve this quiz

techielew•5/15/24, 8:23 PM

Hey DevHeads, we want your feedback on the server structure. Can you cast your vote by thumbs upping or thumbs downing the proposal in the #announcements channel by Sunday, 5/19 at 15:00 GMT?

ezpz•5/16/24, 1:33 AM

Hey Guys,

I am currently working on a side project, where I images and text via nfc and display it on E-paper display. I am currently using arduino and pervasive epaper display. But I am not able to display png images. What image format should i use to transfer images via nfc?

Eezpz Hey Guys, I am currently working on a side project, where I images and text vi...

techielew•5/16/24, 3:44 AM

Have you tried jpg?

Aaymen ammari Click to see attachment

techielew•5/16/24, 3:45 AM

I added the letter comments so I can't vote

what you say, @PCB & Analog?

aymen ammari•5/16/24, 11:45 AM

Hi Devs, I want to share with you my experiment today, so my friend wanted to print a pcb with the fastes way possible, with high quality, and we didn't want to use Ink and iron method, so I came up with thus idea, to cut adhesive warp with plotter machine and remove the excess then apply it to copper board then pure the solution... And this was the result,
what do you think about it

aymen ammari•5/16/24, 11:50 AM

Aaymen ammari Hi Devs, I want to share with you my experiment today, so my friend wanted to pr...

wafa_ath•5/16/24, 2:13 PM

Ow , that's interesting

, good job

aymen ammari•5/16/24, 2:13 PM

Thank you

wafa_ath•5/16/24, 2:28 PM

wafa_ath•5/16/24, 2:30 PM

Since this week engineering hours is about Arm Cortex-M series ... Share with us ur Ideas

Ttechielew Have you tried jpg?

ezpz•5/16/24, 3:12 PM

the app i found which transfer images via nfc uses PNG. Now, i am not sure how to display PNG on epaper display using stm

Saßì•5/17/24, 4:08 AM

Friendly reminder about Upcoming Event
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Hey hey @Event Pings, get ready to join this week's OH where we're learning about each other so we can up the collab

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PY1202•5/17/24, 5:07 PM

Dtynin•5/17/24, 5:07 PM

aymen ammari•5/17/24, 5:17 PM

Hi @Felix @Dtynin

PY1202•5/17/24, 7:10 PM

Hello

PY1202•5/17/24, 7:11 PM

Nice to meet you!

PPY1202 Nice to meet you!

techielew•5/17/24, 8:10 PM

Welcome, what are you working on Felix?

Saßì•5/18/24, 3:24 AM

@Dtynin @andrea_opengl @Felix @robo_moto_x Welcome to the community! We're eager to learn more about you. Can you introduce yourself and tell us about your professional life?

855869•5/18/24, 1:54 PM

Hello

8855869 Hello

Saßì•5/18/24, 1:55 PM

Welcome to Dev Heads!!

Saßì•5/18/24, 2:04 PM

Friendly reminder about Upcoming Event
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Medha Jain•5/18/24, 2:21 PM

Hello

MMedha Jain Hello

techielew•5/18/24, 2:31 PM

Welcome Medha, I'm techielew

I see you're interested in MCUs/MPUs/Firmware and Middleware & OS. We've got a few channels dedicated to those topics:
* #embedded-sw-chat
* Forum/Discussion Board: #middleware-and-os
* Forum/Discussion Board #mcu-mpu-and-firmware

Jump into the above channels to get started, and if you need help ping @FW Lead and @SW-Lead depending on the topic and we'll do our best to help.

Saßì•5/19/24, 3:32 AM

@allSeasonsEdiz @di5cordedmanoj2078 @Sumit Jadhav @techdhaba @vamsi4007 @ankit @Medha Jain @satyam @Blankofi @855869 @SallyIbaid @Daradrio @Diwakar Welcome to the community! We're eager to learn more about you. Can you introduce yourself and tell us about your professional life?

Blankofi•5/19/24, 3:36 AM

Hello everyone!

I am currently an MTech student specializing in VLSI and Embedded Systems. I'm here to learn, collaborate on projects, and connect with professionals in the field. I'm eager to expand my knowledge and skills, and I look forward to contributing to and learning from this community.

Thank you!

BBlankofi Hello everyone! I am currently an MTech student specializing in VLSI and Embedd...

techielew•5/19/24, 4:04 AM

Welcome! How much AI & ML is in your VLSI curriculum?

Blankofi•5/19/24, 4:10 AM

Currently, our VLSI curriculum does not include AI and ML. However, I am very interested in learning more about these areas. If you have any resources or information on AI and ML, I would love to explore them to enhance my understanding and skills.

BBlankofi Currently, our VLSI curriculum does not include AI and ML. However, I am very in...

techielew•5/19/24, 4:22 AM

Interesting. My background is covering the embedded and IOT spaces so not a ton of experience in chip design but must say I’m surprised there aren’t at least a couple courses starting to introduce those concepts yet. @Navadeep wrote a blog a couple months ago about hardware design with AI/ML tools, and while that was at the PCB level it may include some foundational concepts that would be beneficial. I’ll see if I can find it in the morning (I’m in US).

Accur4teOP•5/19/24, 5:12 AM

guys does anyone have an idea why espnow is not used in industrial applications ?

AAccur4te guys does anyone have an idea why espnow is not used in industrial applications ...

techielew•5/19/24, 5:19 AM

Probably the same reasons you don't see a lot of Bluetooth or Wi-Fi. Lots of high-density environments with lots of noise and interference.

Ttechielew Probably the same reasons you don't see a lot of Bluetooth or Wi-Fi. Lots of hig...

Accur4teOP•5/19/24, 12:33 PM

yeah but how much it can affect for example , the range of esp32 c3 dev board with pcb antenna gives 100m of range in an open field ( more than generic rf modules ) . IF we were able to fit high end external antenna to esp32c3 ( custom board ) and used it in a industrial setting , how much range we can get , on an approx like any estimates you can give ?

techielew•5/19/24, 12:40 PM

That’s really difficult to answer without knowing more about the environment. The problem is interference (EMI, physical obstructions, etc) in the environment.

techielew•5/19/24, 12:44 PM

In addition to interference, how crowded is the spectrum, etc. There is a reason there are all sorts of specialized protocols and technologies for industrial environments.

What sort of data are you looking to send? Check out some of the 802.15.4 options like Wireless HART and Zigbee. @accur4te

Ttechielew In addition to interference, how crowded is the spectrum, etc. There is a reason...

Accur4teOP•5/19/24, 2:15 PM

the data is sensor reading (rs485) . I was looking forward to send readings of the multiple sensors to a single gateway using espnow and then upload it to the cloud from the gateway @techielew

Hi devs , is there any way to read rs485 output , using a arduino ?

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