Yeah so much so. And this is of course not dev-chat. This is turning to be a welcome chat with mix o

Yeah so much so. And this is of course not dev-chat. This is turning to be a welcome chat with mix of everything.

One thing to do is kick the DevHeads bot which keeps screaming about verification of new people to another space named #intro

NavadeepOP•1/19/24, 7:29 AM

I think there was one channel like that - doesn't seem to exist.
@Phoenix

Ffwen Whattt I've never seen a dev board this cheap let alone the Bluetooth capability

NavadeepOP•1/19/24, 7:39 AM

oh boiii. Just looked at their catalogue. Some awesomazing products. I am liking this one https://www.wch-ic.com/products/CH32V208.html?
not easy to get all this features in a package - perfect IoT MCU(has ethernet PHY and MAC within! gateway applications). Unsung hero of IoT MCU.

NNavadeep oh boiii. Just looked at their catalogue. Some awesomazing products. I am liking...

fwen•1/19/24, 7:48 AM

Eh I think it lacks some tool chains and tutorials right at the moment. That is making it harder for newer people to get into it. But expert like you guys should have no problem haha

NNavadeep Yeah so much so. And this is of course not dev-chat. This is turning to be a wel...

BenCos18•1/19/24, 9:13 AM

yep I agree there

BBenCos18 yep I agree there

techielew•1/19/24, 9:23 AM

Thanks for the feedback. We'll look into bringing an intro/welcome channel back for the first time.

Ffwen Eh I think it lacks some tool chains and tutorials right at the moment. That is ...

Umesh Lokhande•1/19/24, 9:31 AM

Hi @fwen agree with you. Sometimes even experienced people concerned about new tools especially unpopular ones. It leads to time investment and not getting the expected results causing delays in project delivery.

kristof-at-embeetle•1/19/24, 10:03 AM

@Navadeep , @fwen and @Umesh Lokhande ,
You guys said about the WCH chips:

I think it lacks some tool chains and tutorials right at the moment. That is making it harder for newer people to get into it.

We're solving that with Embeetle IDE [see https://embeetle.com] - not only for WCH chips of course, but for all the MCUs we integrate, we're not bound to a specific vendor. Here's what Embeetle can mean for you when you want to get started with a new MCU:

Embeetle provides one or more sample projects for your MCU, typically to blink an LED for a quick start.
Embeetle downloads all the tools automatically when you launch a project (compiler, flashtool, ...).
Embeetle provides excellent documentation on the MCU and the dev board, eg: https://embeetle.com/#supported-hardware/wch/boards/ch32v003f4p6-evt-r0-1v1

kristof-at-embeetle•1/19/24, 10:05 AM

Sorry for the shameless self promotion

kristof-at-embeetle•1/19/24, 10:05 AM

Anyway, Embeetle is free software.

Kkristof-at-embeetle @Navadeep , @fwen and @Umesh Lokhande , You guys said about the WCH chips: > *I...

fwen•1/19/24, 10:07 AM

I'll make sure to check it out if I get my hand on a WCH microcontroller.

kristof-at-embeetle•1/19/24, 10:09 AM

I can send you the Tiny Scarab board when it's finished and fully tested. I might have to ask a little compensation for the production costs. I'll share more on that later here in the chat (once I have a definitive production cost estimation).

fwen•1/19/24, 10:44 AM

thanks!!

Saßì•1/19/24, 2:27 PM

Friendly Reminder about Upcoming Event
https://discord.com/invite/9WAHNJb2?event=1196809694661054556

SSaßì Friendly Reminder about Upcoming Event https://discord.com/invite/9WAHNJb2?event...

techielew•1/19/24, 3:00 PM

Hey @everyone, we're starting in a couple minutes! See you in the meetup!

DevHeads•1/19/24, 3:48 PM

Congrats @ygramoel ! You've been Verified!

Saßì•1/19/24, 4:13 PM

@ygramoel Welcome! will be happy to know your technical background and what project you're working on these days.

NavadeepOP•1/19/24, 4:20 PM

@everyone Thanks for tuning in for today's DevHeads Office Hours! We talked all around IoT FOTA, Tiny Scarab board and about some exciting demo videos coming up. Again, cheers to all new Dev's!

People who have missed this can always watch the recording. Stay tuned and keep smashing that bug.

ygramoel•1/19/24, 4:21 PM

Hi @Saßì , I'm currently working on the Embeetle IDE together with @kmulier, I have a background in EDA tool development mostly, also all kinds of electronics project, started working in 1983, long before internet became ubiquitous. Trying to figure out what devheads is all about

ygramoel•1/19/24, 4:24 PM

To be honest, I don't really understand how Discord works yet. Typing this on my phone because haven't figured out yet how to connect to this channel on my pc

Yygramoel To be honest, I don't really understand how Discord works yet. Typing this on my...

nour_oud•1/19/24, 4:33 PM

Hi welcome. Try using this link https://discord.gg/U2WXAwWB6H
It will open this channel

ygramoel•1/19/24, 4:36 PM

That worked, thanks

Padmalaya Rawal•1/19/24, 5:48 PM

I got my hands dirty on Resin 3D printing for the very first, Results are flabbergasting.

A word of caution for those who wanna try the same:
This model took 3 hrs to print, 30mins of post processing and almost 2.5-3hrs to clean all the mess

PPadmalaya Rawal I got my hands dirty on Resin 3D printing for the very first, Results are flabbe...

nour_oud•1/19/24, 6:56 PM

Good job

shardul17•1/19/24, 7:20 PM

Hello guys,

I wanted to know more about standardised architecture of linux based embedded system.

My system is having Digital IOs, Analog IOs, CAN, Modbus over RS485, RTC, Web server etc....

Hardware is ready. Also, it's working smoothly but i dont want it to be tightly coupled.

What i want is every other module will work independently and i will code the application (Custom logic) only as per requirement.

Any suggestions, posts, links.....i am relatively new to this.
Thank you...!!

Sshardul17 Hello guys, I wanted to know more about standardised architecture of linux base...

abhishek awasthi•1/19/24, 7:50 PM

as the requirement you have provided ... i feel that all these input interrupts and outputs should have thier own logic and so some kind of ipc ... in that situation you can utilize some ipc methods or else you may use ros as an architect ... where everything is a pub sub structure and considered as nodes ...

abhishek awasthi•1/19/24, 7:51 PM

also may i know the environment and mpu details ..

abhishek awasthi•1/19/24, 7:51 PM

build environment*

abhishek awasthi•1/19/24, 7:58 PM

here by ipc i mean ... inter procedure communication ...

kristof-at-embeetle•1/19/24, 11:31 PM

kristof-at-embeetle•1/19/24, 11:31 PM

I'm placing TVS diodes at all the IO pins

kristof-at-embeetle•1/19/24, 11:32 PM

For example:

kristof-at-embeetle•1/19/24, 11:32 PM

kristof-at-embeetle•1/19/24, 11:38 PM

I also installed plenty of 'security' at the USB port:

kristof-at-embeetle•1/19/24, 11:38 PM

kristof-at-embeetle•1/19/24, 11:43 PM

(1) TVS DATA LINES
TVS Diodes protect the USB data lines against voltage transients.

(2) TVS 5V POWER
A larger TVS diode is placed on the 5V power incoming from the USB connector to deflect voltage transients.

(3) ZENER 5V + (4) FUSE
A zener diode of 5V6 (I took a bit of margin) is connected to the 5V USB power line. A permanent overvoltage will short through this zener diode and burn the fuse. The rest of the circuit should be fine.

(5) PMIC 500mA
A

AP2141WG-7

AP2141WG-7

chip lets only 500mA pass through from the incoming USB power to the rest of the board. In case of overcurrent it will shut down and lit the

ERR

ERR

LED.

fwen•1/20/24, 1:31 AM

That sounds wayyyy overkill for such a cheap microcontroller

fwen•1/20/24, 1:31 AM

Like for me personally I think replacing the microcontroller itself would be cheaper

techielew•1/20/24, 4:18 AM

@Wired & Wireless Networking folks, any suggestions on the best MQTT client software to use when testing MQTT topics during development? At least as far as ease of use and security are concerned..?

Ttechielew @Wired & Wireless Networking folks, any suggestions on the best MQTT client sof...

abhishek awasthi•1/20/24, 4:20 AM

mqtt explorer is what i prefer for the ease of usage

Aabhishek awasthi mqtt explorer is what i prefer for the ease of usage

techielew•1/20/24, 4:29 AM

Nice! Thanks. I'm looking into it. Looks like it checks a lot of boxes around open source, platform support, and decent enough documentation, BUT...

Is it still being maintained?

https://mqtt-explorer.com/

MQTT Explorer

An all-round MQTT client that provides a structured topic overview

techielew•1/20/24, 4:30 AM

Also, how and from where do I know Thomas Nordquist nerdthinking

... I can't put my finger on it...

Ttechielew Also, how and from where do I know Thomas Nordquist <:nerdthinking:8080573401539...

Umesh Lokhande•1/20/24, 4:36 AM

Even I use MQTTExplorer daily but when working with sensitive applications, especially for security where we need to upload files (.crt, private or public.pem etc). I prefer MQTTFx. For a mobile client, also recommend looking into the MyMQTT App if security is not a concern

UUmesh Lokhande Even I use *MQTTExplorer* daily but when working with sensitive applications, es...

techielew•1/20/24, 5:15 AM

Costs $$

Umesh Lokhande•1/20/24, 5:42 AM

Yes, unfortunately, *MQTTFx *costs $ starts at 49.90€. For free as Abhishek said MQTTExplorer is good to get the job done!

DevHeads•1/20/24, 9:51 AM

Congrats @Deepak ! You've been Verified!

Saßì•1/20/24, 9:55 AM

@Deepak Welcome , Can you tell us a little about yourself and your technical background? What brings you to DevHeads? What are you working on currently?

DevHeads•1/20/24, 11:35 AM

Congrats @topgun3237 ! You've been Verified!

Saßì•1/20/24, 12:06 PM

@topgun3237 Welcome! will be happy to know your technical background and what project you're working on these days.

Ffwen That sounds wayyyy overkill for such a cheap microcontroller

kristof-at-embeetle•1/20/24, 12:10 PM

Hi @fwen ,
I understand your point. However, all that protection is not so much to safeguard your "investment" in the 10-cent MCU. It's intended to safeguard your time investment. See, a Transient Voltage event (eg. ESD discharge) can damage the chip slightly, such that some of its IO pins no longer work. You might not immediately figure out why your project is failing and be troubleshooting for a whole day.

Kkristof-at-embeetle Hi @fwen , I understand your point. However, all that protection is not so much ...

fwen•1/20/24, 12:35 PM

oh i thought when it's damage it just no longer work. i havent had any failed on me before. thanks for the clarification!