KiCad 7 STM32 Bluetooth Hardware Design (2/2 PCB) - Phil's Lab
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- Опубликовано: 31 май 2024
- Step-by-step schematic and PCB design tutorial for STM32WB-based hardware (USB, RF, power) in KiCad 7. (Part 2 of 2) (Part 1: • KiCad 7 STM32 Bluetoot... ) PCBs by PCBWay www.pcbway.com
[SUPPORT]
Hardware design courses: phils-lab-shop.fedevel.education
Course content: www.phils-lab.net/courses
Patreon: / phils94
Tag-Connect: www.tag-connect.com/solutions...
[GIT]
www.github.com/pms67
[SOCIAL]
Instagram: / philslabyt
[LINKS]
KiCad 7: www.kicad.org/
STM32CubeIDE: www.st.com/en/development-too...
MCU Datasheet: www.st.com/resource/en/datash...
AN5165: www.st.com/resource/en/applic...
AN2867: www.st.com/resource/en/applic...
Hardware Design Playlist: • Hardware Design
Controlled Impedance: • KiCad Controlled Imped...
PCB Stack-Up & Build-Up: • PCB Stack-Up and Build...
Manufacturing & Assembly Files: • How To Get Your PCB Ma...
[TIMESTAMPS]
00:00 Introduction
01:03 PCBWay
01:42 Courses
02:19 PCB Set-Up
08:14 Design Rules
12:47 Trace and Vias Sizes
13:53 Controlled Impedance
19:15 Importing Components
20:19 Adding Missing 3D Models
24:53 Rats Nets and Net Colours
30:16 Initial Layout
36:16 Tag-Connect and USB Layout (Initial)
39:31 Mechanical Constraints
41:30 RF Layout (Initial)
42:36 Crystal Layout (Initial)
44:13 SMPS Layout (Initial)
45:28 UART Layout (Initial)
46:51 Layout Fine-Tuning
52:46 Decoupling Caps Layout
01:05:57 Misc. Layout
01:21:15 Board Outline
01:26:15 Routing Introduction
01:28:13 Ground Planes
01:31:38 Mounting Holes & Fiducial Markers
01:37:51 Via Placement
01:48:30 RF Routing
01:51:20 Crystal Routing
01:54:40 SMPS Routing
01:58:30 SWD Routing
02:00:21 USB Routing
02:05:29 Misc. Routing (NRST, BOOT0, UART, LED)
02:15:04 Power & Ground Routing
02:25:57 Stitching
02:28:08 Clean-Up (Silkscreen, Teardrops, Non-Functional Pads)
02:33:12 Design Rule Check (DRC)
02:36:03 Further Checks
02:38:11 Bill of Materials (BoM) and Pick 'n' Place (CPL)
02:41:23 Gerber
02:43:54 Additional Documents
02:49:45 Ordering
02:55:56 Outro 
Наука
Thanks a lot for watching! If you like the video, please leave a like and a comment - this really helps me out :) Part 1: ruclips.net/video/nkHFoxe0mrU/видео.html
I am from pakistan but living in germnay. I am PCB designer , I recently shifted to altium, and i started following you. Thanks man ; ich bin sehr dankbar.
Thanks for your support - und hallo aus Heidelberg :)
@@PhilsLab und hallo aus Frankfurt :)
My experience with Germany is they tend to scam foreigners and pay them less@@eemhi
@@eemhi do you use kicad before shifting to altium?
Thanks Phil, this is pure gold! You provide guidelines on so many critical topics of the design process! Otherwise it would take years and years of experience to figure out all this on your own!
Thank you very much - hopefully these are helpful! :)
@@PhilsLab I'm absolutely sure that they are! I would also be interested in your opinion about thermal relief SMD pad connection vs. same-net-island_but-no-thermal-relief connection to SMD pads. This is because I believe the latter could more often lead to tombstone'd SMD parts due to unequal heat dispersion capabilities with reference to opposite ends of a two pin SMD component for example. There were examples for both in this video of yours, so I would be interested to know your opinion about the methods. Maybe others could benefit from your response as well? Thanks!
Another great new feature in KICAD 7 is the pack feature. Just highlight the parts in your schematic you want to place next (e.g. a whole block like RF or USB-C), switch to the PCB Editor window and press "P". This will automatically group the selected parts on your cursor and you can drag them wherever you want.
Great video!
Thank you - very cool, I didn't know about that!
Exceptional work man, this will most likely become a student standard for designing a board, period.
Thanks a lot, that would be awesome! :)
Perfect , please create more and more projects, those are the type of long videos that we need 👏🔥
Thank you, Mohamed - I'd love to create more of these long-form videos. Unfortunately, even for simple projects such as this one, they take a rather large amount of time...
@@PhilsLab Take all my money.... worth every minute
Another banger of a video. This is the exact design flow i'm currently working on
Amaizing video. Perhaps for your next project you could consider making a video involving a battery powered PCB with support for USB C
charging and have support for being powered by both USB & Battery (power muxing) at the same time!
Thank you! Battery-powered/low-power devices is something I'd definitely like to make one or more videos on.
I been working on a very low power RF project .. found Ricoh RP605 smps that seems ideal to me
Nice tip about the color coding of the different net classes, keep up the high quality videos and information 🔥🔥
Thank you - glad you thought that tip was useful! More videos to come :)
Phil - Fantastic series - The attention to detail, tips and design considerations are highly beneficial !!
3 hours! It's just like a New Year came earlier🎉🎉
Haha thanks :D
Hi Phil! This was a great tutorial!! I have about 15 years of experience in PCB design and I'd say I agree 99% with all the decisions you took on this design.
I came to your video mostly to get knowledge on how to better use KiCad and I'm glad both the KiCad aspects as well as PCB design are very solid.
I'll probably get your course on Fedevel to deepen my understanding on KiCad. Thanks for sharing this for free!!!
So clearly explained, and packed with pure electronics geekery! I thoroughly enjoyed this video and gained a lot of confidence in doing my own projects. Thank you, Phil.
Thank you very much for your kind words! Glad this video is helpful.
Your channel is a blessing! You deserve more subscribers!
WoW! Very nice look onto how its done! Meself using KiCad for a few years now learned some new features. Thanks!
Thanks a lot!
been looking forward to this since part 1. I'm currently working on an esp32 board (my first) and while the schematic was relatively straight forward with the hardware design guide (and using other boards I already had been using as reference), the layout and routing still feels very daunting, even with the hardware design guide and reference board. this will help me a lot!
Thank you! Hopefully this video is helpful.
Terrific job Phil. Your videos are highly detailed and informative. Many thanks.
Thanks a lot for watching!
For rounding edge cuts, you can right click the rectangle and then click "Fillet Lines" :) Going to have to try the DXF approach though, would make it easier to make a 3d printed case later
Thanks for the tip!
Thank for this detailed and professional tutorial. However, 3:55 as a hobbyist I can't agree with this statement that 4 layers are very inexpensive. The same number of 2 layer pcbs from pcbway would cost $5. Or 10 times less expensive than 4 layers! Considering the fact that half of my projects were less than $50 (including components and enclosure), I would say that unless it is required by technology or design is very complex, I always to try to route pcb in 2 layers first.
Thanks a LOT Phil. I will be doing these projects during my break! Bless you man. Please make one with RF or FPGA
You're very welcome - I hope all goes well with your own designs! :)
This channel is such a gem 💎
Thank you very much!
Really love your Phil's Lab video series.
Thanks!
Been looking forward to this one since part 1!
Thank you, Greg!
the video is top again- and for me the first 60min are so important(settings before routing etc.) , because I didn´t know that with net class colors, which mae route much easier- thanks Phil great work.
Many thanks, Harald! Glad it was useful.
Phil, i really really hope this content gets good views for you (the work you put in is incredible as always)!!! Appreciate the youtube algorithm may not be friendly with these long form videos, and you are relying on subs to watch (which they will as thats why we sub!).
I've always LOVED your content so please keep on the good work!
Something I really liked was when you made the m.2 card. Would really love to see more of the 'high end' stuff like pcie implementations (now the pi 5 has a pci breakout - 2 lane - i could see a 'market' for people wanting more info on things they make for themselves using it rather than relying on hats). Have you ever thought about CM4 carrier board design as it has the mix of matching B2B connector layouts, pci, usb, etc.. however do appreciate your main knowledge base is STM32.
I find all your content so therapeutic!
I know you use the Tag connect pogo pin thing but any tips of homebrewing it as the official ones are stupidly expensive for what they are £40+ for some ribbon cable, 6 pogo pins and cheap molded plastic... we know the cost price to tag-connect is gonna be cheap like £1-5....
Thank you very much! Surprisingly, these long-form KiCad videos typically perform far better in terms of views compared to shorter ones/different topics.
I have a number of more advanced/non-STM32 vids on the channel, also touching on PCIe routing with FPGAs. But I agree, a carrier board for a CM4 or NVidia SBC would make for interesting content - thanks for the suggestion!
Regarding Tag-Connect, the upfront cost may seem high, but the practicality of the cables, ease-of-use, not needing headers on boards makes up for it many, many times in my opinion.
Thanks for your support!
@PhilsLab yh a carrier board might be fun as you have a LOAD of options to design for a mix of easier and complex IO. You could add pci to usb or ethernet chips, pci mux.
Would love to see high-speed usb (ie usb 3.x) as well with usb c.
As always love the content and wishing you a GREAT christmas and heres to 2024 and wishing it be a hreat year for you and the channel
Many thanks for the suggestions! Thank you, I hope you have a great Christmas and 2024 as well :) All the best!
Yess, the second part! My life feels whole now. ☺
Hahah thank you
Incredible amount of information thanks a lot for this
Excellent tutorial as aways!!! Now, what we really want is the same procedure but made in Altium :)
great video as always man! will be waiting for the Altium version.
Thank you! I have a similar STM32 + Altium video here: ruclips.net/video/PMEpQZ90f34/видео.html
You have really been helpful in my project and I am grateful. Please continue to make videos like this it helps.
Thanks a lot, glad these videos are helpful!
Great Video! Nice Phil!
Thanks a lot!
The 'rule of thumb' is to never break up/interrupt the ground pours. But there are times (definitely seen it on professional boards) where you very much want seperated ground planes (I think this is for thing where there is a seperate analogue ground).
I dont think I've seen many people cover pcb layout design where you really do want separate planes and like super uber use of via stiching etc.. is it one of those areas of knowledge like 'you KNOW when you need to do it because you have the specific special expertise to know about it' and basically every other time, without fault, you don't have split planes.
Other than the PCB antenna video you made a bit back have you any other experience with PCB RF filters?
I only ask as it seems usual for the layout team to be a seperate group from the schematic and design teams, and it seems like they may not have the 'full' knowledge of how to design such rf stuff (ie the calcs and knowing what needs to be done etc to waht signals etc) but still need to then layout and route it..... which sounds 'fun'......
I assume the schematic team and company as a whole would have custom footprints and the pcb layout team just need to lay them out even if they don't fully know how they work
You are inspiring new electrical engineers students
Thank you, I hope so! :)
thanks philsLab, the best pCB designer
Thank you!
Finally, thank you again Phil.
Thanks for your support! :)
"BluePhil", nice naming. And I learned a couple of useful tips for my next design.
Thank you! :)
Thanks!! Awesome video. I learned a lot from it!
Thanks!
Can you do one more video on custom panelization of PCBs in KiCad?
Brilliant tutorial, thanks!
Thank you, Mike!
@PhilsLab thank you for you videos especially for KiCad it is really very helpful, I just use it as tutorial to create mine project (best one in youtube right now)
Fully appreciated ur works..
Thank you very much!
Thank you for the video. Even using KiCAD for a long while, I've got some good tips from it.
What do you think about using microstrip vs coplanar waveguide for controlled impedance traces? Do you have any preference on that? If so, what's your reasoning?
I haven't done much RF design, but the last one had a 4G modem. I used the suggested 4 layer Signal/GND/GND/Signal stackup and went for coplanar waveguide on top layer, GND copper pour on both external layers, but I might have just went with microstrip and no pour on external layers.
Watching it right away 🎉🎉🎉
Thank you :)
excellent as always Phil thanks .. a quick question though.. should the USB shield be grounded or left floating instead?
Great video as usual. Thanks
Many thanks!
More power to you, man. When can we expect a firmware tutorial on this, desperately need one guide, asking my Phil god for it! Thanks buddy.
Thank you very much! Firmware tutorial sometime start of next year - I have a few other video ideas lined up :)
Pure Gold! Thanks!
Thanks a lot!
Excellent video! Thank you!
Thanks for watching!
Cool video, thanks for sharing it :)
Great Video, Phils Thanks
Thank you!
The video came out 3 minutes ago. How about you actually watch it before you call it good?
@@fredthechamp3475 , You are absolutely right, but i know the content from Phil's and Robert So, i am 100% sure the video is great.
Great work again as expected,waiting for more videos but please in allium XD
Thank you, Patrick - more to come!
Thank you so much this video help me a lot
I'm very glad to hear that - thanks for watching!
Keep the Great work 👍👍👍👍
Thank you, Ibrahim!
Very informative! Where did you get the pi network values?
Heads up to all - 2:32:18 - If you de-select "Keep Outside Layers", you will get some questions during review (at least from JLC) about your design. I don't have ground pours on top/bottom layers but they seemed confused if they were blind/buried vias (not offered) or through holes.
This is just GREAT STUFF!
Thanks a lot!
I noticed that in my PCB editor, the "show pads in outline mode" (button on the left) was on by default, or perhaps I'd activated it with a hotkey at some point. Turning this off (as in Phil's video) makes things a lot easier to read.
awesome video!
Thanks for watching!
Awesome work! How is the 2.4GHz RF performance? Any plans to use a spectrum analyzer like TinySA?
Thanks, Jose! Yes, I'm gonna make a video on testing the matching network/antenna performance using a NanoVNA.
❤ thank you Phil!
Thanks for watching! :)
thanks a lot for your work!
Thank you for watching!
Love the name of the board!
Thanks!
Hi
Very nice video.
Can you please explain how I can get the plugin or if you can give the link of the plugin for generating BOM because the old one for kicad 6 is not working anymore in kicad 7.
Maravilha de aula amigo, Abraço do brasil.
Thank you very much, greetings from Germany :)
Very interesting and well done tutorials. I suggest to the viewers to check also the two courses of Mr. Phil, they are worth every single euro.
Thank you very much!
This is an amazing series, thank you. Question: I followed everything to a T, yet I'm getting a ton of DRC violations. For example, on the WB55 footprint, for every pad I'm getting a "Front solder mask aperture bridges items with different nets" error. Thanks for any guidance you can provide.
Thank you! Regarding that DRC violation, you can either space components further apart, or reduce the solder mask openings (we set them to 0 in the video and let the manufacturer adjust). Check out this forum post, for example: forum.kicad.info/t/6-99-drc-fail-solder-mask-aperture-bridges-items-with-different-nets/35311
Hi Phil, Could you do a similar video with NB-IoT or Do you know where I can find how to design the same with NB-IoT?
Thanks from Spain!
i didn't understand 2:43:54 "Additional Documents" parts. Although maybe my English not good enough to understand. But can someone save me a time for saying is that important part or just a "making the pcb close enough to the perfect part"? if someone answer me, I'll appreciate it.
Hello Phil,
Will there be a video on a board with the ESP32-S3 at some point? I would very much like to see how to create a custom PCB for it and maybe with a built-in display using either I2C or SPI :-)
Probably at some point, yes! Although I'd like to showcase an nRF design first :)
Very good explanation of the entire process but I am still not clear which service is better for PCB manufacturing and assembly for maker projects and hobby users: PCBWay or JLCPCB? If you can give us your evaluation, thank you!
Thank you! PCBWay offers quite a bit more flexibility when it comes to both PCB specs and assembly, which can be/is very important in more intricate/advanced designs.
For maker/hobby boards usually this doesn't matter too much of course, so in many cases either option is fine. I am biased however with the PCBWay sponsorship :)
Very nice tutorial ! what software do you use to print out all manufacturing data you're presenting at the end of the video please ?
The examples were actually made using a different ECAD tool (Altium Designer). However, I believe there are some plugins available for KiCad that should be able to create similar drawings.
Did anyone submit the gerber files to PCBway to only have the board manufactured? I’m curious what anyone else might have gotten back in terms of the price. Mine (without shipping) was roughly $105. Thanks!
Cheers!
Do you have a PDF of the schematic?
Thank you Phil , will u do Altium version video ?
I have a full STM32 + Altium tutorial here: ruclips.net/video/PMEpQZ90f34/видео.html
I could not find the schematics in the description
I'm afraid I don't provide the design files for this. My personal experience is that I learn better by doing designs myself from scratch, rather than copying.
@@PhilsLab I get it , I just wanted a pdf version of it just to compare my design against it as a reference design. Anyways the video was a great help for me. Thank you. :)
When I click on the impedance control, the price increases by 50 euros 😱. I took the 0.17mm and 0.22mm and ordered without impedance control and got pretty the same price as you.
1:50:34 do we need to add a RF guard ring for better performance? Will it make any good , could you please explain the use of a RF guard ring
You could do if you want to go through certification, for example. I may make a video on this in the future.
@@PhilsLab got it. ST have a companion IPD ic for RF , if I add that do i still wanna do the trace impedance matching? Also that ic is more expensive than a LC filter , is that worth it?.
is there any 802.15.6 example?
Sir excellent video. Keep it up. Can you make video about higher ampere pcb design.
Thank you, good idea!
My pleasure ❤️
Thank You
Thanks for watching, Alex!
Thanks for great content Phil. Soon Kicad 8 will be out and you get to make it again :)
I have a question on how the component sourcing works in practice. You specify parts from Mouser in germany in your BOM and PcbWay will source them. But do they just source the few components needed for your boards? Don't they need to order full reels of components for their PnP machines? For example the USB connector you specified, if they don't have it in stock, how do they go about that?
Also, can PcbWay source components from LCSC? Wouldn't this be much cheaper since AFAIK they keep large stocks of components from various manufactureres, and they're located in china.
A wish you a merry christmas!
Thanks for watching! Haha yeah, KiCad 8 vid will have to be made soon!
Since PCBWay handles many orders at a time, they will combine and order 'in bulk' from various distributors to get parts together for various customers in parallel. Yes, they can source from pretty much any vendor (incl. LCSC).
Happy holidays!
Nice
Have you ever done emc testing in test house? Have you ever had an emc problem ? Would the board designed here pass emc tests ?
Yes, I've done this many times. And EMC problems of course do crop up at times - I'd like to make some videos on the process.
These types of boards typically require an RF can/shield in many cases to pass certification testing (e.g. check out pre-certfied modules from u-blox, ST, u-blox, etc..).
@@PhilsLab definitely a good idea of video! Following the design of a pcb from the beggining to the emc testing, emc testing are expansive so maybe recording the process for a board you do at your job? The most important is the thought process to counter emc issues, not the emc testing themselves
do you plan to make a tutorial how to route smd antena / rf-antenna design ? :)
Yes, that's a video for this month (hopefully) :)
Thank you sir for your resourceful contents.
I would like to ask what you studied in college and how you were able to learn pcb design.
Thanks for watching! I studied electrical and control systems engineering, however, PCB design wasn't part of the curriculum. This is pretty much all self-taught.
@@PhilsLab I'm grateful for your response. Can you suggest a pathway how one can self-teach electronics and pcb design or do you have a video on it?
Thank you.
So i can just opt for Chip antenna instead of antenna connector?
Follow the datasheet of the chip antenna - this'll give you information on GND/copper structures, and matching impedance. But in essence, it's a pretty straightforward implementation.
I tried Altium for some time and got back to KiCAD, cause it does not add any obstacles. You just draw and trace. I don't develop 12 layers AMD motherboard, and so will never use 90% of Altium features, but I found out that it does not help to make work fast. Please, more edu vids with KiCAD. May be with some useful plugins.
I'd also like to know if it was in college you learnt a bulk of the knowledge of pcb or you self-leaned.
What would you suggest someone studies and learns to perfect this skill.
He made a video on that topic, called something lile 'my journey pcb design'
What does this PCB do?
🐐
can you make any video about electronics as core , R, L,C,Antenna design, not the basic level but advance level such as designing own circuit . emebedded is like only programming , i looking for designing tutorials.
Yes, definitely - something I have a few upcoming videos planned on!
What is the total price for 5 boards that PCBWAY quoted?
Assembly was about 130 USD for 3 pieces incl. components. PCB cost around what you see in the video - there can be a surcharge for impedance control.
Respect ++
Ah, the quirks are always something with KICAD but it is free so its just a workflow thing. The worst package I use professionally is PADS, if you want to hate your job give it a try!
Definitely! I must say, it had also been about a year of not using KiCad, before preparing for this video, as I've just been using Altium - I'm sure there are easier/better ways of doing things at times. Definitely haven't heard the greatest things about PADS haha..
@PhilsLab I dont recall if you did one, but a video about multi-sheet schematics in KICAD would be nice. Its another quirk that is strange compared to any other EDA.
Make video on PoE ethernet complete design guide, Thanks
At some point, definitely! :)
Small tip, any reference PCB MIFA Antenna design would work better than these chip antennas. These have bad null points.
Indeed. I recently (finally) acquired a nanoVNA and wanted to test out various antennas, as I have used trace and off-board antennas quite a bit and thus wanted to give this a go :)
@@PhilsLabim hyped to see your result soon :)
Just FYI, the NXP application Note AN11994 talks about a decent MIFA design.@@PhilsLab
Arduino integrated with nrf24 module
👍🙏❤️
19:34
1:37:51