Great video. I always wondered if I was doing something wrong when updating an existing PCB layout... Now I know it just plain takes time to do the job. Thanks!
@TOinaeraser12 жыл бұрын
I find it funny that so many people are saying SMT would be sooo much better. Dave made a very conscious choice to use through hole components, and while many hobbyists are able to able to solder them (including myself) it is not something that everyone wants to do. Using through hole also makes it much easier to test your finished boards without building in test points or stuff like that. All in all it doesn't impact the finished board too much, as everything fits and it is feature full.
@lodevijk12 жыл бұрын
@somebody301 This is an open design, meant for everyone to use. Not everyone can solder SMD.
@oBsRVr66612 жыл бұрын
@TheEPROM9 The board is Arduino compatible, hence it is programmed in the Arduino language, which is a simplyfied C language.
@EEVblog12 жыл бұрын
Yes, I used to use tap on clear film and had to physically "rip-up"
@TOinaeraser12 жыл бұрын
As to the autorouter, I find it very enjoyable to route manually, and while the autorouter can do a good job, it is usually only in specific situations. For a board like this, with many power and ground considerations, the autorouter could only be used for a few traces, so it ends up easier to just do it manually. Plus all the time setting up the autorouter would rid any advantage.
@insonicbloom12 жыл бұрын
@gbowne1 the board is that size because he has a specific case in mind. I don't think he just threw together a random board size, there was thought that went into it!
@NickBR573 жыл бұрын
All these years later I have found this superb series of videos. Thanks Dave for a fantastic insight into the design and refinement process. A long shot, but is it possible to get hold of a pcb for this design at this distance in time? Would love to build it!
@magnuswootton61812 жыл бұрын
I think you have to buy it as a finished product, nice souveniere definitely.
@oBsRVr66612 жыл бұрын
@somebody301 He wants to sell this as a basic kit. He specifically decided for THT components only, to make soldering the kit as easy as possible. (Aiming at beginners, etc).
@insonicbloom12 жыл бұрын
@kiyotewolf perhaps Dave should go back and edit the last one so you do like it? what did you hope to accomplish by informing him of that
@MrStemkilla12 жыл бұрын
cool i would have gone with a bigger board but you did it fine how it is. really cool to see how this all works
@EEVblog12 жыл бұрын
Usually not, not high enough freq components.
@gbowne112 жыл бұрын
I was thinking you might need a teeny little bit bigger board. I've used my Altium in DSP design for RF. I basically totally redesigned a 1980's era radio.
@ornotermes12 жыл бұрын
@soclt That might be, but if one need to save space while trying to avoid SMD I think they're still worth looking at.
@oBsRVr66612 жыл бұрын
@lodevijk I guess you're right. "Selective" vertical mounting might save some space indeed. Why didn't I think about this, when I commented on your comment. :)
@kennethandrysiak41309 ай бұрын
Like your channel. With all of your discrete pull up resistors… why did you not go to SIP for those? Cost? That would have freed up some space (noting that that kills off your suggestion in the first video of how you can run traces under the resistor bodies). I’ll have to look at your finished Rev B to see just how many traces are actual run under the resistors. That may put to bed my idea. 😊
@lodevijk12 жыл бұрын
If I were to do one thing to save some space here it would be to mount the resistors vertically, so that they don't take up a centimeter of space.
@kildas12 жыл бұрын
I think You can make this design easier by using SMD parts. The biggest SMD components are fairly easy to solder even for hobbyst. SOTx packages arent that bad either.
@EEVblog12 жыл бұрын
@KiloSierraAlpha Nope! I always manually route.
@oBsRVr66612 жыл бұрын
@MrStemkilla The case of the box the PSU will be mounted in dictates the shape of his PCB. You could always use a bigger box, eh? :)
@pyroesp12 жыл бұрын
Awesome video, as always !
@lodevijk12 жыл бұрын
@oBsRVr666 I know that, but the thing is that all of the resistors on that board are horizontally mounted. If it were me, I'd have no qualms to mount some of them in a different way to save space.
@akompsupport12 жыл бұрын
These videos are amazing!
@METALsyndr0me12 жыл бұрын
This is so cool.
@ornotermes12 жыл бұрын
One way to save space could be to replace R46 - R53 with a SIL resistor.
@o0Adun0o9 жыл бұрын
Why didn´t You use a Top GND Polygon?
@oBsRVr66612 жыл бұрын
@gbowne1 The shape of the PCB follows the inside of a certain project box Dave decided to use. I assume he can't make it any bigger than that.
@lazerusmfh12 жыл бұрын
@kikilosabeyno This will be a kit that you assemble, so no SMD for ease of soldering.
@friedmule54033 жыл бұрын
EEVblog would a 4 layer board not have made it simpler? I know it may cost more but placing signal, ground, power and signal?
@lazerusmfh12 жыл бұрын
@kildas While true, people still complain. and it is a lot easier to mess up a hand soldered SMD board, when you have a lot of components.
@shmore12 жыл бұрын
Love these videos
@brianmcenulty12 жыл бұрын
@AxelWiresmith Eagle (by CadSoft) works great
@insonicbloom12 жыл бұрын
@kiyotewolf it's a public comment section, therefore it's anyones business, if you want privacy I suggest you contact him via email otherwise whatever anyone says is open to everyone
@insonicbloom12 жыл бұрын
@heroineworshipper why on earth would you think not having a schematic done first is a good idea?
@lazerusmfh12 жыл бұрын
@Nickafyit in this sense, a VIA means a Drill hole, that is plated through, or in other words, it joins a connection from the top layer to the bottom layer, so you can run a trace on both the bottom, and the top, and connect them.
@spunts1449 жыл бұрын
I really want to buy one of your portable microPSU's D:
@mrcampbell76743 жыл бұрын
Would you ever just re-do the layout from scratch vs trying to edit an existing layout?
@oBsRVr66612 жыл бұрын
@lodevijk Could be hard to run as many tracks underneath a vertically mounted resitor ... Just saying.
@BarsMonster12 жыл бұрын
Apparently you don't like to use SMD jumpers to simplify 2-sided routing... :-D
@chair5474 жыл бұрын
honestly for simple boards i usually just redo them
@ashleyhughes39812 жыл бұрын
Hmm I struggle at routing a board with quarter of the parts. Your doing this like a machine
@IIGrayfoxII11 жыл бұрын
What do you want to design? I use a program called Pad2Pad. It is kinda easy to learn and use. Another is PCB express but this has issues on printing.
@music99matt5 жыл бұрын
isn't it bad to have a track going over so many vias? (R1 through R10) Or if they are completely surrounded it's ok? what about R35-R45?
@ILoveCiniminis12 жыл бұрын
I would realy appreciate if ucould make some computer hardware tutorials split to many parts for newbies and step by step u could go with them to more advanced tutorials. Also your videos are still super cool, Thanks 8}
@MacGuffin112 жыл бұрын
@m4ge123 Looks perfect... Thankyou :D
@RandyLott12 жыл бұрын
Are there specific guidelines that need to be taken for routing SPI, i2c, or UART lines?
@manojkumarsubramaniam79915 жыл бұрын
just make sure you have a grounds down them. they are not very high frequency but due to fast transition they have some high freq component. Will save our ass from issue like cross talks and noise
@Regular678212 жыл бұрын
@KiloSierraAlpha Dave doesn't like auto layout.
@nikolaradakovic50508 жыл бұрын
thanks krokodyl
@szymz1911 жыл бұрын
Hi there, I'm looking for an idea for pcb. I want to design something complicated and big like A4 sheet size. RF is not an option so PC mainboard is out of consideration. Do you have some idea what could that be?
@knodelcrafter68885 жыл бұрын
szymz19 Then you have to do a big and complicated project and integrate everything on one board... Maybe you want to make an automated car and integrate the power supply the servo drivers maybe camera headers for computer vision controllers sensors with servos (like a lidar)... maybe you can think of more... RC won’t be a problem after you managed such a large thing! Just look around the internet for other projects and integrate everything that could remotely fit 😂
@Polished_Perspective12 жыл бұрын
I assume you are going to be selling these in EEVblog shop. Do you know what price tag will go on it?
@ChenxiangHsu12 жыл бұрын
Hey, Dave. Have you fixed the DAC 's problem since Part 8 ? I am just so eager that how you to solve a problem .
@nikolaradakovic50508 жыл бұрын
Dear Dave, Regarding high speed design rules, every chip manufacturer has it's own rules of thumb for high speed PCB design. Is there any reference manual or book comprising all the rules generally used in high speed PCB design?
@krokodyl12208 жыл бұрын
+Nikola Radakovic I highly recommend "High Speed Digital Design: A Handbook of Black Magic"
@mm503212 жыл бұрын
Is this going to be in your store
@oBsRVr66612 жыл бұрын
@heroineworshipper Seriously? Try working on a very complex design that way (without a schematic). You will most likely mess up something. You will also lose a big bunch of benefits that way. Like cross checking between schematic and PCB. Labourintensive work, imo. Back to the 1970. :P
@praveshvats43210 жыл бұрын
Why I can't download this video using IDM ?
@TurboHawkV610 жыл бұрын
E'ryday I'm shufflin'
@nickwallette620110 жыл бұрын
Girl look at that schematic... Girl look at that schematic... I layout...
@jasonstraurss69748 жыл бұрын
hay dave, thanks for the awesome video's! just want to ask where you learnt how to read and design pcbs?
@Carnivorecorey7 жыл бұрын
Jason Straurss a combination of his engineering degree and tinkering around
@jasonstraurss69747 жыл бұрын
haha just need a degree then, damn, thanks Corey
@Carnivorecorey7 жыл бұрын
Jason Straurss not at all!! Keep watching these sorts of KZbin videos, tinker around yourself, trial and error and you'll get there
@PD2DXN12 жыл бұрын
Can I download the pcb design somewhere?
@SjoerdBeukers12 жыл бұрын
nice patypus
@TOinaeraser12 жыл бұрын
One more thing. The other major critism with this project is Dave's choice of Altium Designer. I'm going to start a religious war here and straight up say: Eagle is a piece of shit. Having used both, Altium, while still a royal pain in the ass, is not nearly as annoying as Eagle. Plus Dave has used Altium seriously for years, so there is no compelling reason for him to use a new package for one project. Open source hardware or not. /Endrant
@cimmerian1005 жыл бұрын
meow 14:05
@mm503212 жыл бұрын
@eevblog
@michelfeinstein11 жыл бұрын
Hi Dave, why did you use a resonator instead of a crystal? and why AVR, since you rather PICs? Thanks for the video!