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Electron Injection
เข้าร่วมเมื่อ 27 มี.ค. 2019
Electron Injection is a company that makes electronics kits and tools. I, Brandon Drury, am an electrical engineer, maker, and overall scumbag. I'll be making stuff. It may be a PCB. It may be an electronics lesson. It may be a video of me making a device to shock my man parts.
AI Graphics - The Beginning to the Extermination of the Human Race?
In this video I take a look at Open AI to see what kind of graphics we can make. I'm looking for an angry Donald Trump eating a banana. That's banned. Disgusting! Oddly enough, an angry JFK eating a banana is allowed. I'm looking to add Snoop Doggy Dogg to the Last Supper painting. I'm looking for Jesus to ride a T-Rex through Times Square. Let's see what happens.
มุมมอง: 228
วีดีโอ
Altium Board Clearance After DXF Border Import
มุมมอง 4872 ปีที่แล้ว
File ... Import ... DFX Use Tools ... Convert ... Create Polygon from selected primtives Select one of the lines of the board shape and press tab to select all. Design ... Board Shape ... Define from selected objects. Put border on keep out layer using 'Design | Board Shape | Create Primitives From Board Shape' and select "Keep Out Layer". Put border on desired ground pour layer 'Design | Board...
LED Reading Light Design #3: The Case Part 1
มุมมอง 1082 ปีที่แล้ว
I've trimmed the border of the PCB to fit in the case and decided to screw directly into the PLA plastic of the 3D printed case. Now I'm trying to figure out how to make the lid fit under the faders and over the RJ45 ethernet jack. How will we solve this mess?
LED Reading Light Design #2
มุมมอง 452 ปีที่แล้ว
In this video I show how I goofed up the Kicad align footprint command in the first video. I talk about standoffs and adapting the PCB to the constraints of the mechanical design and vice versa.
LED Reading Light Design: 001
มุมมอง 882 ปีที่แล้ว
I am designing a wall-mounted reading light for my son. It'll have an ESP32 microcontroller, 5 faders to adjust colors and overall brightness, and an auto-sleep function to slowly dim the lights over time after reading time is over. It'll be 3D printed with glow-in-the-dark PLA. Why not.
LTspice Potentiometer Download and Install
มุมมอง 19K3 ปีที่แล้ว
Download: github.com/brandondrury/LTspice-Libraries Instructions are on Github if needed. LTspice does not have potentiometers. No even one measly pot. How in hell can you make such a powerful tool and not include potentiometers? What circuit DOESN'T use a pot? (Don't answer that.) This potentiometer model/component/whatever requires pasting in 2 files, added a "param" and restating LTspice. Po...
Podcast 006: A Big Mess of Electronics
มุมมอง 1013 ปีที่แล้ว
Topics I'm redoing this podcast because of noise and why that is GREAT! I finally kooked a MIDI controller to Reagan's Revenge YM3812 synth. Last week's TH-cam video was Can You Reflow Solder In The Kitchen? th-cam.com/video/ioDRD-fo0PY/w-d-xo.html Fear of selecting wrong platform (comment on Embedded.FM) A programmer without a power source Going back to Python Talk about e-gas Knipex Tools lea...
Can You Reflow Solder In the Kitchen?
มุมมอง 1.4K3 ปีที่แล้ว
I forgot to mention that I used 137C 278F Melting Point (Eutectic) solder paste. The label says 247 Solder. It was $10.99 on Amazon. I've been tempted to buy a hot plate for reflow soldering my PCBs. It occurred to me that a hot plate is nothing but an electric stove and I already have one of those. For better and worse, I also have a wife. How do balance this out? We reflow solder when she isn...
Podcast 005: Arduino Programming In Pro Products?
มุมมอง 3463 ปีที่แล้ว
Does the Arduino programming language have any place in professional products? This is a topic that comes up frequently for people that have a cool idea and feel the pull of product design but feel like maybe they are wimping out if they were to choose Arduino over Embedded C. Embedded C certainly has performance benefits, but that comes with costs of its own....TIME! In this podcast, I rant an...
5 Features The Arduino IDE Is Missing
มุมมอง 943 ปีที่แล้ว
The Arduino IDE is simple. The philosophy seems to be to have zero barriers to entry for beginners. That's great! Arduino was how I started. However, they gut the IDE to the point where programming is actually quite a bit harder and slower than it has to be. In fact, I'd argue that most of these features would be HUGE for a beginner who's overloaded with new jargon. I vote for adding these feat...
Using STM32 Blue Pill Clones in PlatformIO
มุมมอง 4.6K3 ปีที่แล้ว
1) OPEN FOLDER C:\Users\YOUR_WINDOWS_USERNAME\.platformio\packages\tool-openocd\scripts\target\ 2) OPEN FILE Open stm32f1x.cfg in text editor 3) FIND #jtag scan chain on Line #33 for me at the moment) and change it to this. #jtag scan chain if { [info exists CPUTAPID] } { set _CPUTAPID $CPUTAPID } else { if { [using_jtag] } { # See STM Document RM0008 Section 26.6.3 set _CPUTAPID 0x3ba00477 } {...
83nS GPIO Switching With Arduino STM32 Blue Pill
มุมมอง 3103 ปีที่แล้ว
It's well known that the switching time for the DigitalWrite() function in the Arduino IDE (and framework) is slow. This won't affect everyone, but if you ever run into a time-sensitive situation (like I have with my #ReagansRevenge synthesizer), the switching time of GPIO pins can be a huge deal. In this video, I show you how I managed to get 12Mhz (83nS) switching time on an STM32 Blue Pill. ...
Podcast #003 - Raspberry PI Pico vs STM32 Blue Pill
มุมมอง 8164 ปีที่แล้ว
Last week I raved at just how much I love the STM32 Blue Pill. It’s my favorite microcontroller! Well, we have a new contender. Will the Raspberry PI Pico knock the STM32 Blue Pill from its pedestal? Find out in another action-packed Electron Injection Podcast episode. (rolled eyes) Podcast Subscribe Options @ iTunes podcasts.apple.com/us/podcast/electron-injection-engineering-podcast/id1551370...
PCB Design For Beginners: Ugly Tracks Are Noisy
มุมมอง 73K4 ปีที่แล้ว
I laid out dozens and dozens of PCBs (printed circuit boards) and could never figure out why my tracks always looked crappy. It turns out that laying out "pretty" PCB tracks is just as much function as it is form. It's all a function of capacitive coupling. The short version goes likes this. If you want noise to jump from one track to another, put the tracks as close as possible. Obviously, alm...
Electronics Basics: Intuition In Resistors, Capacitors, Inductors, and Diodes
มุมมอง 3264 ปีที่แล้ว
Engineering school kicked my butt, but it seemed like I had a talent for coming up with goofed, inappropriate ways to remember tricky concepts. In this video, I compare electrical resistance to a school bus fire - A tribute to Greg Giraldo - and show why capacitors prefer AC Green to DC Young Fly. The idea is that we humans remember things better when we make them a little nasty. At least I rea...
PCB Design For Beginners: The 3D Model Is Underrated
มุมมอง 6594 ปีที่แล้ว
PCB Design For Beginners: The 3D Model Is Underrated
Podcast 002: STM32 Blue Pill, Arduino Killer
มุมมอง 4334 ปีที่แล้ว
Podcast 002: STM32 Blue Pill, Arduino Killer
THANK YOU PRESEDENT TRUMP FOR MAKE AMERICA GREAT AGAIN GOD BLESS YOU PRESEDENT TRUMP GREAT CHRISTIAN WAREOR SUN OF GOD PRINCE OF PIECE! 🇺🇲❤️✝️🇺🇲❤️✝️🇺🇲❤️✝️🇺🇲❤️✝️🇺🇲❤️✝️🇺🇲❤️✝️
changing the wiper value is the same amount of effort as changing a resister value. now i know why ltspice didn't put in a potentiometer
Well, it depends on how you are using the potentiometer. A pot can be used as a single resistor or it could be as 2 resistors that share the total resistance. So when a linear pot is set to 25%, the first resistor is 25% of maximum and the second resistor is 75% of maximum. It depends on what you are up to, but I saw value in making the potentiometer. It may not be for everybody.
I did exactly as the video instructed. The pot does not appear in my components list.
In a video of an MRI of a Thunderbolt cable, it showed some [i think microscopic] tracks that were intentionally zigg-zagged to make their length equal with the other tracks.
radioactivity by kraftwerk. .....your aaahhhh th-cam.com/video/X--F5b5IdqU/w-d-xo.html
I need a PCB DESIGNER to create a device.
Holy crap! I went to school with you! I even revised/updated your KiCad tutorial that you made for Dr. R!! Wow!! I’m glad you’re still at it!
Regarding your remark that there was too much solder paste deposited: maybe it's possible to have the stencil manufactured from a thinner plate. A thinner plate will allow for less solder paste to be deposited in the stencil cutouts. Alternatively, stencil cutouts smaller in size than the footprint could maybe work as well - the solder paste flux will take care of completely wetting /distributing the solder across the footprint during reflow.
TRACES
Thank you🎉
Do you think there's a place for prototyping mechanical with arduino and swapping to a cheaper /better alternative rout after ?
actually its distance² .. so even stronger relation
Generally incompetent 😂
Why not changing orientation of all components 90º counter-clockwise, to make all lines straight to the connector?
While a good board position is key for good designs, in many cases you just trade complexity from one side of the chip to the other. So knowing tricks is still essential. 45° for larger chips can be a really neat trick, as it's only another 45° to get to two sides of the PCB.
Thank you for the content and your time. Basic staff but most engineers struggle to find those simple tricks to create or import a PCB outline.
You might be the funniest man on youtube
Hey! This video is straight up the most informative I've watched. I'm starting to tinker around electronics and I love your humor 😂! Thanks for making it! ❤
i guess that doesnt work for a mac
thanks bro , saved me a lot of time
EMFT lecture helps
You got Joe Exotic's vibe
Hi, do you plan to release a new video or maybe even a new Podcast episode? :)
thank you
Thank you very much!
I recommend you to reflow the board again with some good old hand soldering flux like felder lötfett or something similiar, a rosin flux that is of good quality. Such fluxes work wonders for solder meniscus forming and I'm pretty sure it will align the components at the dead center. Those newer high tech fluxes never worked good enough for me, maybe I don't have the good ones.
Sharp edges are ugly, too. They act like antennas.
great man :-)
Beautiful acid traps. Keep up the good work :)
Why is every trace on the top layer? Shouldn't you really maximize the top layer for ground planes and try to route as much as you can on the bottom layer? Obviously, this is not always going to be an option, especially on 2 layer only boards. Sometimes, you have to jump from the bottom with a thru-via to the top and sometimes back again to make the connection. You now have 1000 subs. Congrats!
Thanks for the shout-out 😄
Crosstalk depends on the length of your tracks and the distance of the track from the ground plane, for a track as short as that I can't see any issue even with fast CMOS, best to use a cross-talk calculator and a practical experiment to prove this. The main goal in most PCB design exercises is to reduce current "loop area" with short tracks and ground planes. A "good looking" board is is a functional one, tracking isn't cosmetic. Your layer stack-up is also a little odd. I recommend Rob Feranec and Eric Bogatin's PCB lectures for anyone that wants to get into PCB tracking.
Yeaaa my man, SATURN PCB a good trace calculator, no need a art course to do pcb
You contradicted yourself about 20 times in this absolutely pointless video.
Kicad also has push&Shove option!
3yo video prob didn't had it at that time 😅
Why not use arcs instead?
They take longer to do than a 45 degree angle in a CAD and provide not much benefit except they "look pretty". Now-a-days it's about the speed of turnaround on the routing to final production, functionality and proper operation rather than looks. KiCAD also doesn't allow you to draw arcs on copper layers for some reason.
I'm just wondering: why didn't you turn u2 90 degree? Than your connection-path's would have been nearly straight to the Pins. Best wishes
How did you move sections of track around so easily?
I think it's either m or w in kicad
@@leandroebner1405 'd' is another way in kicad
@@leandroebner1405 I'm sure I heard him say "D".
Hi, I have two questions: 1) making these tracks equal length would help? 2) back in the day, they used to do beautiful round tracks. I wonder why isn't the case anymore?
Making traces equal length is the kind of thing you only bother to do when you really need to - just because it takes extra time and potentially extra space, so no point wasting that unless you need to. That's only really done if there's a timing margin (for example I routed some Ethernet RGMII interfaces recently and the datasheet for the PHY specified < 11ps margin between each of the five signals going in each direction). For arcs as well, I mean you can it's just it's easier to route a lot of signals with 45 degree corners, I think it's just going from hand drawn to CAD that people stopped bothering. Again it's just a matter of ease and time - the arcs look nice but take longer and don't provide much benefit. Even at microwave frequencies often you can just get by with chamfered corners (the chamfer makes up for the changing width which causes a discontinuity in the characteristic impedance of the track).
@@stephengentle2815 wow, thank you!
They don't do "rounded tracks" any more as those were hand drawn. It also takes up more board space to do an arc instead of a nice 45 degree, 45 degree turn.
The sound of your swallowing is almost comedically loud, maybe try to mix your audio differently or cut the swallows out😂
Yeah this was super distracting
@@eggyparrot3844 so it's not just me noticing it. It must have something to do with the distance to certain types of microphones.
Tracks would be prettier if they had rounded corners.
New to the channel here, nice video!
Have you considered a ground plane pour between your signal lines?
your traces are unevenly spaced and not as pretty as you think. fix the spacing and it would be chefs kiss good.
If you have OCD no education is required
By the looks of things, I would have put the chip horizontal to the connecter, rather than vertical
Would have made that side neater, but might complicate the layout to the left. The other thing is the connection at pins 1 and 16 has such a tight angle. I was always told to make pad and track connections at 90 degrees, avoiding acute angles.
I design tracks on INTERNAL layers with ground tracks between them. Ground planes top and bottom, and ROUNDED corners
For all boards? I work on too many boards where hitting a price point is more important than electromagnetic factors. At what frequency do you decide the rise time is fast enough to necessitate the extra time required for rounded corners?
@@BrandonDrury with a KiCad addon it happens in seconds by the press of a button
@@martinvollderpro Isn't it more expensive to manufacture rounded corners? Or am I imagining that.? If it's the same price to manufacture round corners, as it is to have them just make them angled, then it would seem like the automatic default of the designers, would be to always request rounded corners.
@@Inertia888 @darrick.S I didn't get extra charged for using rounded tracks. Why would it be more expensive, a rounded corner is "smoother" than a 45 degree angle thus easier to print
rounded corner make the board mechanically more solid, if the board hits a corner its less likely crack mechanically.
I get your point, IO have been doing that for decades. btw you idea of "even" spacing is not the same as mine, ...hint, outer track! :)
You made one layout mistake so; it has acute angles, e.g. circuit U2 pads 1 and 16. Acute angles cause problems during PCB fabrication, particularly the etch.
yes, that indeed used to be true 30 years ago gramps, times change, no issue for modern fabs
Angles of 45 degrees between pad and track on U2 pin 1 and 16. Altium can warn you on that. 45 degree angles are bad for the edging process.
The only concern with 45 degree angle tracks is at very high frequencies. Reflections will bounce back from a 45 degree angle. I guess I need to pull out the books to see which frequency that starts to matter. If I had to guess, I'd say anything less than 100Mhz is totally safe. I could be wrong on that. Keep in mind that every via is a 90 degree angle and it's impossible to make a dense board without a zillion vias.
@@BrandonDruryI think he means that <90 degree angles can cause problems during PCB etching. My understanding is that this isn’t really a concern anymore with modern PCB production processes.
@@tookitogoYou're right, it really doesn't matter.
I've done nice boards in kicad and sent them off to be done by pcbway/jlpcb etc, but what I wish for most of all is a way to simply output my design (copper front/rear) as a simple BW bitmap for my laser to do a mask etc. it outputs svg in the strangest way possible with a layer for everything... if you just 'print' the board I get a lovely set of tracks on my epson so it can reduce the board to BW single layer, just wont export it as such!
Have you seen some of the 3D printing guys using the UV screen of their resin printer for setting a board before etching?
I wonder if it can be done from the Gerber viewer?
@@DeShark88 oh theres an idea. I could also have a word with the laser softwares writer, see if he has an idea how to convert the kicad svg into something the software can read. kicad exports a white square as board area, the laser engraves it onto the pcb resist, so just one big square of bare copper lol
@@welshdave5263 yes i did think of trying to print the tracks on the board just with my pla printer, but lightly spraying a board with some black rattle can paint and putting it in my laser engraver seems an easier method. this summer i'l have the time (and hopefully money) to build an a3/a2 sized cnc and more powerful laser
@lezbriddon is seen laser etched spray paint done here. Also seen PLA printers with a waterproof permanent marker attached and used as a plotter to draw the tracks etc before etching the still bare copper.
The tracks near C9 looks like a nice pair of balls...
It is a special design for discharging!