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/electronics/ - Electronics Engineering

It's kinda tingly!


Winner of the 82rd Attention-Hungry Games
/tikilounge/ - Relax, take it easy

June 2019 - 8chan Transparency Report
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File: 1424371828119.jpg (33.07 KB, 180x259, 180:259, The_Art_of_Electronics.jpg)


This is the thread where students, hobbyists and experienced engineers can share literature, knowledge and advice to become better engineers, learn new skills and share ideas.

Sorry i hijacked your
"Is Horowitz and Hill's the Art of Electronics a good first text? Are there any other free resources?" thread anon, it just had some really good replies.
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Thanks for the recommendation anon, will give it a go.

File: 6403c089b032dce⋯.jpeg (125.88 KB, 640x480, 4:3, UnderNewManagement.jpeg)


As in the title, there is a new BO, and that would be me. I'm assuming this board will stay at a snail's pace with not much going on, but I'll be here.

I'll set this thread up as a meta thread and and a place for banner suggestions. If you have suggestions or concerns, let me know.

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This is 4chan's /diy/ OP for whenever they start an electronics general thread. I thought it may be useful for someone that would happen upon this board that otherwise woudn't have found this info if they no longer browse 4chan itself.

>I'm new to electronics, where to get started?

There are several good books and YouTube channels that are commonly recommended for beginners and those wanting to learn more, many with advanced techniques. The best way to get involved in electronics is just to make stuff. Don't be afraid to get your hands dirty.

>What books are there?


Getting Started in Electronics Forrest Mims III

Make: Electronics Charles Platt

How to Diagnose & Fix Everything Electronic Michael Jay Greier


All New Electronics Self-Teaching Guide: Kybett, Boysen

Practical Electronics for Inventors: Paul Scherz and Simon Monk


The Art of Electronics by Paul Horowitz and Winfield Hill

>What YouTube channels are there?










>What websites feature electronics projects or ideas?



http://makezine.com/category/electrPost too long. Click here to view the full text.

File: 9a3b187cfaeb021⋯.jpg (37.73 KB, 957x529, 957:529, mpweld.jpg)


How strong pulse I need to generate in order to fry someones electronics in pointed direction? I got the schematic, not that degenerate jewtube emps.

I'm talking serious stuff here, like back of the van.


To do it in a pointed direction you would most likely need a specialized microwave generator like a vircator.

Otherwise the electromagnetic radiation of sufficient force to work over a range to damage electronics would be penetrating in every direction unless inside a faraday cage in which case it wouldn't penetrate the cage itself.

Also electronics shielded by faraday cages would be unaffected.

All of that said, you would need a lot of power to fire the device. Electromagnetic pulses can occur when a big power transformer blows but those again affect all directions from the transformer. Most professional devices produce explosions to create a strong enough effect.

You might need a megawatt or more for the pulse for it to be effective. You could maybe use some kilowatts or less but then you might have to be really close to the target.

There's a good discussion of this in the comments on this page; https://hackaday.com/2016/10/12/become-very-unpopular-very-fast-with-this-diy-emp-generator/


I've heard of people using gunpowder to iirc shoot a maget through a copper tube which produced a directional wave

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A new server has been made due to the influx of spam in the previous one. Feel free to join (back):




But why? Every time I want to join some community they must use either discord or facebook. It's beyond hopeless at this point.



I know your feel. I wish anons were using more tox or returned to irc how it used to be in the good ol' days.



>wanting to divide the community


File: 1424352542634.jpg (340.72 KB, 1600x919, 1600:919, usb-fpga-2.13-1600.jpg)


Everything FPGA's. Post your favorite FPGA, discuss HDL languages, dev boards, projects and everything else FPGA.
17 posts and 3 image replies omitted. Click reply to view.


Doing something FPGA based for my 4th year project.

Any ideas?

Was contemplating porting DOOM to an FPGA but I don't know



That's beautiful, i should print it out and frame it.

On the same note as >>106, do you think there will ever be FPGAs with open bitstreams? Seeing as the reverse engineering of the iCE40 hasn't lead to an instant revolution and everyone jumping on board I'm skeptical.

But it would be nice, maybe for small devices or something. The GreenPAKs almost already qualify, but they're so small to be almost useless.



the easiest FPGA to learn on yourself is the Embedded Micro Mojo


–it only costs $80 US***

–it has english specs and tutorials on the EM web site

–the IDE for it is a free download on the EM web site

–most importantly–it is made to be easy to use, with an on-board co-processor to help with programming and a simplified IDE


there is official xilinx and altera boards on their sites, that cost $100-$500+

and there is cheap Chinese boards with xilinx and altera FPGAs on them

of the chinese boards–none of them have any documentation in english, and you have to know chinese to even hunt for it online

so the most popular chinese FPGA boards is the simplest ones, that only have the FPGA chip

the generic china ones with all the displays and buttons and LEDs and I/O ports *work*,,,, but they have no documentation, and there's dozens of variants

for a non-chinese newbie, attempting to get them to work is very likely to end in disappointment

***also we note: there is china clones of the Mojo for $40; they look the same but I dunno if they work the same


normal hobbyist people building normal hobby stuff wouldn't ever "need" an FPGA

the easiest example of something an FPGA is used for is machine vision systems.

you could do the same processes in software on a regular processor, but an FPGA can run them a lot faster



File: 0565494e78f575c⋯.pdf (184.74 KB, elbirtpaarserpentfpga2000.pdf)

File: 930cf79967dbd52⋯.jpg (42.72 KB, 749x520, 749:520, picoevb-hero_jpg_project-b….jpg)

Been interested in the idea of an internal encryption co-processor. But still researching.

YouTube embed. Click thumbnail to play.


Hey fellas,

Im trying to engineer a mat that picks up metal in shoes, but I dont know how processors work, basically I want to rip off the first part of the video with the handheld metal detector. The circuit board they use, is it a specific model or is it something run of the mill? I guess it needs a port for battery, a switch, the electric current circuit.


File: ae7a8eae25becfd⋯.jpg (1.33 MB, 1080x1920, 9:16, Screenshot_20190413-141749….jpg)

This would be the view of the same circuit board I found online

File: 1689d8fd087c28c⋯.jpg (422.84 KB, 800x534, 400:267, tr-909-040116.jpg)


Nothing fancy. I got a soldiering iron and an (((Amazon))) account – also are there non-pozzed online marketplaces?

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Hey /electronics/ - I wanted to ask for a quick assessment on a broken ribbon cable in a camera lens.

Is it done for good or should I have any hope in getting it repaired?


Tfw I want to delete the post, I got the PW for it but it wont do it. Feels bad. Sorry for the intrusion.


if you can find the part no problem, no solder required

How the hell did you break it in the first place ?


Electronics engineering is good to study.


You can get a circuit writing pen online scrap the sections of broke copper wire strips and write/bridge the circuits with the pen just be carful with it and the as always no 100% no guarantees but can get the job done for very cheap


I was wondering if anyone had any idea on how to make a (generic term) negative circuit? Of and idea where one could get info on engineering such circuits?

File: fe3686e4a44eb66⋯.jpg (15.41 KB, 622x143, 622:143, goodMeme.jpg)


What's some /electronics/ approved reading material pertaining to circuitry and low-level systems?


File: dd7823d81ae979d⋯.pdf (5.73 MB, Starting Electronics, Thir….pdf)

File: 83a3e3731a85aa7⋯.pdf (2.83 MB, Engineer's_Mini_Notebook,_….pdf)

I haven't really looked thoroughly through these books, but if I recall, they looked nice enough. The first few things you want to understand are things like current, voltage, resistance and ohm's law. V=IR. Build simple resistor circuits and understand how they work,then slowly add fun things like variable resistors, LEDs (diodes), capacitors, and simple chips like the 555, and logic gates.



The 7400 series are good starting chips, and can be found cheaply.

File: 1445789767246.webm (4.09 MB, 480x360, 4:3, Diy-xray-crazy.webm)


I've seen this implemented on other boards and chans with a slow post rate and I thought it would be a good idea to do it here as well.

In this thread you are encouraged to post anything you want, pictures, webms, un/finished projects, questions, stories, opinions… it doesn't matters what, as long as it is remotely related to the board.

The objective is to increase the post rate to get users to come back regularly not only to check their posts, but also other users' posts, hopefully participating in other threads more often, creating a chain reaction and thus kickstarting the community, since the current post rate must be around 3-5 posts per week.

If you see this thread you must post in it.

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File: 333155e27abb1fa⋯.jpg (204.57 KB, 850x1145, 170:229, 1414795133241.jpg)

Well, this is dead. See you on halfchan's /diy/, /diy/scord (https://discord.gg/x8uSvA), r/electronics and maybe even in freenode's IRC channel ##electronics.



Link expired. New Link:



File: a753a511e0d413f⋯.webm (5.37 MB, 1280x720, 16:9, discord.webm)


Dump the discord. Use Riot if you can't live without fancy shit, at least it won't sell everything you ever posted.


File: 4688245dfcdbcc4⋯.png (133.69 KB, 740x952, 185:238, 4688245dfcdbcc43e92898d0dc….png)

Dice rollRolled 52 (1d100)



Whoops, meant to reply to


File: c509836e12f2f0d⋯.jpg (55.04 KB, 393x540, 131:180, eti.jpg)


The content is from publications over 40 years old, but that means nothing…



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Something I hope to do is get a public archive happening of these kit instructions from the old Dick Smiths Electronics company…


File: 984f16cedeb4c54⋯.jpg (403.35 KB, 819x1080, 91:120, eti198612.jpg)

The scanning quality in this is a bit lacking…

The December 1986 issue of (Australian) ETI. About the most significant thing in this issue was the start of The Last Great Kit Computer Project we ever saw here, the Applix 1616.



File: 9c0f23649e3622c⋯.jpg (101.97 KB, 479x644, 479:644, eti198011.jpg)


A few interesting things in this– it mentions 'solid' (Lithium) battery research, has a ZX80 advertisement (and heaps of other ancient computers!), and more Dick Smith Electronics ads than you can shake your.. dick at.


I have a neighbor that dumps trash outside my front door and I need tips on if there are any key hole camera with high dpi and that can pick up audio which I can fit into the fish eye in my front door.



try www.google.com

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Where do I start? All I have mathematically is aa2 and I am self taught in C. What path should I take so I can start assembling TTL chips :). PIC not related.


Nobody uses TTL, it's been replaced by CMOS. If you just want to start assembling basic logic circuits, you can probably just read something on how logic gates work, assemble a few circuits from tutorials, and then start designing your own circuits.


>What path should I take so I can start assembling TTL chips :)

If you really want to do this, get copies of the old Forest M Mims books, Engineer's Notebook and similar titles. There is value in playing with those chips still, there are still applications for them and sure they aren't cutting edge anymore but you learn how things work, using them like building blocks, hands on, things you can put a meter on and understand it. Learn about logic gates and how they're assembled from transistors, learn how NAND gates can be assembled into almost anything logical (XORs are nice too). Learn about level shifters to interface 5v and 3.3v logic, and 5v to +12v / -12v for RS-232. Learn how gates build simple adders and counters, and how simple adders and counters build CPUs. At some point you're probably going to want to jump from putting TTL chips on breadboards to building things with gates on FPGA's and you can actually freaking build your own CPU out of a programmable chip. (You can do it with TTL too, but in this day and age only do that if you are a true autist). Grab an Arduino and play with it… then learn to use Atmel or PICs without the hand-holding of the IDE. Learn 8 and 16 bit assembly. And pick up something about the mechanical aspect of "how things work", too. Because what good is a microcontroller that can't click a solenoid to unlock a door or spin a stepper motor with a screw-drive to move a cutting tool on a lathe. Take some shit apart… learn how it works… repurpose it to do what you want. Watch some vids on youtube of what poo-in-the-loos do in their spare time… those kids play with this stuff and build things and become engineers, like American kids did in the past. I recommend "how to build a" as a search phrase to get you started.


So, I've got some questions about audio in general, and hope you goys can help me:

What is in general the difference between an AUX jack and some other audio jacks?

See my parents got a new dvdplayer, and the old one has some good speakers, but they have some weirds ass jacks.

Is there any way to tinker around with this to be able to plug it into my pc?

Will provide pics if this thread is actually in the right place.


File: 1af128e4cd4a824⋯.jpg (50.42 KB, 350x304, 175:152, Types-of-cables.jpg)

>What is in general the difference between an AUX jack and some other audio jacks?

I don't know much about this, but I assume the differences are only physical, since they all have left channel, right channel and ground. With RCA you need two wires, usually white and red, one for right and the other for left, and the outer crown is ground.

>and the old one has some good speakers, but they have some weirds ass jacks.

You can't plug speakers directly into your PC without an amplifier.


At the moment, I am trying to verify my idea for a development kit. It allows you to prototype on a breadboard without wires. Tell me what you think.


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