/r/electronics
Discussion and news about component-level electronic circuits.
A subreddit dedicated to news, articles and general discussions related to the field of electronic engineering.
Rules
Be civil: Do not insult fellow Redditors. Do not yell. As this is a professional sub, act and speak professionally.
The focal point of a submission must be component-level electronic engineering, design, news, and circuits (with at least one active element: a semiconductor or a vacuum tube/valve). See below for off-topic subjects.
No commercial or promotional posts: advertising, endorsing or praising a company, fundraising and crowdfunding, giveaways, sponsored products and services, selling, offers, product announcements and information, blogs, videos, pictures of / links to commercial boards. Applicable even if free or if submitter does not benefit monetarily. This sub abides strictly to Reddit's Rules of Self-promotion. [Post offers related to electronic engineering in /r/ElectronicsList]
Add a flair your submission.
- 'Project' must link to full (non-commercial) build instructions. Otherwise, use 'Gallery'.
- 'Tip" is for tricks and suggestions useful to the electronics designer
Off topic
- 2a) Ready-made electronic assemblies (e.g., a Single-Board-Computer - Arduino. PI -, a relay module, a computer mouse); projects that are based entirely on such ready-made electronics assemblies (e.g., a green-house watering system that uses an Arduino and no other electronic components)
- 2b) Plain electrical components and circuits (no active components), such as transformers, relays, resistors, light bulbs, cables, batteries, connectors, sensors)
- 2c) Consumer products (marketed as "electronics") or self-made products, even if historically significant. Do not post an enclosed assembly just because it contains 'electronics' internally
- 2d) Questions [Ask questions about electronic circuits and components in /r/AskElectronics]
- 2e) Memes (pictures w/text), low effort ("shit-posts"), as decided by the mods. [If about electronic circuits and components, post in /r/ElectronicsHumor]
- 2f) Labs and test equipment [If electronics, post them here on a Wednesday. No submissions that may be considered to be focusing on equipment brands rather than technical merit. One submission a week max.]
---- Click HERE for our Wiki ----
Tags / Flairs
Please categorize your post by clicking the "add tag" (flair) button after submitting it.
Click a tag name below to view just the posts in that category
CLICK HERE TO RESET TAG FILTER
General pictures or videos related to component-level electronic engineering (See posting Rule #1).
Videos with commercial content or sponsorship/patronage requests are likely to be removed; repeat offenders may be banned from the sub. If in doubt, contact the mods before posting.
Electronic engineering-related posts that don't fall into any other category.
An electronic engineering-related news article or announcement.
Show us your (or someone else's) electronic circuit design and/or final build.
If you are just posting pictures or videos with no further write-up, please use the 'Gallery' tag.
Videos with commercial content or sponsorship/patronage requests are likely to be removed; repeat offenders may be banned from the sub. If in doubt, contact the mods before posting.
To qualify as a project, the details available should allow someone else to make a copy.
NB: This is for original work - pictures of stock kit builds will be deleted.
A useful or insightful technical note on component selection, circuit design or testing etc. - something beyond 'stick decoupling caps everywhere'!
Related subreddits
- Ask Electronics
- Electrical and Computer Engineering
- Digital Electronics
- Logisim digital circuit simulator
- FPGAs
- DSP
- PLC - Programmable Logic Controllers
- PrintedCircuitBoard
- RF Electronics
- Electronic Circuits
- ECE Component Exchange
- Nice Chips
- AppNotes
- The AmpHour
- Hardware Startups
- Engineering
- Amateur Radio
- Car Hacking
- DIY Tubes
Electronic circuit design and repair questions go in /r/AskElectronics •
View and contribute to our wiki page for beginners
Banner from original picture by Sergej Klammer (/u/zappadoing). Used with permission. Licence: CC-BY-SA*
↓ (please edit!)
/r/electronics
1,127,812 Subscribers
Check out this PCB I designed
19:29 UTC
These absolutely cursed AI generated components
21:05 UTC
Going for a DIP.
18:36 UTC
Weekly discussion, complaint, and rant thread
Open to anything, including discussions, complaints, and rants.
Sub rules do not apply, so don't bother reporting incivility, off-topic, or spam.
Reddit-wide rules do apply.
To see the newest posts, sort the comments by "new" (instead of "best" or "top").
15:00 UTC
Sometimes you just gotta make it work...
14:24 UTC
My first flyback high voltage generator
I recently made a 555 flyback high voltage generator. It uses a 555 timer whose output goes into a BJT to drive a mosfet which switches current to my primary coil (8 turns).
03:18 UTC
Short a battery and you die, but forget to short a capacitor and you will die.
Body text pog
21:05 UTC
i know it's nothing special, but im super proud of my first pcb!
23:15 UTC
Weekly discussion, complaint, and rant thread
Open to anything, including discussions, complaints, and rants.
Sub rules do not apply, so don't bother reporting incivility, off-topic, or spam.
Reddit-wide rules do apply.
To see the newest posts, sort the comments by "new" (instead of "best" or "top").
15:00 UTC
My first ever DIY remote controlled robot!
16:22 UTC
A piece of history (50 bytes of magnetic memory)
Someone today showed me this and I wanted to share it somewhere. Those are 50 bytes of memory and you can count every single bit! My mind blew away when he took this out of a box. I don't know if it's the right place tho 😬
18:56 UTC
Moved in 12 months ago, finally built a dedicated workbench for the first time
I’ve always had a makeshift workbench all my life, finally own a house with space that is just mine to do what I want with.
22:19 UTC
Ouch
I touched the back of a 40kHz ultrasonic transducer.
16:55 UTC
Another 3070 card, this time it’s the main CPU card
Motorola 68060 series CPU.
19:43 UTC
Weekly discussion, complaint, and rant thread
Open to anything, including discussions, complaints, and rants.
Sub rules do not apply, so don't bother reporting incivility, off-topic, or spam.
Reddit-wide rules do apply.
To see the newest posts, sort the comments by "new" (instead of "best" or "top").
15:00 UTC
What is the most disgusting electronic thing you have seen or repaired?
I used to do CCTV repairs for cameras that were installed in prison cells. They were those super fancy ones that are mounted on the top of the cell in the corner with nothing to grab onto, so the prisoners can't take them off the wall. Occasionally I'd get one that came into the repair centre that I managed, and they ALL smelled of pee and turds. I actually saw some dried brown smelly stuff in one of the cracks in the camera....Needless to say I wore gloves and sanitized all the tools afterward, as well as billing the customer extra for the cleaning I had to do + "hazard money".
Another notable mention was an old lady's desktop that kept shutting down on its own. I opened up the case and there was a severe ant infestation along with spider webs all over it. Turns out her grandson somehow managed to spill some food inside the case (don't ask me how), which led to the infestation.
What's the worst, most filthy electronic device you've ever seen or repaired?
05:02 UTC
my MPPT solar charge controller
My current design on a MPPT solar charge controller i am designing for fun. A standard buck MPPT has issues with current feedback with no solar power, so i thought why not add a boost stage, now i can charge batteries at super low light levels, and no current from the battery through the panel at night. decided on a 555 timer charge pump to get around the duty cycle limit of high side nmos bootstrap gate drivers. This will eventually have a 12 or 15v supply for gate drivers and 555, and be able to accept battery and solar panel voltages up to around 60v
09:57 UTC
Weekly discussion, complaint, and rant thread
Open to anything, including discussions, complaints, and rants.
Sub rules do not apply, so don't bother reporting incivility, off-topic, or spam.
Reddit-wide rules do apply.
To see the newest posts, sort the comments by "new" (instead of "best" or "top").
15:00 UTC