0x10f<p>The building blocks I use in my circuit diagrams. Everything is laid out on a 7*9-pixel grid (the overlines of active low signals need space). I've had to shorten the signal names to 3 letters, though.<br><a href="https://tech.lgbt/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a></p>
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#electronics
17 posts · 16 participants · 0 posts today
Nullstring 🏴☠️<p>any other adults in <a href="https://infosec.exchange/tags/colorado" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>colorado</span></a> in the general area between pueblo and denver enjoy things like: making <a href="https://infosec.exchange/tags/music" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>music</span></a>, <a href="https://infosec.exchange/tags/gardening" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gardening</span></a>, <a href="https://infosec.exchange/tags/smoking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>smoking</span></a> <a href="https://infosec.exchange/tags/weed" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>weed</span></a>, <a href="https://infosec.exchange/tags/hacking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hacking</span></a>, <a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a>, <a href="https://infosec.exchange/tags/3dprinting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>3dprinting</span></a>, <a href="https://infosec.exchange/tags/making" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>making</span></a> <a href="https://infosec.exchange/tags/doohickeys" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>doohickeys</span></a> in general, talking about buying old <a href="https://infosec.exchange/tags/cadillacs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cadillacs</span></a> and converting them to <a href="https://infosec.exchange/tags/lowriders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>lowriders</span></a>, <a href="https://infosec.exchange/tags/antifascism" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>antifascism</span></a>, general nerd shit? beers? eating interesting foods?</p><p>long shot here, are you also pretty lonely?</p>
Graham Sutherland / Polynomial<p>if you've been using yaqwsx's JLCPCB parametric search tool (or have been stuck using JLC's regular parts search page) I can highly recommend checking out this forked version: <a href="https://dougy83.github.io/jlcparts/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">dougy83.github.io/jlcparts/</span><span class="invisible"></span></a></p><p>it uses a new database storage approach which makes component updates orders of magnitude faster, and it comes with some additional quality of life features too. I've also got an open PR on it to significantly improve the coverage of parametric data extraction.</p><p><a href="https://chaos.social/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a></p>
Kris\Slyka<p>ok, the thing is done I think but looking at it more I really don't like the way the headers are… I was considering castellated holes but the board is gonna have wire connections so that's kinda pointless aside from looking cool (and being expensive). I just kinda want something that's more than… holes for an unpopulated header?! Am I overthinking this?!</p><p><a href="https://pawb.fun/tags/WhateverDSP" class="mention hashtag" rel="tag">#<span>WhateverDSP</span></a> <a href="https://pawb.fun/tags/electronics" class="mention hashtag" rel="tag">#<span>electronics</span></a></p>
niconiconi<p>The original simulation and dump box were too small. Here's an enlarged version of the infamous Veritasium transmission line problem. The initial transient radiation regime is more interesting than the earlier post, it radiates into both the load and into free space like a dipole antenna. <a href="https://mk.absturztau.be/tags/openEMS" rel="nofollow noopener noreferrer" target="_blank">#openEMS</a> <a href="https://mk.absturztau.be/tags/electronics" rel="nofollow noopener noreferrer" target="_blank">#electronics</a></p>
niconiconi<p>Here's the full-wave FDTD simulation of the infamous Veritasium transmission line problem (simplified for practicality), excited by Gaussian and Heaviside pulses. Clearly there are three regimes of operation, the initial radiation-like regime, the later transmission line-like regime with multiple reflections due to mismatched impedance, and presumably the final (not simulated) DC regime. I'm going to use this as a tutorial demo too. <a href="https://mk.absturztau.be/tags/openEMS" rel="nofollow noopener noreferrer" target="_blank">#openEMS</a> <a href="https://mk.absturztau.be/tags/electronics" rel="nofollow noopener noreferrer" target="_blank">#electronics</a></p>
niconiconi<p>My first draft of the <a href="https://mk.absturztau.be/tags/openEMS" rel="nofollow noopener noreferrer" target="_blank">#openEMS</a> tutorial <i>First Lessons For Circuit Designers</i> is now public. <a href="https://fasterems.github.io/openEMS-Project/python/openEMS/Tutorials/First_Lessons.html" rel="nofollow noopener noreferrer" target="_blank">https://fasterems.github.io/openEMS-Project/python/openEMS/Tutorials/First_Lessons.html</a> <a href="https://mk.absturztau.be/tags/electronics" rel="nofollow noopener noreferrer" target="_blank">#electronics</a></p>
DJ🌞:donor:<p>Welcome to the new edition of <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> everyone. The guest today is the famous ESP8266EX by Espressif, a SoC loved by many in the electronics world.</p><p>Unfortunately, the digital section is fully covered by two topmost metal layers carrying power. We do have a glorious analog/RF section though.</p><p>SiPron page: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:espressif:esp8266ex" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:espressif:esp8266ex</span></a></p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a></p>
Kris\Slyka<p>almost there >.<</p><p><a href="https://pawb.fun/tags/electronics" class="mention hashtag" rel="tag">#<span>electronics</span></a></p>
bram dingelstad :nb_flag:<p>i've made a <a href="https://gamedev.lgbt/tags/video" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>video</span></a> detailing my mini <a href="https://gamedev.lgbt/tags/rack" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rack</span></a> server project ✨<br>its made to accompany this thread, so for more details you can scroll up and/or down :)</p><p><a href="https://gamedev.lgbt/tags/DIY" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DIY</span></a> <a href="https://gamedev.lgbt/tags/3DPrinting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>3DPrinting</span></a> <a href="https://gamedev.lgbt/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SysAdmin</span></a> <a href="https://gamedev.lgbt/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Linux</span></a> <a href="https://gamedev.lgbt/tags/Electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Electronics</span></a> <a href="https://gamedev.lgbt/tags/FreeCAD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FreeCAD</span></a><br><a href="https://gamedev.lgbt/tags/Homelab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Homelab</span></a></p><p><a href="https://bram.dingelstad.works/videos/making-a-mini-server-cluster/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">bram.dingelstad.works/videos/m</span><span class="invisible">aking-a-mini-server-cluster/</span></a></p>
Dr David Mills<p>Hey you! <br>Yes you. Have you checked the batteries in the thing you haven't used for a while? No? Do it now, or as soon as possible. </p><p>This toot brought to you by a bunch of leaking Duracell and Poundshop Kodak batteries in some kit I was going to take to work today. </p><p><a href="https://8bitorbust.info/tags/battery" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>battery</span></a> <a href="https://8bitorbust.info/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a></p>
niconiconi<p>More <a href="https://mk.absturztau.be/tags/openEMS" rel="nofollow noopener noreferrer" target="_blank">#openEMS</a> documentation... How to visualize the current flowing on a parallel-plate transmission line when you transmit a Gaussian pulse using two RF ports connected across it. <a href="https://mk.absturztau.be/tags/electronics" rel="nofollow noopener noreferrer" target="_blank">#electronics</a></p>
Gareth Halfacree<p>Now that April Fool's morning is well and truly over, I'm pleased to confirm that <span class="h-card" translate="no"><a href="https://oldbytes.space/@rc2014" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>rc2014</span></a></span> isn't pulling your leg - well, not about the existence of the <a href="https://mastodon.social/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> Mini II Picasso, at least.</p><p><a href="https://oldbytes.space/@rc2014/114261520883071259" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">oldbytes.space/@rc2014/1142615</span><span class="invisible">20883071259</span></a></p><p>How do I know? Here's my hands-on review of the thing. Spoiler: it's *lovely*.</p><p><a href="https://www.hackster.io/news/science-art-and-nostalgia-combined-hands-on-with-the-rc2014-mini-ii-picasso-8686eb339d59" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">hackster.io/news/science-art-a</span><span class="invisible">nd-nostalgia-combined-hands-on-with-the-rc2014-mini-ii-picasso-8686eb339d59</span></a> </p><p><a href="https://mastodon.social/tags/VintageComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>VintageComputing</span></a> <a href="https://mastodon.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RetroComputing</span></a> <a href="https://mastodon.social/tags/Electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Electronics</span></a> <a href="https://mastodon.social/tags/Technology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Technology</span></a> <a href="https://mastodon.social/tags/Art" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Art</span></a></p>
CryogenicNighthawk<p><a href="https://openenergymonitor.org/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">openenergymonitor.org/</span><span class="invisible"></span></a></p><p>This project is hardcore! <a href="https://4d2.social/tags/OpenSource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenSource</span></a>, <a href="https://4d2.social/tags/hardware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hardware</span></a>, <a href="https://4d2.social/tags/firmware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>firmware</span></a> and <a href="https://4d2.social/tags/software" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>software</span></a>. You can buy pre-flashed hardware.</p><p>The catch? It's not clear what components to buy or why, and the setup process is so difficult, it's effectively your new hobby.</p><p>I expect it'll get better as out gets more popular and more people contribute to the documentation.</p><p><a href="https://4d2.social/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://4d2.social/tags/diy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diy</span></a> <a href="https://4d2.social/tags/OpenHardware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHardware</span></a> <a href="https://4d2.social/tags/FOSS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FOSS</span></a></p>
✨ justada :polish_cow:<p>I received an old car radio some time ago and decided to scrape components from it. One of the chips was a TEA6330T sound fader, that miraculously has a not classified datasheet ( <a href="https://pdf1.alldatasheet.com/datasheet-pdf/view/19741/PHILIPS/TEA6330T.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">pdf1.alldatasheet.com/datashee</span><span class="invisible">t-pdf/view/19741/PHILIPS/TEA6330T.html</span></a> ) so naturally i decided to bring it back to life with a custom Arduino library! <br>You can view the lib on my github here: <a href="https://github.com/adreline/TEA6330T" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">github.com/adreline/TEA6330T</span><span class="invisible"></span></a><br>The library includes functions for every option the documentation mentions. I tested it without actual speakers but the chip responded correctly to all the commands. Sound test remains on my todo list.</p><p><a href="https://eldritch.cafe/tags/arduino" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>arduino</span></a> <a href="https://eldritch.cafe/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://eldritch.cafe/tags/diy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diy</span></a> <a href="https://eldritch.cafe/tags/tech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>tech</span></a> <a href="https://eldritch.cafe/tags/sustainability" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sustainability</span></a> <a href="https://eldritch.cafe/tags/upcycling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>upcycling</span></a> <a href="https://eldritch.cafe/tags/salvage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>salvage</span></a></p>
Graham Sutherland / Polynomial<p>does anyone have a resource on how one would go about creating an IBIS model for a device that does not have published SPICE or IBIS models?</p><p>I'm looking for info on how I would go about performing the characterisation measurements, and how I would then transform that data into an IBIS model.</p><p>it doesn't need to be super accurate and I'm not measuring particularly challenging ICs. I mostly just care about having a ballpark-correct IBIS model for SI simulations in Altium.</p><p><a href="https://chaos.social/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a></p>
niconiconi<p>More <a href="https://mk.absturztau.be/tags/openEMS" rel="nofollow noopener noreferrer" target="_blank">#openEMS</a> documentation: How to use frequency-domain S-parameters to do time-domain signal integrity simulations. Pete Pupalaikis's Python package SignalIntegrity is one of the few (only?) free and open source circuit simulators that can do this. Look at the massive overshoots and rise-time degradation of this 1 Gbps waveform. :dot_udongein: <a href="https://mk.absturztau.be/tags/electronics" rel="nofollow noopener noreferrer" target="_blank">#electronics</a></p>
niconiconi<p>Never ending documentation tasks... :woozy_baa: I'd say it's a full-time task comparable to engine programming. <a href="https://mk.absturztau.be/tags/electronics" rel="nofollow noopener noreferrer" target="_blank">#electronics</a></p>
ely<p>Dear fediverse, </p><p>what is the best resource of do's and dont's for setting up a <a href="https://mastodon.green/tags/repaircafe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>repaircafe</span></a> ? </p><p>I guess not what I do with my own repairs : 40 boxes with half broken stuff from other people, waiting to find that single crucial part, schematic, or plans to fix it with a 3d printed part (to be designed and printed), actually converting my place in a <a href="https://mastodon.green/tags/dumpsterdive" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dumpsterdive</span></a> without divers. </p><p>Neither desoldering all weird parts because weird parts are difficult to get... </p><p><a href="https://mastodon.green/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://mastodon.green/tags/ewaste" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ewaste</span></a> (...)</p>
root42<p>Question to all the <a href="https://chaos.social/tags/ee" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ee</span></a> or <a href="https://chaos.social/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> experts here: I have two TI chips here. the one in the background is from 1985 and has shiny legs. The one in the foreground I bought in the last 5 years new from Mouser. It came with those tarnished legs already from the factory. Why are the legs so tarnished? What coating does TI use that makes it so black looking. I understand that back in the 70s supposedly TI used a silver coating that turned black over the decades, but this is something different...?</p>
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