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IT News2025 One Hertz Challenge: Using Industrial Relays to Make a Flasher - These days, if you want to flash some LEDs, you’d probably grab a microcontroller.... - <a href="https://hackaday.com/2025/08/10/2025-one-hertz-challenge-using-industrial-relays-to-make-a-flasher/" rel="nofollow noopener" translate="no" target="_blank">https://hackaday.com/2025/08/10/2025-one-hertz-challenge-using-industrial-relays-to-make-a-flasher/</a> <a href="https://schleuss.online/tags/2025hackadayonehertzchallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#2025hackadayonehertzchallenge</a> <a href="https://schleuss.online/tags/flashercircuit" class="mention hashtag" rel="nofollow noopener" target="_blank">#flashercircuit</a> <a href="https://schleuss.online/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a> <a href="https://schleuss.online/tags/electronic" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronic</a> <a href="https://schleuss.online/tags/contests" class="mention hashtag" rel="nofollow noopener" target="_blank">#contests</a> <a href="https://schleuss.online/tags/flasher" class="mention hashtag" rel="nofollow noopener" target="_blank">#flasher</a> <a href="https://schleuss.online/tags/relay" class="mention hashtag" rel="nofollow noopener" target="_blank">#relay</a>

The GregzoneMade progress on getting the broken Roland SoundCanvas SC-55mkII that I got for cheap on eBay to work! I was fairly sure a clock signal (or rather the absence of one) was the culprit, and after poking around the board tracing clock signals I found a spot where one abruptly stopped. Turns out a 40MHz low-pass filter was missing entirely from the board! After bodging it with a wire (since it’s just a filter, so the worst that happens is noise causes occasional problems), the unit came up! 🎉 But the display has issues. Half of it is dead, and the first letter of the instrument name is garbled. This appears unrelated to the first problem, and suggests an issue with the display board itself; all lines going to the display look good.Given that another filter on the board was already bodge-wired, and a 455MHz crystal (only needed for the remote) was cut out, *and* given this display problem, I think this may have been a parts unit for someone.<a href="https://retro.pizza/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a> <a href="https://retro.pizza/tags/roland" class="mention hashtag" rel="nofollow noopener" target="_blank">#roland</a> <a href="https://retro.pizza/tags/soundcanvas" class="mention hashtag" rel="nofollow noopener" target="_blank">#soundcanvas</a> <a href="https://retro.pizza/tags/vintageelectronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#vintageelectronics</a> <a href="https://retro.pizza/tags/synth" class="mention hashtag" rel="nofollow noopener" target="_blank">#synth</a>

ilias :thepiratebay:so true<a href="https://mstdn.social/tags/Electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#Electronics</a> <a href="https://mstdn.social/tags/Embedded" class="mention hashtag" rel="nofollow noopener" target="_blank">#Embedded</a>

jnpnEven a good old 386 can feel complex and futuristic <a href="https://www.righto.com/2025/08/intel-386-package-ct-scan.html" rel="nofollow noopener" translate="no" target="_blank">https://www.righto.com/2025/08/intel-386-package-ct-scan.html</a><a href="https://mastodon.social/tags/cpu" class="mention hashtag" rel="nofollow noopener" target="_blank">#cpu</a> <a href="https://mastodon.social/tags/die" class="mention hashtag" rel="nofollow noopener" target="_blank">#die</a> <a href="https://mastodon.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a>

Eka A.<a href="https://tech.lgbt/@dotjayne" class="u-url mention" rel="nofollow noopener" target="_blank">@dotjayne</a> ...heating up my reflow oven...A long time ago I turned an old toaster oven into a reflow oven. Makes depopulation PCBs fast. <a href="https://spacey.space/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a> <a href="https://spacey.space/tags/maker" class="mention hashtag" rel="nofollow noopener" target="_blank">#maker</a>

Stewart RussellTalking of MicroPython, these are not bad at all: RP2040-Zero. They're a Waveshare thing, a cut-down Raspberry Pi Pico.Universal Solder (in Windsor, ON) have a sale on, and have these boards for $4 each: <a href="https://www.universal-solder.ca/product/rp2040-zero-compatible-with-raspberry-pi-pico/" rel="nofollow noopener" translate="no" target="_blank">https://www.universal-solder.ca/product/rp2040-zero-compatible-with-raspberry-pi-pico/</a><a href="https://xoxo.zone/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a> <a href="https://xoxo.zone/tags/MicroPython" class="mention hashtag" rel="nofollow noopener" target="_blank">#MicroPython</a>

JimmyChezPants 🇨🇦Hey <a href="https://growers.social/tags/Electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#Electronics</a> <a href="https://growers.social/tags/Batteries" class="mention hashtag" rel="nofollow noopener" target="_blank">#Batteries</a> So I'm a bit unclear on something with a #18650 <a href="https://growers.social/tags/BMS" class="mention hashtag" rel="nofollow noopener" target="_blank">#BMS</a> - specifically, a 3s6p 12v battery pack with integrated BMS, that arrived with two pairs of Red/Black wires coming out of it, one with a barrel jack and the other just wires, and zero explanation, this is clearly an "obvious" situation to people with the slightest bit of experience. Have also ordered an appropriate 12.6v charger, once I sorted out what was required there. Waiting for it to arrive, have not used the battery pack yet. This is intended for a Pi5 with a HifiBerry amp in a "Ghetto Blaster" type configuration, for use during yard work and other mobile audio needs. What I'm wondering is, if I've got it running on batteries, and I plug the charger in, is that safe? Will it recharge the batteries while continuing to supply power to the device in a smooth fashion? Or do I need to acquire another UPS-type board to add to the innards?

PaulFound it! There was an optical limit switch that I missed. I think the LED died, and fortunately, it was really easy to open up and swap out the LED. Just needed some trial and error to find one bright enough in the right wavelengths. <a href="https://oldbytes.space/tags/penPlotter" class="mention hashtag" rel="nofollow noopener" target="_blank">#penPlotter</a> <a href="https://oldbytes.space/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a> <a href="https://oldbytes.space/tags/retroComputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#retroComputing</a>

PaulSoo… I bought another plotter. It was close by, dirt cheap, and came with some other goodies I’ll share later. On power up, the pen carriage homes all the way to the right, but never stops. I don’t see any limit switches, and it goes on for much longer than it would take to do the entire travel. There’s this flywheel looking thing labeled Ferrofluidics corp, which looks suspiciously fancy (it’s got a serial number). The stepper motor has 8 wires. So.. what gives? Anyone know how a mechanism like this would have homed itself, or what that mysterious blue object is? It’s an intriguing mystery… plus I’d love to actually get this working; it’s a nice medium size between my other two plotters. <a href="https://oldbytes.space/tags/penPlotter" class="mention hashtag" rel="nofollow noopener" target="_blank">#penPlotter</a> <a href="https://oldbytes.space/tags/stepperMotor" class="mention hashtag" rel="nofollow noopener" target="_blank">#stepperMotor</a> <a href="https://oldbytes.space/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a> <a href="https://oldbytes.space/tags/retroTech" class="mention hashtag" rel="nofollow noopener" target="_blank">#retroTech</a> <a href="https://oldbytes.space/tags/retroComputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#retroComputing</a>

polprog68kAD8317 detector, not the best, but good enough :) <a class="hashtag" href="https://pleroma.m68k.church/tag/electronics" rel="nofollow noopener" target="_blank">#electronics</a>

Ilkka TengvallSending rocket to moon while also inventing powder.<a href="https://mementomori.social/tags/ibanez" class="mention hashtag" rel="nofollow noopener" target="_blank">#ibanez</a> <a href="https://mementomori.social/tags/guitar" class="mention hashtag" rel="nofollow noopener" target="_blank">#guitar</a> <a href="https://mementomori.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a>

masukomiTIL about "Capacitive Coupling" Check out this fascinating few seconds of video of an antenna being connected to a radio without ever touching it.<a href="https://www.reddit.com/r/amateurradio/comments/1mksy01/what_in_the_world_is_going_on_here/" rel="nofollow noopener" translate="no" target="_blank">https://www.reddit.com/r/amateurradio/comments/1mksy01/what_in_the_world_is_going_on_here/</a><a href="https://connectified.com/tags/HamRadio" class="mention hashtag" rel="nofollow noopener" target="_blank">#HamRadio</a> <a href="https://connectified.com/tags/Electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#Electronics</a>

DJ🌞:donor:Hello and welcome to this installment of <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener" target="_blank">#nakeddiefriday</a>! Today's guest of honour is one КР556РТ4, a Soviet clone of 82S126 the 256x4 TTL PROM.A very short thread.SiPron page: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:gamma:kr556rt4" rel="nofollow noopener" translate="no" target="_blank">https://siliconpr0n.org/archive/doku.php?id=infosecdj:gamma:kr556rt4</a><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener" target="_blank">#reverseengineering</a> <a href="https://infosec.exchange/tags/icre" class="mention hashtag" rel="nofollow noopener" target="_blank">#icre</a>

catppuccin-macchiato-official · any/all [Astreaprtcl]eroticism of the machine

Embedded PodcastJoin Chris( <a href="https://stoney.monster/@stoneymonster" class="u-url mention" rel="nofollow noopener" target="_blank">@stoneymonster</a> ) and Elecia( <a href="https://mastodon.online/@logicalelegance" class="u-url mention" rel="nofollow noopener" target="_blank">@logicalelegance</a> ) on the latest episode( <a href="https://embedded.fm/episodes/507" rel="nofollow noopener" translate="no" target="_blank">https://embedded.fm/episodes/507</a> ) of Embedded as they chat about books, courses, alternate podcasts, electronics, statistics, kidnapping Roo, and journaling failures. Thank you to Mouser Electronics for sponsoring the show!<a href="https://mstdn.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a> <a href="https://mstdn.social/tags/books" class="mention hashtag" rel="nofollow noopener" target="_blank">#books</a> <a href="https://mstdn.social/tags/podcast" class="mention hashtag" rel="nofollow noopener" target="_blank">#podcast</a> <a href="https://mstdn.social/tags/journaling" class="mention hashtag" rel="nofollow noopener" target="_blank">#journaling</a> <a href="https://mstdn.social/tags/courses" class="mention hashtag" rel="nofollow noopener" target="_blank">#courses</a> <a href="https://mstdn.social/tags/embedded" class="mention hashtag" rel="nofollow noopener" target="_blank">#embedded</a> <a href="https://mstdn.social/tags/engineering" class="mention hashtag" rel="nofollow noopener" target="_blank">#engineering</a>

mmu_manThis VGA monitor is missing the green color. I found a bad transistor that we'll need to replace.And I changed my streaming setup… so it needs some testing!<a href="https://www.twitch.tv/mmu_man" rel="nofollow noopener" translate="no" target="_blank">https://www.twitch.tv/mmu_man</a><a href="https://youtube.com/live/8u1jOpOsc2Y" rel="nofollow noopener" translate="no" target="_blank">https://youtube.com/live/8u1jOpOsc2Y</a><a href="https://m.g3l.org/tags/LiveAtFabrico" class="mention hashtag" rel="nofollow noopener" target="_blank">#LiveAtFabrico</a> <a href="https://m.g3l.org/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#RetroComputing</a> <a href="https://m.g3l.org/tags/CRT" class="mention hashtag" rel="nofollow noopener" target="_blank">#CRT</a> <a href="https://m.g3l.org/tags/repair" class="mention hashtag" rel="nofollow noopener" target="_blank">#repair</a> <a href="https://m.g3l.org/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a>

okra :genderqueer_flag:Here's my latest projects from <a href="https://mastodon.art/@cgcookie" class="u-url mention" rel="nofollow noopener" target="_blank">@cgcookie</a> 's CORE Fundamentals course.For the cup I also played around with shading a bit more. I'm not completely new to blender, in fact I have been playing around with it for years, even before 2.8. But now I'm taking the time to learn it more seriously. :)<a href="https://ohai.social/tags/blender3d" class="mention hashtag" rel="nofollow noopener" target="_blank">#blender3d</a> <a href="https://ohai.social/tags/learning" class="mention hashtag" rel="nofollow noopener" target="_blank">#learning</a> <a href="https://ohai.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a> <a href="https://ohai.social/tags/ceramics" class="mention hashtag" rel="nofollow noopener" target="_blank">#ceramics</a> <a href="https://ohai.social/tags/fediart" class="mention hashtag" rel="nofollow noopener" target="_blank">#fediart</a> <a href="https://ohai.social/tags/mastoart" class="mention hashtag" rel="nofollow noopener" target="_blank">#mastoart</a>

Rod2ik 🇪🇺 🇨🇵 🇪🇸 🇺🇦 🇨🇦 🇩🇰 🇬🇱☮🕊️<a href="https://mastodon.social/tags/Trump" class="mention hashtag" rel="nofollow noopener" target="_blank">#Trump</a> Plans 100% Tariff On <a href="https://mastodon.social/tags/Computer" class="mention hashtag" rel="nofollow noopener" target="_blank">#Computer</a> <a href="https://mastodon.social/tags/Chips" class="mention hashtag" rel="nofollow noopener" target="_blank">#Chips</a>, Unless Companies Build In <a href="https://mastodon.social/tags/US" class="mention hashtag" rel="nofollow noopener" target="_blank">#US</a>, a move that will likely <a href="https://mastodon.social/tags/raise" class="mention hashtag" rel="nofollow noopener" target="_blank">#raise</a> the <a href="https://mastodon.social/tags/cost" class="mention hashtag" rel="nofollow noopener" target="_blank">#cost</a> of <a href="https://mastodon.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a>, <a href="https://mastodon.social/tags/autos" class="mention hashtag" rel="nofollow noopener" target="_blank">#autos</a>, <a href="https://mastodon.social/tags/household" class="mention hashtag" rel="nofollow noopener" target="_blank">#household</a> <a href="https://mastodon.social/tags/appliances" class="mention hashtag" rel="nofollow noopener" target="_blank">#appliances</a> and other essential goods. Probably worldwide... not only in the <a href="https://mastodon.social/tags/US" class="mention hashtag" rel="nofollow noopener" target="_blank">#US</a><a href="https://www.huffpost.com/entry/trump-computer-chip-tariffs_n_6893de89e4b0a1fdf7a9ce3c" rel="nofollow noopener" translate="no" target="_blank">https://www.huffpost.com/entry/trump-computer-chip-tariffs_n_6893de89e4b0a1fdf7a9ce3c</a>

Nonilex<a href="https://masto.ai/tags/Trump" class="mention hashtag" rel="nofollow noopener" target="_blank">#Trump</a> said Wednesday that he will impose a 100% <a href="https://masto.ai/tags/tariff" class="mention hashtag" rel="nofollow noopener" target="_blank">#tariff</a> on <a href="https://masto.ai/tags/ComputerChips" class="mention hashtag" rel="nofollow noopener" target="_blank">#ComputerChips</a>, likely raising the cost of <a href="https://masto.ai/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a>, <a href="https://masto.ai/tags/autos" class="mention hashtag" rel="nofollow noopener" target="_blank">#autos</a>, household <a href="https://masto.ai/tags/appliances" class="mention hashtag" rel="nofollow noopener" target="_blank">#appliances</a> & other goods deemed essential for the <a href="https://masto.ai/tags/digital" class="mention hashtag" rel="nofollow noopener" target="_blank">#digital</a> age."We'll be putting a tariff on of approximately 100% on <a href="https://masto.ai/tags/chips" class="mention hashtag" rel="nofollow noopener" target="_blank">#chips</a> & <a href="https://masto.ai/tags/semiconductors" class="mention hashtag" rel="nofollow noopener" target="_blank">#semiconductors</a>," [sic] Trump said…. "But if you're building in the United States of America, there's no charge."<a href="https://masto.ai/tags/economy" class="mention hashtag" rel="nofollow noopener" target="_blank">#economy</a> <a href="https://masto.ai/tags/inflation" class="mention hashtag" rel="nofollow noopener" target="_blank">#inflation</a> <a href="https://masto.ai/tags/PersonalFinance" class="mention hashtag" rel="nofollow noopener" target="_blank">#PersonalFinance</a> <a href="https://masto.ai/tags/business" class="mention hashtag" rel="nofollow noopener" target="_blank">#business</a> <a href="https://masto.ai/tags/recession" class="mention hashtag" rel="nofollow noopener" target="_blank">#recession</a> <a href="https://masto.ai/tags/Trumpcession" class="mention hashtag" rel="nofollow noopener" target="_blank">#Trumpcession</a> <a href="https://www.pbs.org/newshour/politics/trump-says-he-plans-to-put-100-tariff-on-computer-chips-likely-increasing-electronics-costs" rel="nofollow noopener" translate="no" target="_blank">https://www.pbs.org/newshour/politics/trump-says-he-plans-to-put-100-tariff-on-computer-chips-likely-increasing-electronics-costs</a>

Chris Alemany🇺🇦🇨🇦🇪🇸initial pump testing has been successful! Filled the filter and pump bay to an approriate level via garden hose. ✅ turned pump on for the first time and fixed any overflows in the system on low flow ✅ turned the garden hose off and allowed pump to circulate for awhile ✅ I brought the pump up to 100% power (180W) and confirmed inlet standpipe did not overflow indicating good distribution flow on the bottom of the filter. ✅ identified/fixed more overflowing low points with pump at high flow. ✅ tested the breather pipe by turning off the pump and making sure the water was not siphoned from the filter the pump bay ✅ I let the top water from the filter drain into the bay until the bay was full (starting to overflow into the main pond) ✅ Used the small pump to empty the pump bay of some of the dirty water... watering the blueberries and flowers in the process. ✅ tiny red bum friend? ✅ 🕷️ A successful day!! <a href="https://mstdn.chrisalemany.ca/tags/poolpond" class="mention hashtag" rel="nofollow noopener" target="_blank">#poolpond</a> <a href="https://mstdn.chrisalemany.ca/tags/backyardProject" class="mention hashtag" rel="nofollow noopener" target="_blank">#backyardProject</a> <a href="https://mstdn.chrisalemany.ca/tags/DIY" class="mention hashtag" rel="nofollow noopener" target="_blank">#DIY</a> <a href="https://mstdn.chrisalemany.ca/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronics</a>

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