#electronics

Wire & Gate @wireandgate@mastodon.social

I suppose a move calls for a new #introduction post: I'm a software developer and hobbyist #electronics nerd, usually making #blinkenlights - you can see a few in my profile cover photo. I also dabble in self-hosting and home-labbing, some services for fun and others as full replacements for cloud alternatives.

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· 1w ago

extralongdivision @extralongdivision@mstdn.party

Hello, Fediverse! #introduction Wire & Gate makes free puzzles to play in your browser, no account, no ads: 🧩 a new jigsaw every day: https://wireandgate.com/images (the pictures are AI-generated, then hand-picked) 💡 a logic-gate game: place the gates, light the lamp: https://wireandgate.com Made in France by an electronics student, with an AI assistant. This account posts the daily puzzle automatically; a human reads every reply. #jigsaw #puzzle #logicgates #electronics #browsergame

Free online jigsaw puzzles: the puzzle of the day — Wire & Gate

wireandgate.com

Free online jigsaw puzzles: the puzzle of the day — Wire & Gate

Beautiful pictures to rebuild in your browser, from 24 to 500 pieces, with a finger or a mouse. A free puzzle of the day you can share.

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· 1w ago

The odd bit @the_odd_bit@robot.villas

Just realized I never did an #introduction, I'm Extra Long Division, I'm a #maker of questionally useful things and haver of equally questionable opinions. I mostly interested in #opensource, especially #opensourcehardware. My contributions are usually on the #electricalengineering and #mechanicalengineering side of things. I guess you could say I'm an #electronics #contentcreator (🤢) too.

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· 91mo ago

A DIY CPAP Battery Box https://blog.oddbit.com/post/2019-05-14-a-diy-cpap-battery-box/ #DIY #Electronics #Hardware

blog.oddbit.com

A DIY CPAP Battery Box

A year or so ago I was diagnosed with sleep apnea, and since them I’ve been sleeping with a CPAP. This past weekend, I joined my daughter on a scout camping trip to a campground without readily accessible electricity. This would be the first time I found myself in this situation, and as the date approached, I realized I was going to have to build or buy some sort of battery solution for my CPAP. I opted for the “build” option because it seemed like a fun project.

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· 7mo ago

Okay so let's write this down to think it though. The latest smoke detector to howl pointlessly into the night sends out 11.3V DC onto the signal pin when triggered but running off batteries. I suspect that's 12V nominal, and it probably delivers 12V when operating on AC power. Most importantly, it's not like... 500mv. Or AC. Or complicated. It's simple DC. When acting as a non-reporting _satellite_ node, it triggers when _receiving_ 4V DC on the signal pin (4.0 exactly), and that voltage is polarity sensitive. -4V doesn't trigger the alarm. (1/n) #electronics #SmokeDetectors #why

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· 7mo ago

Replying to

Checking for DC on the signal line, I get functionally nothing. 20ma DC at most, and even that's something I'm picking up out of noise floor shift rather than direct measurement. My _thought_ was that if the signal line was somehow floating in whole number volts (for whatever reason) than maybe somehow the right RF noise could kick it over. The problem with _that_ is that I can now _also_ confirm that non-detecting units go off _exactly as long_ as a detecting device keeps saying it's detecting by putting voltage on the signal line. If that voltage goes away, so do the satellite alarms - and immediately. And that's not what happens. We have to manually intervene and shut the alarms off ourselves. (2/n) #electronics #SmokeDetectors #why

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· 7mo ago

Replying to

All _that_ does is get us right back to where we started, which is, "we have alarm after alarm after alarm of different makes, methods (ionisation, photodetector), and models which just in this house are determined to go off randomly, usually but not always at night, for absolutely no detectable fucking reason, and then pass self-test just fine afterwards." And no, regular cleaning - even weekly cleaning - does not help. I do _all the things_. None of it stops the problem. (4/?) #electronics #SmokeDetectors #why

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Static90 @static90@social.tchncs.de

· 7mo ago

Replying to

If you're new to this adventure, I have heard this exact same story from _many other people_ at this point - though nobody I've talked to has said they've literally taken metres to the signal wires to verify that way. Regardless, I know it is not just us. What I've been told from others who deal with this is to RMA individual units that trigger randomly one at a time until you end up with a set that doesn't. And I guess that's what I'm gonna do, but holy shit, team holy shit (5/6) #electronics #SmokeDetectors #why

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· 3w ago

DamonHD @DamonHD@mastodon.social

Hello, (Fedi-) World 👋 This is Static90, my new project about building hardware music gear, making ambient electronic music and hacking vintage audio tech. I love to experiment with cassette tapes and tape loops and turn them into something beautiful to listen to. I'd like to post about my music, projects, failures and learnings. If that sounds interesting, follow along! Feel free to say hi here, or check out my brand new blog: https://static90.com where you can also find my newsletter. #introduction #ambient #music #electronics #learning #hardware #repairing #modding #tech #tape #tapeloop #neuhier #synth #beyourownplatform

static90.com

Static90 — Blog

Notes from the workbench and the studio: Building hardware loopers, synths and effects, making ambient music, and hacking vintage audio gear.

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· 1mo ago

Replying to

@twoowls73@mastodon.scot A huge problem for me in the switch to #SMD #electronics beyond my shaky hands, was #floorLoss. And even if you do find your #passives, can you easily tell what they are, eg value?

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JacobMccoy @JacobMcCoy@mastodon.social

· 3w ago

Peter Bosch @peterbjornx@hsnl.social

Hello Fediverse! Here is my #Introduction: Setting up an account and finding my footing. By nature, I am a quiet observer and prefer reading, learning, and following thoughtful feeds over posting. Topics I enjoy following: • #Electronics & electrical tinkering • #Homelab & #SelfHosted infrastructure • #Music, guitar & composing #TTRPG scores • Hands-on building & maker craft Happy to read and learn from the community. Feed recommendations are welcome!

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· 3w ago

Boosted by @harblinger@wizard.casa

Fairchild 54H72 JK M/S Flip-flop First image is a stitch of 10x objective shots, Second image is a single 5x objective shot. #dieshot #electronics (This is an old post of mine from the old microblog site shared here for a broader audience)

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Kerem Caglar @kerem_caglar@mastodon.social

· 1mo ago