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"lessons learned" (thelemmy.club)
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[-] halfapage@lemmy.world 34 points 1 day ago

this is a job for a freaking 555 but guy used entire data center instead

[-] MousePotatoDoesStuff@lemmy.world 26 points 22 hours ago

555? This is a job for a post-it note. "GET MILK"

[-] ChaoticNeutralCzech@feddit.org 12 points 21 hours ago* (last edited 20 hours ago)

I like how you two think, reducing the required transistor count from tens of billions (mostly DRAM bits) to 26 to zero.

(For the daytime question, personally I'd use a photocell to measure sunlight, one transistor to amplify the signal, another to switch based on a threshold, and a third as an oscillator driving a 3-pin piezzo buzzer at its natural frequency. No more semiconductors required. Nowadays, an LCD digital alarm clock from a dollar store is a potentially cheaper, silently running solution. It also shows time with an update every second that does not send 120k tokens back and forth, and uses so little energy that its single AAA alkaline battery will expire and corrode before fuly discharging.)

[-] halfapage@lemmy.world 3 points 16 hours ago

I like how you two think

and that is precisely why you are not a CEO

[-] ChaoticNeutralCzech@feddit.org 3 points 7 hours ago

I disagree, Milky Way's CEO Elon Musk would say his work is mostly cutting corners: finding what could be "unengineered", like any backup systems in spacecraft or LiDAR on Teslas. The pinnacle of removing corners is the most low-poly, best-selling car in the world that is so simple nothing ever fails in it. /s

[-] wonderingwanderer@sopuli.xyz 4 points 19 hours ago

Light pollution on an overcast night might give your photoreceptor a false positive

[-] ChaoticNeutralCzech@feddit.org 4 points 19 hours ago* (last edited 18 hours ago)

If the photocell is pointed east, weather does make a big difference. For other bearings, less so. And light pollution is more or less the same every night so it can be accounted for. Still, I suggested an LCD alarm clock as a decent compromise between accuracy, feature set, cost and transistor count. An analog one has fewer, closer to a 555, but will use more energy and produce a ticking sound (still less than the computers' fans). And then there's a windup one or a rooster...

[-] wonderingwanderer@sopuli.xyz 1 points 7 hours ago

If you've ever woken up to one of these bad boys on a fresh set of batteries, you know the feeling of true terror. Not sure if the windup ones are any gentler...

[-] ChaoticNeutralCzech@feddit.org 1 points 1 hour ago

I used a windup one for the lols. I could barely fall asleep and it would indeed ring very loudly, but only for 20 seconds or so. Of course, the clock spring is wound separately from the ringer spring.

[-] eleijeep@piefed.social 5 points 21 hours ago

“GET MILK AND A TRANSISTOR”

Now required transistor count is -1

this post was submitted on 04 Feb 2026
528 points (98.7% liked)

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