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Joined 1 year ago
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Cake day: June 12th, 2023

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  • Well it is literally not going as fast.

    The rate of “technology” (most people mean electronics) advancement was because there was a ton of really big innovations at in a small time: cheap PCBs, video games, internet, applicable fiber optics, wireless tech, bio-sensing, etc…

    Now, all of the breakthrough inventions in electronics have been done (except chemical sensing without needing refillable buffer or reactive materials), Moore’s law is completely non-relevant, and there are a ton of very very small incremental updates.

    Electronics advancements have largely stagnated. MCUs used 10 years ago are still viable today, which was absolutely not the case 10 years ago, as an example. Pretty much everything involving silicon is this way. Even quantum computing and supercooled computing advancements have slowed way down.

    The open source software and hardware space has made giant leaps in the past 5 years as people now are trying to get out from the thumb of corporate profits. Smart homes have come a very long way in the last 5 years, but that is very niche. Sodium ion batteries also got released which will have a massive, mostly invisible effect in the next decade.



  • Only partially true. The solar panels almost all inject power back into the grid. Power companies started complaining about their profits when they had to actually pay the users for their power that they generated so now home power generating houses get paid pennies on the dollar for delivering power and reducing the power capacity needed by the power companies and of course the power companies didn’t lower prices at all, so they are just sucking up the difference in pure profit.



  • Actually, the AI assistant fad isn’t all bad.

    HomeAssistant has an open souce assistant pipeline that integrates into the most flexible smart home software around. It is completely local and doesn’t rely on the cloud at all. Essentially it could make Alexa’s and google homes (that literally spy on you and send key phrases back to your built data collection profile) obsolete. That is a way not to have to rely on corporate bullshit privacy invasion to have a good smart home.

    Indeed transcribing and translating (and preserving dying languages and being able to re-teach them) are 2 of the best consumer uses for AI. Then there is accelerating disease and climate research.

    If these were the use cases that were pushed instead of fucking conversational assistants, replacements for customer support that only direct to existing incomplete docs, taking away artists’ jobs, and creating 1984 “you can’t trust your own eyes and ears” in real time, then AI would actually be very worthwhile.



  • Here in Belgium there used to be big government subsidies for solar panels 5-10 ago.

    Now the same wattage battery + solar setup without any government subsidies is a good chunk cheaper than that time with the large subsidies.

    Pretty cool and shows the power of government renewables subsidies. A huge percentage of houses in Belgium have solar panels now.(and electricity still costs 0.30€/kWh average because of fossil fuel energy lobbies)

    Now that there is a local industry around it, most renovations and almost all new builds include them.




  • You said it right there in your comment.

    Sleep mode, (and other effectively off modes) where it is functionally useless, it can do.

    MSP430 can do 140uA/MHz. That is ~7 times the power that this application supplies, and that is not counting any single other chip quiescent current or chip that actively provides useful data. You would have to have a battery anyway or a big cap to provide the needed current for on-states. Or you could run it extremely low frequencies like you said, but those tend to not scale linearly at all with per MHz power ratings. Quiescent currents tend to catch up fast at that scale. I would be extremely doubtful that 150kHz would scale perfectly and wouldn’t have already exponentially decayed to around its lowest possible on-state consumption for the chip. I would definitely have to see tests on that.

    The smallest of batteries like the VARTA tiny cells in TWS’s are infinitely more useful and practical and it would take this application months to fill a single cell, discounting all losses.


  • I don’t think people realize how extremely little 50uW is.

    For a standard 3.3V microcontroller assuming a 95% efficient voltage regulator will be a current of 14.4uA. Just having the HSI master clock enabled on one of the low power STML0 chips is 15uA. This will literally only the clock. That is 0 sensors, 0 communication, 0 IO, nothing useful at all. For reference, reading SPO2 with a very efficient maxm86161 takes 10uA by itself in ultra low power mode with low accuracy and not counting the max leakage current of 1uA. For full operation, you need about 1000x-10000x that amount for short bursts.

    “Oh but it can cHaRgE tHe BaTtErY”

    Let’s say the device has a standard 100mAh battery (apple watch had a 228mAh or more). At 100% efficiency with absolutely not one millijoule being used by any other electronics (which would never ever happen, it would at the very least need a boost converter), it would take around 277 days to charge up that tiny tiny battery.

    Let’s take another example of an even smaller battery. To charge one side of the airpods 3rd gen (0.133Wh battery), it would take 110 days per ear

    This is one of those free “energy harvesting” fad BS based in nothing but wishing and marketing. It is an interesting learning project for wireless antenna beginners, but that is the extent.


  • With electronics, that is only the tip of the iceburg before you get into trinocular microscopes which the absolute cheapest are almost 300€ nowadays 😉 then assembled PCB prototypes where every iteration can be 200-500€ depending on size. Or you could get into spending hundreds on hotplates and reflow ovens to do it yourself.

    But wouldn’t it be faster and cheaper in the long run to be able to fabricate the simple PCBs yourself? There goes 1000€ on a small CNC 😂 rabbit hole goes deeeeep.


  • Electronics projects mostly.

    Mostly smart home PCBs and interconnect boards and 3D modelled housings. Examples:

    • esp32-C3 dumb doorbell (just a doorbell that sends an MQTT message and sleeps the rest of the time). It works fatastic except that my Proximus ISP modem/router completely fucked up and so the network is no longer usable and I had to set it in bridge mode to a router it can’t reach. I want to release it, but haven’t had the time to water - resistance test it or make assembly instructions
    • esp32-S3 voice assistant satellite attached to an IR blaster, I2S mic, and PCM5102 to control and send audio to my old Yamaha RX-496RDS to control it via IR and can play audio (local or Spotify) via music assistant. Pretty much an Alexa echo attached to my speaker system. PCB link which I am planning on releasing.
    • My unfinished Flight Stick with custom electronics, fully custom 3D printable housing, etc… It is almost done, but needs like 2 more small iterations, but we moved and started doing a full-strip renovation, so my 3D printer is no longer set up because it is too dusty inside, and I don’t want to spend another $100 doing a PCB test iteration to use a better ADC with less components. Eventually as firmware practice, I want to rewrite the firmware in Rust or something. I also just looked at the Repo and the quick logo I drew up has been modified somehow without any commit. I know for a fact it was correct before. Very weird.

    I also have tons of new project ideas that I don’t have time for.

    My other hobbies

    • weightlifting, again completely dropped off due to every free moment renovating

    • Running a home server with replacement services for everything I need

    • Running (my motivation has been 0 recently…)

    • cooking. I try to do a few new recipes per month

    • gardening. With the renovation, I just grew a few courgettes, tomatoes, and squash this year

    • video games (more of a de-stresser nowadays than a hobby, most recently casual rocket league with friends is fun, hadn’t played since 2018 or so)





  • It’s interesting the difference in what people think a collapsed civilization will look like.

    Some people think we will “return to monke” where wilderness survival skills will be essential and people who have them will be the “main characters.” That would probably be the easier and better future.

    The more likely option will be technofeudalism where rich people have small, brutal armies and control localized power grids, farming operations, and politics with tech as mass migrations happen and wildlife becomes all but extinct outside of human cultivation. Survival skills won’t matter when all land and food scarcity is controlled by a rich few with absolute control. The average survivalist will be wiped out with the first natural disaster or by the feudal lords with drones. Return to nature might only come after 50 years when chip supplies and power grids have dried up and fallen apart, but it would just as likely be mad-max as oil could likely still be used.

    Who knows. Fascism might take over with how it is going now and solve the climate crisis with mass genocide and forcing green energy for all we know.