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Forum Index : Microcontroller and PC projects : AI Research Project Ongoing
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
I had to laugh. Turns out I'm a global financial genius. The only drawback (for me) is that China and 75 million sub-Sahara "subsistence-plus" farmers are the beneficiaries. I've had a fun 2-day interaction with Gemini starting with the prompt, Greatly summarizing, Gemini argued repeatedly that tipping-point related famine was the more dire threat, citing Iraq, Egypt, and Algeria, and much of sub-Sahara Africa as being particularly at risk. I asked for expansion regarding oil-rich Iraq. It cited 2 million farmers with 2-6 acres (.8 to 2.4 hectares) running out of water and bankrupted if forced to purchase diesel to pump. We whittled down to a $2,000 USD solar system able to provide pumping, farm, and household power for that small a farm--with a 4-year payback period--so $4 billion in loans (which Iraq could theoretically fund from its own ~$140 billion annual budget). With this solar these farms would not only become self-sustaining, they would have an estimated additional $1,440 net income and their crops would provide the means for Iraq to avert famine. Gemini went on to say that at present, U.S. funding is out of the question, and while European citizens have bought around 340GW of Chinese solar panels in the past 5 years, EU and Western institutions (World Bank, etc.) have coalesced around a policy of not supporting China's continuing domination of solar production. That leaves China, and its "top-down" practice of funding (and thereby gaining a degree of control through indebtedness) is contrary to the "bottom-up" funding of supplying loans for solar panels to 75 million small farmers. tl;dr after much more back and forth, including savings from foregone diesel purchases for pumping: And here, the response, illustrating the much-remarked-upon tendency of LLMs to praise their queriers. ~ Edited 2025-11-10 10:46 by lizby PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| Gizmo Admin Group Joined: 05/06/2004 Location: AustraliaPosts: 5166 |
One thing I've discovered with ChatGPT is use useless with calculations. Throw it a history question, ask it to summarise any well researched and discussed subject, write a poem, etc, brilliant! But ask it to forecast, use models, do maths, hopeless. I remember using it to research making a HV capacitor for my tig welder, what dielectrics I could use, like polycarb, PVC, thickness, etc. It had no problems getting the basic dielectric figures from research, but when it came to designing my capacitor, it was so far off the mark it was funny. Recently with my Linux journey, I've found it nearly always gives a inaccurate answer, often quoting the more difficult solution before the easy solution. But ask it a php/java/html/mysql question, its fantastic. Why the difference? Forums and documentation. Linux changes, there's dozens of solutions to peoples questions on forums, but most of those solutions are out of date and dont work. Code, however, doesn't change. A SQL query from 20 years ago will still work just fine when writing SQL queries today. I use ChatGPT daily, but understand its hopeless at some things, brilliant at others, depending on how reliable the source material is. I wouldn't ask it economic questions, where should I invest, industry growth, future trends. I would and do ask it about code, the drugs I'm prescribed, rewording my website, summarise a historic event, etc. Glenn The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
I agree with regard to code. I recently had a problem with a Linux openWrt system where the cron runs were an hour out of sync with the return from the "date" command--a daylight savings time issue. ChatGPT-5 offered a one-line solution that worked. Maybe I could have found that with an alternative search, but in the past I've had a lot of frustration trying to find fixes to little glitches. I think openWrt is pretty obscure among Linux distros (targeted at tiny devices), so I was surprised at its understanding (though some might question that use of "understanding"). I frequently ask ChatGPT-5 to write me a little python program to do some graphing or data shuffling. I don't know python. I don't even look at the code, I just run it and look at the output. Maybe I want to tweak it a bit--no problem, just ask again. I would never ask it for investment advice (but maybe that's because I'm settled in the program I have and rarely make even one trade a year). I have a friend who's a lawyer. With new cases, he says that while everything needs to be checked, it's incredibly useful to have it summarize several hundred pages of documents--work which would have taken him and a legal aid weeks. (This is with a legal-specific LLM.) For this particular exercise above, no doubt the devil is in the details, and a lot of infrastructure needs are glossed over (partly in my summarizing), but it seems that this program would do three important things: continue the bringing up from extreme poverty of much of the mostly now sub-Saharan population in that category; avert the greatest part of the risk of climate-derived famine by making 75 million tiny farms significantly more productive; and (totally unintended on my part), provide a use for a substantial part of China's solar panel production overcapacity. Is it incidental that this brings clean tech to people who use charcoal for cooking and diesel generators for electricity (even if their overall carbon contribution is miniscule compared to that of us in wealthy countries)? PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
A follow-up. A link to this article appeared today in my substack feed: African "Solarpunk" I asked Gemini to assess the article in the context of the subsistence-plus solar program we had discussed: From the article: Interesting to see that my playing around with AI produces a plan which has real-world analogs. ~ Edited 2025-11-12 09:59 by lizby PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
In preparation for (next year), trying to get my boiler, well pump, and freezer to run from solar panels, I had Gemini produce plots of daily runtimes. ![]() Ok, total daily usage under a kilowatt (no real heating done with the boiler), so that's handle-able. Maximum inrush with the well pump just over a kilowatt, so that's ok. Inrush current for boiler and freezer only caught occasionally--around 700 watts for the boiler and 400 for the freezer. It might well be that they would never all three be drawing their maximum during the same few milliseconds, but most inverters will handle double their nominal rating for short periods, so that should be ok. I think a 1500W or 2kW continuous should be adequate. Here's the cumulative daily usage. ![]() PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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Revlac![]() Guru Joined: 31/12/2016 Location: AustraliaPosts: 1214 |
I'm looking at the freezer inrush and to me that looks a little low and not captured sometimes, what device was used to capture inrush current? I have several fridge's and freezers the older freezer runs at 100w but start surge on it and others will almost kill a 2kw generator, your inverter power requirement sounds about right if every thing is true and nothing is changed or upgraded. And yes there is a time when all these loads can start at the same time (done it) if the power to the house has been off for some time 30 minuets on an hour and the power comes back on or reconnected using the inverter most if not everything starts at the same time. You could go for 4Kw inverter to cover that and have a lot of head room spare, also check Inverter idle consumption. ![]() Cheers Aaron Off The Grid |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
I think you're right there about a 4kW inverter. Whether or not the inrush current is caught is entirely circumstantial--every three seconds I poll the Tasmotized Sonoff POW R3 16 Power Meter to retrieve instantaneous current. The spikes for the freezer at about 5pm and 8pm are catching at least part of that inrush current. Most of the time, it isn't caught. I will have to check idle current. I may need to put a "slow start" intermediary on the well pump. Personally, for a couple of dollars worth of hardware, I think every major appliance should have slow start built in--pumps, fridges, freezers, ovens, microwaves, electric kettles, table saws, band saws, etc. PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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Revlac![]() Guru Joined: 31/12/2016 Location: AustraliaPosts: 1214 |
Inverter should use less than 50w, and beware that some soft start don't play nicely with some inverters, The one built into the vacuum cleaner, the Last DIY inverter don't like it (I can fix that Though) , the other vacuum cleaner has a soft start and its great, most appliance's should be fine with out a soft start when using a solid powerful inverter.Edited 2025-11-16 10:45 by Revlac Cheers Aaron Off The Grid |
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| phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2900 |
Many fridges and freezers don't like soft start. They just sit there drawing maximum current till the thermal overload cuts out. They need a proper kick in the guts to turn over. There are special soft starters for aircon. and pumps, but they are almost as expensive as a Chinese VFD. A VFD is the proper way to soft start an induction motor. |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 8402 |
A VFD isn't a soft starter and vice versa, although some devices incorporate elements of both. A VFD is primarily for speed control whereas a soft starter is more like a star-delta starter but gentler - it will supply the full inrush current at the start of the run, with little restriction if necessary. A difficult load may fail to start on some VFDs. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
Retrofitting a "soft start" for refrigerators and freezers may not always work, but per Gemini: "Mid-to-High-End Models: Almost all premium refrigerators (especially from brands like Samsung, LG, and Bosch) now use inverter compressors as their main selling point. They advertise them as "Digital Inverter" or "Smart Inverter." These units already have a soft start, plus they are quieter, more energy-efficient, and maintain a more stable temperature." But my refrigerator is 25 years old, and the freezer nearly that. PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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Revlac![]() Guru Joined: 31/12/2016 Location: AustraliaPosts: 1214 |
The Older fridge and freezer are best left as they are, and use them till they Die just be sure your inverter can start them. ![]() Cheers Aaron Off The Grid |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 8402 |
It's long since been a problem, starting motors on generators and inverters. Even a fairly moderate inrush can become a problem when the load is inductive, leading to a poor power factor. The generator and inverter ratings are usually rated for a unity power factor resistive load, that's how they are tested on a load bank. Their output into inductive loads, especially those with any appreciable inrush, can be a lot less than the label says. Sometimes the answer is to stagger the starting of any motors then apply the resistive load. That way you stand the best chance of getting all the load on. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
My first stab at Gemini 3 "Thinking": PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
(Follow-up to above post) ~ Edited 2025-11-19 23:05 by lizby PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| twofingers Guru Joined: 02/06/2014 Location: GermanyPosts: 1713 |
Hi Lance, thanks for your consistently interesting posts, although I find the bit about the cheap batteries hard to believe. At least not in the EU. Something I always notice: that the power output of new AI data centers (campus capacity) is measured in gigawatts. Strange. Kind regards Michael causality ≠ correlation ≠ coincidence |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
Yes, the battery price of $60/kWh USD retail is aspirational. But CATL has announced that its target manufacturing cost of its new sodium Natrium batteries supposed to go into production next month is $19/kWh (in time). I have been able to buy from Amazon 12V 100Ah LiFePO4 batteries for $100USD. They had gotten a bad review, but I bought one and for me it tested at over 95% of nameplate capacity at a C/20 discharge rate. (So I bought 3 more, gave it a good review, and the price went up to comparable to others.) That price was 1/3rd what I paid 3 years earlier. The more integrated batteries (48V, 100Ah and higher) still have per kWh prices nearly double that--but I think the price curve is still headed steeply down (if tariffs don't get in the way). Gemini says: PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| twofingers Guru Joined: 02/06/2014 Location: GermanyPosts: 1713 |
Hi Lance, I find the development of solar battery prices very promising. Unfortunately, 1000 Ah batteries still cost around €200 in Germany. If the price drops to €100, I'll buy some. By the way, some of my chat topics: - Interpreting blood test results. - Interpreting medical reports. - Creating a PDF calendar for 2026 (landscape A4, 3 copies) as a Python script. Chatgpt also wrote the README without any help. Regards Michael causality ≠ correlation ≠ coincidence |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3523 |
Interesting. I'm looking forward to trying Gemini3 with a particularly time-consuming aspect of doing my taxes. I have to file in the U.S. and Canada. That's not too hard but there is an informational filing required by Canada (not actually part of tax calculation, but an reporting requirement). It typically takes me about a day and a half, even though I have automated some parts of it (VBA scripts). I may be able to feed my 2024 spreadsheet and the data from the 2025 1099 documents into it. The good thing about it is that it must come up with some summary numbers which are not part of anything I have fed it, but which I have independently calculated in filing the taxes. If that works, it could save me a good bit of hair-pulling. I can do this without providing it any identifying numbers (though of course, it knows who I am). PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| twofingers Guru Joined: 02/06/2014 Location: GermanyPosts: 1713 |
Peter wrote here about how he invented a new function for the MMBasic editor. I asked ChatGPT to explain the techniques behind it. causality ≠ correlation ≠ coincidence |
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