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I'd love to make that as well or find a source for it. Curious as to costs to manufacture and ease of reproducibility. Any tips / pointers / guides?
Can’t find the tutorial I used but here is one https://reddit.com/r/electronics/comments/efz9xf/my_nfc_powe...
This will be worth billions of dollars in a post war apocalypse when electricity no longer exists.
If electricity no longer exists, any electronic device will cease to function including this one. If you mean power grid is all down, the biggest winner would be those crank style devices or generator installers.
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Because that's not all it is. They didn't just take a console and slap a solar panel on top and wired that into the battery compartment. They took a new CPU, buttons, etc. and run an inefficient emulator (goes to show how big the energy budget is) with auto save state before turning off from lack of light/button energy. Arguably, the former is way more useful in the short run, as you could actually use it for more th…
it pretty much is, they removed battery and replaced it with direct power supply from solar panels, they mention some additional energy from buttons but I really doubt that would have any meaningful gains, after all how can you generate energy and store it between keypresses unless you will be constantly pressing button in which case you need third hand
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Can’t find the tutorial I used but here is one https://reddit.com/r/electronics/comments/efz9xf/my_nfc_powe...
I found this one: https://www.instructables.com/PCB-Business-Card-With-NFC/ Looks closer to yours? Not sure how you did the 24k gold part tho ;)
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I found this one: https://www.instructables.com/PCB-Business-Card-With-NFC/ Looks closer to yours? Not sure how you did the 24k gold part tho ;)
Yes, that’s the one I used afaik. The gold is one of the materials you can choose to plate your copper on the board at manufacturing. “Enig”. Increases conductivity but also looks sexy :D I think every board was $8 on MOQ.
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Neither lists a price, and it seems the former has a minimum quantity of "5,000" which I take to mean 5'000 but might be localised to mean 5, you never know
The Mouser website says 5000, not 5, unfortunately. Do you know if there is a retailer that sells them in smaller quantities (like <100)?
Around fifteen bucks each.
Is that really how GDPR works (I'm in Europe)?
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But the idea of a research project is to find out what is worth doing and what isn't. Do shitty, hard to press buttons actually help? Or would putting just a tiny bit larger solar cells help a lot more. If you're in complete darkness, can you actually press enough buttons to make it playable there too? There have been many, many really shitty solar projects in the last year, some wasting millions of dollars and euros…
So the questions in your first paragraph are mostly answered by the paper. And your second paragraph feels a bit like an unfair comparison to me. This is a first attempt at seeing if this concept is even remotely feasible, and it uses off-the-shelf parts for that. It's not a company with a lot of money and resources invested in it that produces mediocre final products where the embodied energy of the solar panels is…
I have to wonder just how much power they get out of those button presses. It seems like it must be such a tiny amount that it's hardly worth the effort.
This reminds me of the OLPC crank. (It did have crank for power, right? Or do I misremember?)