Especially simple for devices that won't be moving about a lot (like a plug charger) that compensate immediate inaccuracy over hours.
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Replying to @eduo @dimitribouniol
A tracking device that only works when someone leaves it plugged in several hours seems like it would have limited usefulness...
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Replying to @RichFelker @dimitribouniol
One of the safer assumptions on a USB charger is that it'll be connected for a while when used. Necessary since it'll be indoors anyway.
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Replying to @eduo @dimitribouniol
I don't think so. Lots of ppl just charge enough to use, & newish phones charge FAST (~30min for 15% to 90%).
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Replying to @RichFelker @dimitribouniol
Yet, as you know, the vast majority plug more than half and hour most of the time. Again, not sure what you're arguing here any more. Sorry.
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Replying to @eduo @dimitribouniol
I'm not either. I started off skeptical that they did anything at all, then curious about how cheap receivers are implemented...
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I'll believe you that they exist, but I'm still skeptical that the devices perform acceptably for what people would buy them for.
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Replying to @RichFelker @dimitribouniol
9 bucks. Buy one. Test it yourself. Report back.
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Replying to @eduo @dimitribouniol
I work with ones much more expensive than that.
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Replying to @RichFelker @dimitribouniol
So do I, but that's also irrelevant because these are the ones we're talking about and the ones you're skeptical about.
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And the ones I don't understand well.
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