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>> No.1794819 [View]
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1794819

I'm trying to figure out how to make a little Bluetooth controller, for a cheap vr headset, be powered by USB cable instead of two AAA's.
The obvious issue, to me, is the voltage(I'm not sure how much output a phone would have to power something through USB): 5v would be far too much for a 3v accessory.
More obviously would be the wiring itself: it can't be so simple to just solder the positives and negatives to the batter terminals, since there's two sets, and I don't know if just bridging the terminals in series would remedy that issue.
Any knowledge will be helpful.



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