PINE64

Full Version: Pinebook micro USB power input mod
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Decided to add a micro usb port for charging.


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EDIT: Not sure how to have the attachments display inline, not as links.

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Wow. Kudos on your skills. Is there an instruction manual, how to do this? That would be awesome.

I would like to ask also another question. Not about your project, but a related question.

On page http://linux-sunxi.org/Pine_Pinebook#Pin...6.22_1080p
there is an statement in Power Managment paragraph: "There is a secondary power path via the OTG-USB port...".

Does that mean, the pinebook can be charged via the OTG-USB port? If yes, which one is it?

Thanks.
Thanks!

No instruction manual. Can provide if other members are interested as well.

I've made similar modifications to other devices before. Just went by my own experience.

Scoped out a good spot inside the pinebook with an unused threaded insert.

Cut out the necessary hole and edges from the plastic shell/panel to expose/accommodate the micro USB.

Probed the board for the 5V and GND connections to the barrel jack.

Soldered wires connecting the barrel jack connections to the micro USB breakout.

I didn't use a diode but it would help to prevent reverse voltage when both the barrel jack and micro USB are powered by different sources.

As for the OTG-USB. I found four closely situated pads near the WiFi chip on the motherboard but I'm not sure if those are the OTG-USB ones. I did not use the OTG-USB connections for this mod. If they are readily accessible, it may be the better option as opposed to connecting to the barrel jack.
As far as first posts go, this certainly takes the prize. Also, pretty sweet mod - this is exactly the sort of tinkering that was envisioned for the Pinebook in the first place.

[edit] for the pictures, in the future, I recommend just using imgur embed.
Luckily the current generation Pinebook has a plastic enclosure. Sounds like the magnesium chassis of the Pinebook Pro might not lend to these kinds of mods as readily but still looking forward to it!