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+--- Thread: Pinebook micro USB power input mod (/showthread.php?tid=7510)
Pinebook micro USB power input mod - phuzy - 05-18-2019
Decided to add a micro usb port for charging.
EDIT: Not sure how to have the attachments display inline, not as links.
EDIT 2: Used attachment as inline images.
RE: Pinebook micro USB power input mod - jezek - 05-19-2019
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#Pinebook_11.6.22_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.
RE: Pinebook micro USB power input mod - phuzy - 05-20-2019
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.
RE: Pinebook micro USB power input mod - Luke - 05-20-2019
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.
RE: Pinebook micro USB power input mod - phuzy - 05-20-2019
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!