Power Pine64 via GPIO
#1
Hi there,

Is it possible to power Pine64 via GPIO headers?
Best,
Dzmitry
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#2
Yes, it should be possible, the Euler pin set has DC IN and Battery + connections.

https://drive.google.com/file/d/0B0cEs0l...VrZHM/view
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#3
Awesome, thanks
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#4
They now have a POE adapter for the Pine 64 which doesn't help you but is a good thing to know.
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#5
(01-25-2016, 11:17 PM)Opine Wrote: Yes, it should be possible, the Euler pin set has DC IN and Battery + connections.

https://drive.google.com/file/d/0B0cEs0l...VrZHM/view

I notice that in the pin assignment on the third page they have system LED and reset sw. Does that mean it possible to use the GPI0 to power on the board instead of soldering the tactile switches on? If so, what are the advantages to one over the other?
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#6
From what I read from a Linux thread I know that u can power it Via those pins and the advantage is that u can power it with more amps

Try always to use the shortest cable from psu to the pine64



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By. Zoidiano0!
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Pine64 Head Unit Project.!
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#7
(03-14-2016, 10:16 PM)1q84 Wrote:
(01-25-2016, 11:17 PM)Opine Wrote: Yes, it should be possible, the Euler pin set has DC IN and Battery + connections.

https://drive.google.com/file/d/0B0cEs0l...VrZHM/view

I notice that in the pin assignment on the third page they have system LED and reset sw. Does that mean it possible to use the GPI0 to power on the board instead of soldering the tactile switches on? If so, what are the advantages to one over the other?

Yes, the signals duplicate here. There is no particular advantage to one over the others, just for convenient and also also some POT module able to directly power on or reset Pine A64 board if the design choose to do so.

(03-15-2016, 05:34 AM)Zoidiano0 Wrote: From what I read from a Linux thread I know that u can power it Via those pins and the advantage is that u can power it with more amps

Try always to use the shortest cable from psu to the pine64



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For power in point of view, thru Euler port power pin allows more amps. The original plan is allow POT module to supply power directly to Pine A64 board so that no need to supply power from micro USB port. One example like designing 20 watt class A amplifier on the POT board which require high power consumption where a high app power supply such as +12V 3A type is need, the POT schematic can drop +12V to +5V and supply to Pine A64 board.
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#8
What is the max Voltage in on the EULER bus? I have a 8v line in my case. Would that make the Pine run smoothly or fry it?
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#9
More like volts u need amps
Using a 5v 3.4 amps I thing I can be enough to make it work nice get a powergen charger or some similar that delivers that same or even more current cuz that is what makes the board work

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By. Zoidiano0!
Installed:
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Java 8 arm by oracle
Netbeans 8.1
chromium (uses way toooo much Ram)

Pine64 Head Unit Project.!
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#10
(04-01-2016, 09:32 PM)Zoidiano0 Wrote: More like volts u need amps

100% wrong. The power problems most Pine users suffer from are related to voltage drops below a certain treshold.

Before you start telling funny stories please use the test points on the board to measure voltages and a powermeter to monitor consumption. Unless you add a lot of power hungry peripherals you will have a hard time to get the Pine consuming more than 1.5A.

You can use really demaning workloads that make use of heavily optimised code and compiler switches and you will need ACTIVE COOLING to exceed 2A (BTDT: be aware that some of the conclusions in this post are still to be verified or wrong) and will then need to power the Pine64 through the Euler connector.

The problem with Micro USB used for DC-IN is that the tiny contacts prevent providing more than 1.8A (by specs!) and that most if not all USB cables Pine64 backers use are simply crap to power a board (resistance too high).

Finally: Power ratings written on a PSU are also pretty worthless since the problem are still voltage drops and most higher rated PSUs show identical behaviour: In case you really increase consumption and would need the amps the PSU is rated for, the voltage drops below a treshold and the board will power down. 

Everything well known since years (since the Raspberry Pi foundation unfortunately decided to use this crap Micro USB connector for DC-IN on the Raspberry Pi) and just here another example for the very same problem nearly all users are facing without knowing it since they believe in "more like volts u need amps" and similar nonsense:  https://www.loverpi.com/blogs/news/93532...comparison
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