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System LED
utdrmac
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#11
04-25-2016, 01:32 PM
I think he's referring to this LED. Can it be accessed from CLI?

[Image: Pinepowerled.jpeg?dl=1]
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jproffer
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#12
05-04-2016, 07:29 PM
they're talking about this LED connector.


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utdrmac
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#13
05-04-2016, 08:08 PM
Ah. I didn't see that connector. Well heck! Now I want access to both! Big Grin
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martinayotte
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#14
05-04-2016, 08:17 PM (This post was last modified: 05-04-2016, 08:18 PM by martinayotte.)
Did you look at the schematic ?
The D12 seems to be hardwired to powerline ... Tongue
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JamesHarris
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#15
06-03-2016, 04:36 PM
Running the leny debian 8 image I measured the system led points to be a 600 millivolts. So it looks to be powered on.
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pfeerick
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#16
06-03-2016, 09:06 PM
(06-03-2016, 04:36 PM)JamesHarris Wrote: Running the leny debian 8 image I measured the system led points to be a 600 millivolts. So it looks to be powered on.

Hm... 0.6v shouldn't be enough to make a LED light... they usually want between 2.1 and 3.2 volts depending on the type of LED. I soldered leds onto mine, and the system led isn't lit up at the moment. I don't have a lithum battery on my pine64 atm, so there's no reason reason for the charge led to light (which it isn't).
pine64 wiki, linux-sunxi Pine64 wiki, the board/connector layout & pinout of the Raspberry Pi/Euler/EXP connectors
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Miguel Campos
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#17
07-01-2016, 07:43 AM
So. finally anyone has a clear idea of what the txo connectors marked as LED +- which are between the audio jack and the power button are for?
and also I would like to install the two leds which kind of leds should I buy?
Regards.
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xalius
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#18
07-01-2016, 10:46 AM (This post was last modified: 07-01-2016, 10:58 AM by xalius.)
The right (yellow one in this case) one is the charge led and is connected to the PMIC, the other is connected to a GPIO and you can do whatever you want with it. If you look at the schematic you will see that the resistors are set for a current of about 5mA...

   

echo 359 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio359/direction
echo 0 > /sys/class/gpio/gpio359/value

To turn the LED on for example.
Come have a chat in the Pine IRC channel >>
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MarkHaysHarris777
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#19
07-01-2016, 11:55 AM
Here is mine.

I will also point out that the sys LED pictured is 'reversed' logic... so, we're providing a ground shot to the LED-- when the value is 1 the LED is off, when the value is 0 the LED is on. 

The GPIO(s) can either source or sink... so they can be wired either way... this one is wired sink (ground shot turns on).

marcus
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MokaMx_GDL_DE
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#20
07-05-2016, 06:20 AM
I was wondering the same.. and Probably was to expensive to put them. cost saving 2 leds on each board is a bunch of money.. LOL... and one button for free instead of dealing with wave soldering problems is also charming!!..
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