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  Boinc - to help science
Posted by: boboviz - 03-14-2016, 10:39 AM - Forum: Pine A64 Projects, Ideas and Tutorials - Replies (29)

A lot of Boinc projects, now, support android on arm for their simulations (astronomy, physics, biology/medicine, etc).
I'm planning to buy a couple of P64, but i'm scared about temperatures.
No one is using fan?


  Free Online Courses/ MOOCs
Posted by: carlosviansi - 03-14-2016, 07:38 AM - Forum: Getting Started - Replies (1)

I can't remember if I listed this before, but here we go:

https://www.edx.org/course/embedded-syst...x-ut-6-03x#!

https://www.coursera.org/specializations/iot

https://www.edx.org/course/electronic-in...x-ee40lx-0#!

I actually went over the specialization lectures quickly and I found them really enlightening to reason about the Pine A64. Currently looking at the Austin one now. All of them have pay options for certificate, but you can watch them all for free.


Question Please add an ignore button to the forum
Posted by: sbhere - 03-13-2016, 10:10 PM - Forum: Pine A64 Projects, Ideas and Tutorials - Replies (1)

I've found a significant amount of useful information on the forum, thank you for providing an environment where this information can freely be exchanged.
Unfortunately, I've found one user to be particularly critical of other users, with personal criticism and off-topic remarks. Nothing this user has said has added to the information I've been searching for, and would therefore prefer to hide all of their postings. Is this a forum option? If so, please add it, or if it's available, please let me know where to find it.

Also, I looked for a place to put this post, but found no areas about "infrastructure" or "meta", aside from this "General" category. Apologies if it should be somewhere else.


  Camera Support Thru Android
Posted by: devildog125 - 03-13-2016, 02:49 PM - Forum: Android on Pine A64(+) - Replies (17)

I was wondering in the image update, if we could get usb camera support for android. This way when we connect a usb camera to the Pine, we can use the usb (since the camera module is semi short) camera natively in android as opposed to the camera module.


Exclamation HTTPS
Posted by: Ohheyalan - 03-13-2016, 01:06 PM - Forum: General Discussion on PINE A64(+) - Replies (2)

With Lets Encrypt giving out free TLS certificates, why is this forum not utilizing a secure connection?


  Cluster Software
Posted by: Madroxprime - 03-13-2016, 01:03 AM - Forum: Cluster Computing - Replies (1)

A PINE64A recently arrived, so I started getting it set up for a cluster using OpenMPI or MPICH,  maybe setting up a Hadoop cluster later.
  If you use Longsleep's Ubuntu image, you can install either of the MPI libraries(OpenMPI or MPICH) from the repositories if you're not keen on compiling them from source. They both seem to be the most recent versions, so that's neat.  You might need to edit sources.list to include the universe repositories.
  I'll post details as I get more into it. Right now I've only got the one Pine so I won't be able to get much information out besides what you need and how to get it.


  Using Pine64 as autopilot
Posted by: Artyom - 03-13-2016, 12:31 AM - Forum: Linux on Pine A64(+) - Replies (1)

Various proposals for Pine64 use as autopilot.


Recently contacted the company Emlid, which produces quite famous for Rpi2 Shield allows to turn it into the autopilot system. Came the reply from the company Emlid:

Hi Artyom,

Sorry, but we only support Raspberry Pi (since supporting new SBCs for Navio is a resource consuming task, but the demand in them is quite low), so cannot provide any help with other boards.


Best regards,
Mikhail Avkhimenia
Emlid Ltd.
www.emlid.com


  Visual Pinball?
Posted by: momaw27 - 03-12-2016, 08:16 PM - Forum: Pine A64 Projects, Ideas and Tutorials - Replies (2)

Hey all!

While anxiously waiting for my PINE64 to arrive my mind has been racing with all the cool things I might be able to do with it.

One thing I'd like to try to do is turn it into a virtual PINEball machine.

I was wondering if anyone knew if the PINE64 is capable of running Visual Pinball or Future Pinball?

Thanks!


  Accelerated H.264 and HEVC video decoding with Cedrus
Posted by: longsleep - 03-12-2016, 01:27 PM - Forum: Linux on Pine A64(+) - Replies (73)

Starting with Kernel 3.10.65-2-pine64-longsleep-43 the media modules are included. This means one could use the hardware video engine on the SoC. So i felt why not try it - and surprisingly it worked Smile.

Pine64 decodes 1080p H.264 and HEVC just fine and smooth with Cedrus from linux-sunxi community.

You can do it yourself following the Cedrus build instructions on http://linux-sunxi.org/Cedrus

HEVC bbb-1920x1080-cfg02.mkv

Code:
MPlayer 1.2.1 (Debian), built with gcc-5.3.1 (C) 2000-2016 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing bbb-1920x1080-cfg02.mkv.
libavformat version 56.40.101 (external)
libavformat file format detected.
[lavf] stream 0: video (hevc), -vid 0
[lavf] stream 1: audio (aac), -aid 0
VIDEO:  [HEVC]  1920x1080  0bpp  60.000 fps    0.0 kbps ( 0.0 kbyte/s)
Clip info:
encoder: libebml v1.3.0 + libmatroska v1.4.1
creation_time: 2014-04-22 08:46:13
Load subtitles in ./
[VDPAU SUNXI] VE version 0x1689 opened
[VDPAU SUNXI] OSD disabled!
==========================================================================
Forced video codec: ffmpeg12vdpau
Forced video codec: ffh264vdpau
Forced video codec: ffhevcvdpau
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 56.60.100 (external)
Selected video codec: [ffhevcvdpau] vfm: ffmpeg (FFmpeg HEVC / H.265 (VDPAU))
==========================================================================
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 6 ch, floatle, 0.0 kbit/0.00% (ratio: 0->1152000)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
AO: [pulse] Init failed: Connection refused
Failed to initialize audio driver 'pulse'
AO: [alsa] 48000Hz 2ch floatle (4 bytes per sample)
Starting playback...
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1920x1080 => 1920x1080 HEVC VDPAU acceleration
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1920x1080 => 1920x1080 HEVC VDPAU acceleration
A:   1.9 V:   0.8 A-V:  1.089 ct:  0.056   0/  0 86% 135%  7.5% 50 0


H.264 big_buck_bunny_1080p_H264_AAC_25fps_7200K.MP4
Code:
MPlayer 1.2.1 (Debian), built with gcc-5.3.1 (C) 2000-2016 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing big_buck_bunny_1080p_H264_AAC_25fps_7200K.MP4.
libavformat version 56.40.101 (external)
libavformat file format detected.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fb6fd8688]Protocol name not provided, cannot determine if input is local or a network protocol, buffers and access patterns cannot be configured optimally without knowing the protocol
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (aac), -aid 0, -alang und
VIDEO:  [H264]  1920x1080  24bpp  25.000 fps  7254.9 kbps (885.6 kbyte/s)
Clip info:
major_brand: mp42
minor_version: 1
compatible_brands: isommp423gp5
creation_time: 2011-08-04 01:51:12
title: big_buck_bunny_1080p_surround.avi_006.AVI.MP4
artist: created with SUPER(C).v2011.bld.49
encoder: eRightSoft
comment: 09:51:32
Load subtitles in ./
[VDPAU SUNXI] VE version 0x1689 opened
[VDPAU SUNXI] OSD disabled!
==========================================================================
Forced video codec: ffmpeg12vdpau
Forced video codec: ffh264vdpau
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 56.60.100 (external)
Selected video codec: [ffh264vdpau] vfm: ffmpeg (FFmpeg H.264 (VDPAU))
==========================================================================
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 2 ch, floatle, 96.1 kbit/3.40% (ratio: 12009->352800)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
AO: [pulse] Init failed: Connection refused
Failed to initialize audio driver 'pulse'
AO: [alsa] 44100Hz 2ch floatle (4 bytes per sample)
Starting playback...
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1920x1080 => 1920x1080 H.264 VDPAU acceleration
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 1920x1080 => 1920x1080 H.264 VDPAU acceleration
A:   7.5 V:   6.7 A-V:  0.776 ct:  0.071   0/  0 60% 42%  1.4% 50 0


Pine64 SoC temperature is stable at around 70C while decoding HEVC 1080p (without a heat sink, no enclosure).

For easy mplayer launches with the correct parameters feel free to use https://github.com/longsleep/build-pine6...er-play.sh


I will not support this overly much, but it confirms that the BSP Kernel has everything which is needed to use the media decoder in the Pine64.

Cheers
Simon


Wink Setting up your own Weather Station
Posted by: carlosviansi - 03-12-2016, 12:07 AM - Forum: Getting Started - Replies (3)

I haven't found yet any post about this, so I am setting one as I work through what I have. 

Disclaimer: I am a noob, don't get biased by my moderator status ;-) 

Alright so let's start by the goal: 

Goal. I need a weather station to be used on a Net-Zero building. They are getting popular in Hawaii, since electricity is expensive here. I just happen to be a hire in a group dealing with those stuff, so I see the potential to use my pine to play around with this.  Tongue I will basically dump my Pine in there and collect some data side-by-side with other sensors that already exist there. I imagine the IoT kit likely would benefit from this as well. 

If you browsed over the backerkit, you will see this:


[Image: CRbR9SD.png]

So, the Humidity/Temperature sensor and the Ambient Sensor call attention right off the bat. But is that all we need? Digging in the wiki, I found this template:

[Image: I2c_Cable_Connection.JPG]

Looking back at the Backetkit, you will notice the I2C POT is the "Pine64 12C Multiport POT. Further digging the wiki you will find how it is connected to the Pine64:

[Image: PMI2C01_I2C_Board_Rev1-3.jpg]

Awesome. Now we got the two main folks plugged in, the next is to worry about the sensors. Where do they go? Looking back at the template, we can see the 12C connector has a 4Way Connector and a 5 Way Connector. Again, referring to the wiki, if we stare close enough we will observe this is the number of pins for each sensor (the "white thing"):

[Image: PMSDO01_Dew_Point_Sensor_Rev1-1.jpg]
[Image: PMSAL01_Light_Sensor_Rev1-1.jpg]


4 and 5 respectively. Inspecting closer the 12C POT we will see it has both 4 and 5 here and there with the 5 names..

Ok great so we see the holes. Now what we are missing is how to plug them in.. and again checking the wiki we get a picture of the actual thing built up:

[Image: PMI2C01_I2C_Board_Rev1-2.jpg] 

Looking at the template again, we can see this is not really the arrangement being shown. Rather it seems closer to this one:

[Image: PMWF01A_Wifi_Remote_IO_Rev3-4.jpg]

Which is plugged to the Wi-Fi module instead....but seems inconsistent with the template naming. Either way, depending on which set-up we go this may influence if we want 4-way cables, 5-way, or 4-to-5 cables as shown on the template. Seeing this also made me wonder: For those who added the wi-fi and blue-tooth module at the $89 tier, can we just go with the second arrangement and avoid building the 12C POT? What else would we plug in there? 

Thats it for now. :-) Hopefully someone with more expertise feels like sharing their know-how here. To this point, the POT Development Board and Z-Wave remain a full mistery to me, other than the later is useful for OpenHub OS as it is part of the IoT kit.  I am also not sure if the USB Serial Programmer is just an extra USB port or if there is anything special to it. 

Again if you know anything about this, please consider starting a thread, or providing educational links or simple reply to this thread ;-)