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 Raspberry Pi, Rm100 computer that beats iPhone4S

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loonsave
post Sep 25 2012, 09:41 PM

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QUOTE(viruz019 @ Sep 25 2012, 08:28 PM)
Any idea where to get one of this?

and what OS is it capable of running? O.O
*
You can get from element14. But currently they are running out of stock.

http://my.element14.com/raspberry-pi/raspb...el-b/dp/2081185

There are few distro build base on the Pi, you can find it in the official website.

http://www.raspberrypi.org/

====================================================

I mentioned that the raspbmc unable to stream some mkv files from my server. And I hosted all my media files in another server, it work miraculously. Nice quality biggrin.gif
totally_skint
post Sep 25 2012, 09:47 PM

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Raspberry Pi - The Untold Story

raspberry-pi-insider-exclusive-sellout-to-sell-out
rublik
post Sep 26 2012, 07:03 AM

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Stil waiting for android to be released
nyem
post Sep 27 2012, 05:43 AM

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QUOTE(rublik @ Sep 26 2012, 07:03 AM)
Stil waiting for android to be released
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Memory size is one major hurdle to get android usable on the pi. Might as well get an android stick such as the UG802

Thinking of getting a touchscreen for my pi to be used as a carputer. Can we get any DVB-T channels here?
rublik
post Sep 27 2012, 07:15 AM

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QUOTE(nyem @ Sep 27 2012, 05:43 AM)
Memory size is one major hurdle to get android usable on the pi. Might as well get an android stick such as the UG802

Thinking of getting a touchscreen for my pi to be used as a carputer. Can we get any DVB-T channels here?
*
I also plan to use it in the car but as a obd2 reader

Hardware all ready but just waiting for software

Also bought a DC to DC converter for easy installation in the car

This post has been edited by rublik: Sep 27 2012, 07:17 AM
totally_skint
post Sep 27 2012, 09:44 PM

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QUOTE(nyem @ Sep 27 2012, 05:43 AM)
Thinking of getting a touchscreen for my pi to be used as a carputer. Can we get any DVB-T channels here?
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Wouldn't it be cheaper to just buy an cheap China Android tablet with capacitive screen instead?
nyem
post Sep 27 2012, 11:39 PM

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QUOTE(totally_skint @ Sep 27 2012, 09:44 PM)
Wouldn't it be cheaper to just buy an cheap China Android tablet with capacitive screen instead?
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yes that would be cheaper/easier, but then I don't have the flexibility of running whatever OS that I'd want to use. Can simply swap sd card and the pi can serve a different function.


Added on October 3, 2012, 8:00 amNew XBMC releases

- Raspbmc RC5 release http://www.raspbmc.com/
- Xbian 0.8 http://xbian.org/changelogs/

- OpenElec http://openelec.tv/news
grab openelec img from
- http://resources.pichimney.com/OpenELEC/ or
- http://openelec.thestateofme.com/



This post has been edited by nyem: Oct 3 2012, 08:00 AM
CocoMonGo
post Oct 7 2012, 08:19 AM

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Well guys last night I finally decided to overvolt my pi initially by using the preset turbo mode in the new kernal then overvolt to 8. I am now at 1.15GHz, 600mhz core & sdram clock. The reason I overvolt and overclock like mad was because the pi (running Xbian) had trouble keeping up with high bitrate movies smb streaming from my samba server - WiFi or cable. I deduced it was not my network problem since my laptops can stream all my movies without problem. With the new kernal and overvolt it now plays 95% of my movies without problem, except for some really high bit rate DTS 1080p movies.
willer
post Oct 8 2012, 03:40 PM

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QUOTE(CocoMonGo @ Oct 7 2012, 08:19 AM)
Well guys last night I finally decided to overvolt my pi initially by using the preset turbo mode in the new kernal then overvolt to 8. I am now at 1.15GHz, 600mhz core & sdram clock. The reason I overvolt and overclock like mad was because the pi (running Xbian) had trouble keeping up with high bitrate movies smb streaming from my samba server - WiFi or cable. I deduced it was not my network problem since my laptops can stream all my movies without problem. With the new kernal and overvolt it now plays 95% of my movies without problem, except for some really high bit rate DTS 1080p movies.
*
Standby with some heatsink smile.gif


Added on October 8, 2012, 3:41 pm
QUOTE(totally_skint @ Sep 27 2012, 09:44 PM)
Wouldn't it be cheaper to just buy an cheap China Android tablet with capacitive screen instead?
*
Agree

This post has been edited by willer: Oct 8 2012, 03:41 PM
CocoMonGo
post Oct 8 2012, 10:18 PM

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QUOTE(willer @ Oct 8 2012, 03:40 PM)
Standby with some heatsink smile.gif


Added on October 8, 2012, 3:41 pm

Agree
*
uncut south bridge heat sink muahahhaa

user posted image

anyway I figured out why the wifi performance is so slow. The wifi dongle is utilising the cpu's processing cycle to what I would presume "decode" the wifi? I dont know the proper term. I figured this out when another user who used the same dongle said his CPU utilisation was up 3-5% when plugged in. no wonder I have to OC so much. I am going to order another dongle. Hopefully the next 1 not so suck. The dongle you see that says "Equip" the the wifi dongle in question.
skywardsword
post Oct 8 2012, 11:13 PM

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QUOTE(CocoMonGo @ Oct 8 2012, 10:18 PM)
uncut south bridge heat sink muahahhaa

user posted image

anyway I figured out why the wifi performance is so slow. The wifi dongle is utilising the cpu's processing cycle to what I would presume "decode" the wifi? I dont know the proper term. I figured this out when another user who used the same dongle said his CPU utilisation was up 3-5% when plugged in. no wonder I have to OC so much. I am going to order another dongle. Hopefully the next 1 not so suck. The dongle you see that says "Equip" the the wifi dongle in question.
*
I have the same heat sinkX2. But I cut some other 1inch tall heat sink into chip size. (too lazy to glue it on with thermal compound, since my rasp-pi is still on 24X7 and I dont want to bring it down.)

I would put it on the next time I upgrade os to xbian.


I pre-wire the living room with an extra cat6 cable before I even order the raspberry pi so not using wifi. But I think it uses the same chip as the usb.... so the load is probably there.

Aside from that, due to snail pace internet, the most I have is 480p/720p.... just only rarely 1080p. Those do slow down... but not too concerned.


720p stream from samba share from pc... plays fine but some subtitle in say horriblesubs' naruto/hunter ect do skip one-two sentence. <so I do have to upgrade the os soon and hopefully overclock the pocket rocket)
CocoMonGo
post Oct 9 2012, 07:30 AM

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QUOTE(skywardsword @ Oct 8 2012, 11:13 PM)
I have the same heat sinkX2. But I cut some other 1inch tall heat sink into chip size. (too lazy to glue it on with thermal compound, since my rasp-pi is still on 24X7 and I dont want to bring it down.)

I would put it on the next time I upgrade os to xbian.
I pre-wire the living room with an extra cat6 cable before I even order the raspberry pi so not using wifi. But I think it uses the same chip as the usb.... so the load is probably there.

Aside from that, due to snail pace internet, the most I have is 480p/720p.... just only rarely 1080p. Those do slow down... but not too concerned.
720p stream from samba share from pc... plays fine but some subtitle in say horriblesubs' naruto/hunter ect do skip one-two sentence. <so I do have to upgrade the os soon and hopefully overclock the pocket rocket)
*
that was the surprising thing - I tested my pi to stream the same 720p movies using a CAT5 and CAT6 cable but the jerkiness of the movies persist. the only method to play 1080p or 720p movies flawlessly was to use a USB HDD which played flawlessly.

BTW i only use thermal compound, good enough it seems. Unless you drop the pi or shake it a lot like in the car, you should be able to live with just using paste vs something more permanent.

Oh yeah the new xbian/kernal from the foundation is awesome - especially since they sanctioned the turbo mode. I find it far more stable allowing higher OCs.
skywardsword
post Oct 9 2012, 10:54 AM

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QUOTE(CocoMonGo @ Oct 9 2012, 07:30 AM)
that was the surprising thing - I tested my pi to stream the same 720p movies using a CAT5 and CAT6 cable but the jerkiness of the movies persist. the only method to play 1080p or 720p movies flawlessly was to use a USB HDD which played flawlessly.

BTW i only use thermal compound, good enough it seems. Unless you drop the pi or shake it a lot like in the car, you should be able to live with just using paste vs something more permanent.

Oh yeah the new xbian/kernal from the foundation is awesome - especially since they sanctioned the turbo mode. I find it far more stable allowing higher OCs.
*
I mistype... I was going to use Arctic alumina, thermal adhesive.(the one with 2 tubes that gotta mix together one) once I put that one... I think no case will fit... since the heat sink is 1inch tall.


edit: downloading xbian 0.8 -- I read a note a xbian... dont turbo!!!! will get warranty voided. They made a mistake it seems.

This post has been edited by skywardsword: Oct 9 2012, 11:01 AM
willer
post Oct 9 2012, 01:15 PM

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QUOTE(CocoMonGo @ Oct 8 2012, 10:18 PM)
uncut south bridge heat sink muahahhaa

user posted image

anyway I figured out why the wifi performance is so slow. The wifi dongle is utilising the cpu's processing cycle to what I would presume "decode" the wifi? I dont know the proper term. I figured this out when another user who used the same dongle said his CPU utilisation was up 3-5% when plugged in. no wonder I have to OC so much. I am going to order another dongle. Hopefully the next 1 not so suck. The dongle you see that says "Equip" the the wifi dongle in question.
*
Nice cut, nice heat sink
CocoMonGo
post Oct 9 2012, 01:48 PM

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QUOTE(skywardsword @ Oct 9 2012, 10:54 AM)
I mistype... I was going to use Arctic alumina, thermal adhesive.(the one with 2 tubes that gotta mix together one) once I put that one... I think no case will fit... since the heat sink is 1inch tall.
edit: downloading xbian 0.8 -- I read a note a xbian... dont turbo!!!! will get warranty voided. They made a mistake it seems.
*
oh yeah i noticed it just make sure your "force_turbo=0" before reboot. Anyway it is a little too late for me. I noticed and fixed that the first time but forgot to do it the second time when I corrupted my first Xbian 8.1Beta install and had to reinstall.

personally i wouldnt worry about it. the initial idea the foundation did not support OC was due to concern of the heat generated which would cook the processor. but soon they realise even when OC'ed it would take many years before the board deteriorated hence the recent sanctioning of OC and OV in the pi. I dont have the articles which I read this about but you can google it up.


Added on October 9, 2012, 1:52 pm
QUOTE(willer @ Oct 9 2012, 01:15 PM)
Nice cut, nice heat sink
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thanks man. None of the heat sinks was cut though. I just took it out of an old Mother board and put in. fits nicely within the case too

This post has been edited by CocoMonGo: Oct 9 2012, 01:52 PM
stan001
post Oct 9 2012, 02:21 PM

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QUOTE(CocoMonGo @ Oct 8 2012, 10:18 PM)

anyway I figured out why the wifi performance is so slow. The wifi dongle is utilising the cpu's processing cycle to what I would presume "decode" the wifi? I dont know the proper term. I figured this out when another user who used the same dongle said his CPU utilisation was up 3-5% when plugged in. no wonder I have to OC so much. I am going to order another dongle. Hopefully the next 1 not so suck. The dongle you see that says "Equip" the the wifi dongle in question.
*
Nice discovery on the wifi USB dongle... do keep us updates on what dongle is suitable for the Pi..

I'm using Pi with the Arduino... is it so much cheaper to use the Pi instead of those Arduino Ethernet Shield or Wifi Shields...

CODE


I managed to hook up Arduino UNO to Raspberry Pi USB port and uploaded a hex file via linux command line...

This is very useful for upgrading the Arduino hex remotely via ssh/telnet...

[62207.804907] usb 1-1.3: Product: Arduino Uno
[62207.804918] usb 1-1.3: Manufacturer: Arduino (www.arduino.cc)
[62207.804929] usb 1-1.3: SerialNumber: XXXXXXXXX
[62208.004766] cdc_acm 1-1.3:1.0: ttyACM0: USB ACM device
[62208.008799] usbcore: registered new interface driver cdc_acm
[62208.008838] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

$ avrdude -C /usr/share/arduino/hardware/tools/avrdude.conf -v -v -v -v -patmega328p -carduino -P/dev/ttyS0 -b115200 -D -Uflash:w:blink.cpp.hex:i

Using Port : /dev/ttyS0
Using Programmer : arduino
Overriding Baud Rate : 115200
AVR Part : ATMEGA328P

[snip]

avrdude done. Thank you.


skywardsword
post Oct 9 2012, 04:11 PM

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aiya... my stupid arctic allumina tube dried up....so cannot attach heatsink.


what oc should I try without the heatsink?


Just did 0.81xbian, not sure if overclocked or not. but 1080p of final fantasy work like charm. very slight skip after 2minutes in. (incredible performance compared to my 8yr old laptop... haha)


I briefly touch my chip. it is very hot to the touch... but not so hot that I cannot hold my finger on it.



for Xbian 0.81. should I be running

sudo apt-get update
sudo apt-get upgrade
wget wget http://goo.gl/1BOfJ -O /usr/bin/rpi-update && chmod +x /usr/bin/rpi-update
rpi-update (updating firmware of rpi)


or just run

rpi-update 128


edit: I am having difficulties trying to log into PSFTP, after installing xbian 0.81beta

I get the error after keying password

bash: /usr/lib/sftp-server: No such file or directory
Fatal" unable to initialise SFTP: could not connect.


I can SSH in no problem. I can see the dropbear process running.
apparently xbian dont have sftp running. wai... now I cant get my files copied off the pi... sigh still trying to figure it out.

Edit2: ok so gotta do this

sudo apt-get install openssh-server


After trying out xbian.. I think i will switch back to raspbmc. Too many things not running in xbian... even the transmission is getting out of wack. the download speed limit not working... sigh...



This post has been edited by skywardsword: Oct 9 2012, 11:35 PM
totally_skint
post Oct 9 2012, 11:40 PM

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Seems everybody is using their RaspPi as a media player why not try the Hackberry instead?
Supports Android 4 out of the box and boots other OS off the SD card.
And it's 1.2GHz!
hackberry-a10-now-shipping-for-65-android-linux-dev-board.html
skywardsword
post Oct 10 2012, 12:08 AM

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QUOTE(totally_skint @ Oct 9 2012, 11:40 PM)
Seems everybody is using their RaspPi as a media player why not try the Hackberry instead?
Supports Android 4 out of the box and boots other OS off the SD card.
And it's 1.2GHz!
hackberry-a10-now-shipping-for-65-android-linux-dev-board.html
*
It seems like not just xbian user is having problems. even raspbmc latest rc5 is like ... problem.
ruffstuff
post Oct 10 2012, 03:29 PM

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element14 and rs-online still no stock. sad.gif

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