All Questions

9
votes
2answers
9k views

How can I build MongoDB?

It seems to me like there's currently two way to go about this: https://github.com/skrabban/mongo-nonx86 https://github.com/RickP/mongopi I settled for the mongo-nonx86 fork. I installed the ...
5
votes
4answers
8k views

Powered hubs, backfeeding and safety

I've got my RPi set up as a media centre, running Raspbmc, using a powered hub to run a bunch of peripherals including terabyte external HD and a hacked-together IR remote. All very nice, but it's ...
1
vote
2answers
5k views

How can I start rpcbind -i on startup?

I need have the rpcbind deamon running in 'insecure' mode all the time. What is the right way to do this using raspbian?
2
votes
3answers
188 views

Special OS for a special device

Why does the RPi need a 'special' kind of Linux ? Why can't it run any distribution ?
0
votes
1answer
359 views

Webcams without external power

With a resolution no higher than 640x480, what is the frame rate I should expect for streaming? Are there any cameras in the 10-50 dollar range that will get me 20-25 FPS, possibly with some manual ...
0
votes
1answer
4k views

Raspbian missing modules in lsmod output

when I type lsmod I get the output below. But I am missing all the other but the sound modules. Why are no other modules shown? I am using the latest Raspbian release (12/16/12) root@raspberrypi:~# ...
0
votes
1answer
3k views

Rasbmc Network Installer Hangs on Second Reboot

Ok so I have an early model Raspberry Pi (512 model), with an Edimax supported WiFi card installed in it. I used the automatic installer on the Raspbmc website to setup the SD card (and dongle), ...
1
vote
1answer
3k views

Simple C++ program compiles but does not run

Having installed the g++ compiler, I thought I might finally be allowed to do some C++ rather than Python on my Pi. Not so though, as my program does not run. It compiles fine, with no errors, and ...
1
vote
2answers
3k views

How can I use a PQ Labs multitouch overlay with the Pi?

I have multitouch screen overlays from PQ Labs that I would like to use with my Pi. They only have drivers for the x86 architecture. Is there any way I can use these? If not, are there other ...
2
votes
2answers
9k views

How to use OpenGL (ES) through Python

I recently got my Pi and thought to give OpenGL another try. So I searched around for OpenGL Python modules as this would be my first choice as language. Although I'm aware that there are differences ...
3
votes
4answers
8k views

Addition to cron is not executed

I am trying to implement a watchdog script which I basically got from here. Script works fine, starts up process if not running, does nothing if running. Now implementation into crontab gives me ...
7
votes
2answers
3k views

How to change the Pin used for the 1-wire Bus

By default the header Pin Nr. 7 us used by the 1-wire kernel module. I would like to change it to a one of the 4 new GPIO Pins of an Rev 2 Pi.
1
vote
1answer
2k views

I²C frequency changeable?

Is the I²C frequency meanwhile changeable? I read a few articles a while ago, that the frequency is not changeable.
1
vote
2answers
4k views

Pi stuck on wrong resolution

There are many posts here about people trying to set a custom resolution but they all have similar answers; Uncomment and set the following two values to your preference; hdmi_group=2 hdmi_mode=39 ...
16
votes
2answers
1k views

Safe to power a raspberry pi from a 50W adapter

I have a power adapter that is rated at 50W (5V, 10A output), and I was wondering if it would be safe to run a single pi from it? I am planning on using it for powering more in the future, but would ...
8
votes
1answer
27k views

Use Raspberry Pi as NAS and Media Center (OpenELEC, RaspBMC,..)

I want to use my raspberry pi as a NAS and media center. I have a Samsung smart TV and today I start my computer and watch films over DLNA. I want to attach the Raspberry Pi with a USB HDD to the ...
1
vote
1answer
3k views

Kernel Panic at boot: not syncing: attempted to kill init!

I have BerryBoot installed on my Pi, which works as expected. However when booting into my Raspbian image, the OS fails to initialize with the following output: Mounting image ...
3
votes
2answers
4k views

python audio bindings

I'm trying to get python audio input on my raspberry pi. So far I've installed the following: My inquiry looks similar to this one, but I'm not using an audio card, I just have a webcam plugged ...
4
votes
1answer
507 views

TeamSpeak in VOX mode on the Raspberry Pi

I would really like to run a TeamSpeak client in VOX mode on my Pi. My goal is to hook the Pi to a USB sound card and wire that to my two way portable radio that is VOX. Has anyone done this?
1
vote
1answer
3k views

MCP3008, Raspberry Pi and SPI

Hope someone can help me get started. As I realize MCP3008 200 k samples per second. This is what I want because the thing I want to measure only is a few hundred microseconds. But will the Raspberry ...
8
votes
3answers
60k views

How to install GNU C++ Development Tools on Raspberry Pi (using apt-get)

Is there a well-known package I should install for C++ Development Tools? What do I type at the command-line after sudo apt-get install? Ideally, I want the same tools that were installed with "...
2
votes
1answer
3k views

Partitioning SD Card For Multiple OS

is it possible to partition the SD card and install 2 different OS on it? Rather than installing another OS onto a seperate SD card. I was just wondering as I'd like to be able to have openelec + XBMC ...
2
votes
3answers
1k views

How can I share data between a network of Arduino and Raspberry Pi temperature monitoring stations?

I am planning on doing an internet connected temperature monitor (among other data) at multiple locations. At two of the locations I want to use a Raspberry Pi to display the information. The ...
10
votes
2answers
13k views

RPi as a Sound Level Meter?

For my daughter's science fair project (Computer Science and Math category), she'd like to use the RPi to go around and measure whether different loud sounds are above the threshold of pain and are ...
2
votes
1answer
5k views

Using old D-Link Wifi stick

My brand new raspi just arrived. I played around with raspbmc and did like it. Now I have an old D-Link DWL-122 Wifi stick flying around and I'd love to use it as the WIFI device. So, is it possible ...
1
vote
1answer
1k views

Raspbmc stuck on “updating service management”

I've tried three times now to install Raspbmc on my Pi using the Windows install script to format the SD card (an 8gb SDHC, no USB stick). The initial installation seems to go fine until after it ...
3
votes
1answer
2k views

USART resending Problem via console

I have some trouble with my USART interface. I short-circuited the RX and TX pins and tried to test sending stuff via the cli using these commands: sudo stty 200 -F /dev/ttyAMA0 cat /dev/ttyAMA0 ...
2
votes
1answer
255 views

transmission-daemon troubles

I set up transmission-daemon today and got the web UI working and stuff. When I went to download a small file, it gets about half way and says that I don't have permission to download it to my ...
2
votes
1answer
815 views

How to attach TFT screen to RasPi?

I purchased this 3.5" display from Adafruit (https://www.adafruit.com/products/913). However, I am a complete hardware noob. Am I suppose to solder the 2 wires not attached RCA connectors to the ...
1
vote
2answers
162 views

Is it possible to integrate RPi to a PC's GPIO? [closed]

What I mean to say I want to try something in the lines of sending a SMS to the RPi to activate my PC. i.e. turn on the PC or turn off. I understand there are of different architectures but is ...
0
votes
3answers
218 views

problem on sdcard

I got my raspberry pi kit today morning, with an SD card. My problem is I can't understand if the operating system is installed on the SD card. I don't have a power cable or display cable to test. ...
9
votes
1answer
7k views

Building a minimal Linux for Raspberry Pi

Now I got my Raspberry Pi. I am an experienced application software developer, but I've never done hardware stuff or low-level programming before. I want to build a minimal Linux, including drivers ...
32
votes
10answers
133k views

Raspberry Pi sleep mode, how to avoid

I use "wheezy" latest release. The device provides some web service features and supposes to be active 24/7. However if the server wasn't requested for certain amount of time (it is hard to tell exact ...
2
votes
1answer
2k views

5V TTL output from a Gertboard?

I have just got hold of an assembled Gertboard, and I'm thinking of various useful things I can do with it... I happen to work in a neuroscience lab where we use a lot of equipment that can be ...
1
vote
1answer
6k views

Mount External HDD using OpenElec

I have a pi with Openelec and I have an external HDD, powered. When I go into the file management section of settings I can't find my HDD. I am assuming that Openelec/XBMC is not auto mounting the ...
7
votes
1answer
2k views

Change output to HDMI after tv has turned off [duplicate]

Possible Duplicate: How do I force the Raspberry Pi to turn on HDMI? I have a Pi that is connected to my TV via hdmi. My pi acts primarily as a server, and its turned on all the time for this ...
4
votes
1answer
1k views

Power issues with 2 external hard drives connected

I'm using the B model pi which has two usb ports. I originally had 1 1TB external usb hard drive connected to it and then tried to add another 1TB drive and it seemed like that one would not power ...
0
votes
1answer
1k views

Putting Chameleon on an SD card

I am having trouble getting Raspberry Pi Chameleon for my Raspberry Pi. I'm not really sure how I am supposed to transfer the downloaded file to the SD card. How can I do it? BTW: I have a MacBook ...
2
votes
2answers
274 views

ssh Over internet weird login

When I log in on ssh to my Raspberry Pi in the same network, everything works perfectly. But when I log in over the internet I get a weird welcome message http://puu.sh/1UOUN and I cant type any ...
11
votes
2answers
29k views

Controlling many LEDs with few GPIO pins

I successfully completed my hardware "hello world" using this guide: http://www.raspberrypi-spy.co.uk/2012/06/control-led-using-gpio-output-pin/ Now I'd like to move on to bigger and brighter things,...
86
votes
8answers
88k views

How to uninstall X Server and Desktop Manager when running as headless server?

I'm using my Raspberry Pi as a headless server which I can ssh into. I don't need the X Server, LXDE etc. I'm running Raspbian "wheezy". I've already disabled "Start desktop on boot" using raspi-...
0
votes
4answers
5k views

What do I need to setup in order to push a video stream to the web

I'm interested in using a Raspberry Pi and some webcam to stream video to the web. First, I would need to know how to setup the webcam. Second I would like to know if it is possible to push a ...
39
votes
5answers
229k views

How to stream Netflix on Raspbmc

There are different blog posts and forum threads discussing this and the challenges encountered (Silverlight, DRM, etc.). Also read about the XBMC Flicks addon. But, did anyone succeed to stream ...
1
vote
2answers
2k views

XBMC settings sync on Raspbmc

How can I sync the settings of XBMC on my Raspbmc with the XBMC which I've installed on a computer or Android phone, on the same LAN?
3
votes
2answers
3k views

Cloning SD card to different size SD card

I was trying to clone one Raspberry PI Image and write it to a new SD card. Unfortunately after tests i have found that the orginal SD 4G card is actually 3.69G and the new 4G SD card is actually 3....
11
votes
10answers
33k views

Lost the start button on my pi?

I was messing around with my raspberry pi and i managed to delete my toolbar. I managed to get everything back but the start button. How do I get it back??
4
votes
1answer
1k views

Comparison of Python Gui performances

I am building a data visualization application. It is a multithreaded Gui without user interaction. I have 24 widgets that shall be updated any 100ms. 16 widgets are PyCairo rectangles and the other 8 ...
33
votes
8answers
17k views

How to shut down RPi when running headless

If I am running a Pi headless, is there a command I can use to safely shut down, or should I simply remove the power cord?
3
votes
1answer
7k views

sox & alsa sound recording issue

I've installed sox and now this whole thing is freaking out :) I'm trying to get sox to record a flac file for me. aplay and arecord work ok: pi@raspberrypi /tmp $ arecord -d 3 test1.wav Recording ...
2
votes
0answers
1k views

Raspberry Pi, Mercurial and nginx [closed]

I have a small problem with configuring Mercurial to work with nginx using unix sockets on raspberry pi. When accessing http://myip/hg via web browser, I get 502 Bad Gateway error and error.log ...

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