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2
votes
2answers
1k views

Is Raspberry Pi powerful enough for a VDR with a USB HDD and USB DVB-C stick?

I'm planning to do a personal video recorder using Raspberry Pi that can take potential HDTV movies receiced from a USB DVB-C stick and record it to a USB hard disk drive. The PI should run an SSH ...
2
votes
3answers
12k views

Black screen with X cursor when running VNC on boot

I followed the instructions in the Adafruit tutorial for setting up vnc for my RPi (http://learn.adafruit.com/adafruit-raspberry-pi-lesson-7-remote-control-with-vnc). VNC works great when launching ...
7
votes
2answers
10k views

How to use JFFS2 or UBIFS to avoid data corruption and increase life of the SD card?

The Pi is using a EXT4 or EXT3 or FAT file systems which are not meant for low level flash devices. It might work very well on flash devices that uses internal (and hidden) wear leveling techniques (...
1
vote
2answers
1k views

Communicating between two Raspberry Pi

I would like to know what way can two Raspberry Pi communicate in? Here's the case, I am going do an autonomous robot called Micromouse with Raspberry. And I want them to run in one 16x16 maze in the ...
1
vote
3answers
3k views

Raspberry Pi kernel configuration for USB mouse and keyboard

I've been trying cross compile kernel using this guide. http://elinux.org/Rpi_kernel_compilation#2._Cross_compiling_from_Linux. However, all my kernel doesn't support USB mouse and keyboard. In the ...
2
votes
2answers
8k views

Software for running virtual hosts on the Raspberry Pi

Is there any software around that allows me to run multiple virtual hosts in one raspberry pi? Edit: The sentence above is what I want to get answered. Please do not make assumptions of what I want ...
1
vote
2answers
586 views

Stop raspberry pi from turning on when plugged in

I am planning to use raspberry pi in an embedded design. Is there any way i can prevent the pi from automatically turning on when plugged in?
3
votes
1answer
296 views

Wi-Fi robot with Raspberry Pi

I am planning to make a Wi-Fi controlled robot with 4 motors (for driving) and 6 servos. The robot will also be have around 4 sensors. Simultaneously, the robot will be streaming live video to a ...
2
votes
2answers
2k views

Power Management System for Raspberry Pi

I am working on a concept idea at the moment that I would like to take forward later in the form of wearable computers. At the moment, I am using a Raspberry Pi as the computer itself. It presently ...
10
votes
4answers
10k views

12V device to a Raspberry Pi

For my school engineering project, I have a coin acceptor device which I would like to link to the Raspberry Pi. However the device requires 12V in power. I have an idea of what to do to power the ...
4
votes
1answer
4k views

GitLab on Raspberry Pi

I got on wednesday my new Raspberry Pi Model B and I tried to install GitLab with the wikis. GitLab - Installation from source Debian Squeeze complete Installation 'script' with RVM The installation ...
1
vote
5answers
6k views

Power requirements when overclocking a Pi to Turbo mode

Whenever I enable Turbo mode on my Pi and restart it, it fails to boot. I am currently using a normal 5.0V smartphone charger to power my Raspberry. I am assuming that it is not powerful enough... ...
9
votes
3answers
40k views

Can you make a high-power NAS from a Raspberry Pi?

I am completely new to Raspberry Pi, and don't know a lot about it. My knowledge on hardware, software and programming (except for basic Python) is also very limited. However, I read you can make a ...
3
votes
1answer
4k views

Installing OpenCV on Raspberry Pi: can't find packages

I'm trying to install OpenCV 2.4.7 on Raspberry Pi (Model B, OS: Raspbian). The guides I'm referring to are: 1. RASPBERRY PI + SIMPLECV + OPENCV + RASPICAM CSI CAMERA 2. Raspberry Pi + OpenCV 3. ... ...
1
vote
3answers
9k views

Setting up Raspbian and WiFi on a private network

I just got raspbian installed on my SD card and am trying to get my Pi on my network. It's protected with WPA2 Personal. I opened up the gui network connect and added a new network with the proper ...
2
votes
3answers
8k views

set system clock to value received from GPS

I've got a USB GPS receiver permanently attached to my raspberry pi. At boot time, I would like raspbian to wait until the GPS has a signal, then set the OS's time to whatever the GPS says. I've ...
2
votes
1answer
2k views

Toggle a LED on and off using wiringPi in C

I am trying to Toggle a led on and off using using a switch connected to a GPIO(pin11). The LED would be connected to another GPIO(pin12). I used wiringPi's blink program to blink an LED, but i am ...
1
vote
0answers
376 views

Using wireless and wired NIC on Pi simultaneously with raspbmc

I have a setup where I have my pi getting internet from my router on a wifi dongle, and then a blu ray player is connected to the pi's ethernet. The pi should be able to forward packets through from ...
0
votes
2answers
185 views

pc>ssh>pi problem

i have some problems connecting to my pi from my pc. i am using a ethernet cable to connect to my pi througg ssh. But my problem is that i cannot always stablish a connection. When i use arp -a in cmd ...
5
votes
3answers
22k views

wpa-roam can only be used with the manual inet method

I'm trying to setup my new Wifi dongle I've bought from ModMyPi. Its working for DHCP but when I try to make it a static IP, I get this error when restarting it: wpa-roam can only be used with the ...
4
votes
1answer
6k views

SD card doesn't works after dd

I'm experiencing a strange effect. When I write a Raspbian image to an SD card using dd, the SD card becomes unusable. The Pi won't boot up and gparted shows an unknown file system on my Linux machine....
2
votes
1answer
418 views

start the wolfram framework in X11 mode

I connect to my raspi by ssh with X11 forwarding enabled. I can start xclock and it gets displayed to my X Display on a Fedora system, so no problem there. I then installed the wolfram package and ...
0
votes
1answer
1k views

Chrony 506 Cannot talk to daemon

I'm having trouble configuring chrony to sync the time between my raspberry pi and a desktop computer in an isolated network. My raspberry pi's chrony.config file looks like this: server master ...
0
votes
1answer
234 views

Sequential file naming

I'm using a Raspberry Pi to collect data (from USB-serial converter) and I'd like the recording files to be numbered in ascending order, to make it easy to find out which one is the latest when ...
1
vote
1answer
573 views

What are the Ground power ratings? - Connecting ground with motor controller

Basically, what are the ratings for the Ground GPIO pins? I guess nothing above 5 Volts and 1 Amp, but knowing what they are would be helpful (for a similar project I am planning to do when I have ...
24
votes
2answers
52k views

How can I start X11 only for a single application?

I am planning to use my RPi only for one application, which needs X server to be started. This application is chromium, which requires A LOT of resources already. I would like to start only the bare ...
9
votes
4answers
44k views

How to make a change to the routing table persist?

I am running raspbian and I can access anything on my lan through ethO but cannot ping an internet address. route -n says the following: Kernel IP routing table Destination Gateway ...
0
votes
0answers
273 views

Keyboard Problem: Raspi through TightVNCServer and Screen Sharing on OSX site

I watch my Raspi through Screen Sharing because I wanted to have a look at the new Mathematica Bundle. The problem is that I can't write [] brackets through the GUI, which sucks. I edited /etc/...
0
votes
1answer
3k views

Running Raspberry Pi with Locked SDHC Card?

I have a Raspberry Pi that is going to be put in situations where the intended user (a person with an unfortunate bout of brain damage) can't be expected to repair the device. I was working with it ...
5
votes
4answers
9k views

Raspberry Pi for Machine Learning

I’m a software engineer interested (and doing research) in machine learning. For some of my machine learning models, I need more computational power than which offered by a single computer. Presently,...
3
votes
1answer
244 views

Raspberry Pi Franken-charger: A Mini-B-to-Micro-B Conversion

So I go to the thrift shop around the corner, and I'm met with these two boxes in the electronics' section: I'm sifting through these one by one, tangle by tangle, searching for a power adapter that ...
1
vote
1answer
234 views

Resolve hostnames with arch linux

I have a Pi that runs hostapd and dhcpd on arch linux to create it's own land with the Pi's (routers) IP being 10.0.0.1. This uses the wlan0 interface and it only serves as a standalone router running ...
17
votes
3answers
67k views

How to tell how much memory is left on the SD card?

I have a raspberry pi, I've downloaded quite a few extras on it. I would like to be able to check how much memory I have left on my SD card. Is there a command that tells you memory available? Is ...
1
vote
2answers
3k views

How to use SOCKS proxy for Raspbmc

I need to access certain overseas content like BBC iPlayer via a SOCKS proxy server. My Linux virtual server in London is up and running and works perfectly with my other computers. I cannot work ...
2
votes
2answers
3k views

Raspberry hostname.local unable to resolve in MacBook Pro with Maverik

I setup my raspberry with hostname but I cannot reach with SSH or WEB browser by my MacBookPro (running under maverick). If i try by WIN 7 everything works! On raspberry I setup avahi. Running ...
0
votes
3answers
213 views

I want to start my Pi without logging in

I want to start my Raspberry Pi without logging in but I can't find 1:2345:respawn:/sbin/getty 115200 tty1 in sudo nano /etc/inittab. The closest I get to is: 1:2341:2345:respawn:/sbin/...
4
votes
5answers
5k views

PiFM not working for me

I followed the steps found here & consulted this site. But I just get complete silence on 100.1 or other frequencies. No sound at all. Please tell me what it means. I really want to see & use ...
4
votes
1answer
992 views

Respberry Pi fails to boot with custom kernel

I'm trying to cross compile my kernel with touchscreen enabled, however my Respberry Pi fails to boot with the custom kernel. I was trying to compile the kernel on my ubuntu 10.4 (x64) with different ...
1
vote
1answer
253 views

Can I get the Kodak DVC323 webcam to work?

I have an older webcam, a Kodak DVC323 Digital Video Camera, that I'm trying to get to work with the Raspberry Pi, running Raspian. It's rated 5V 0.5A. I see it is not on the list of verified ...
0
votes
2answers
252 views

HTTP header for raspbian

I was looking for a HTTP header (preferably written in C) for my WiFi application to control a device. I am using a miniature USB WiFi module to connected to Raspberry Pi model B running Raspbian ...
1
vote
1answer
466 views

NFS root, mount speed

I'm wondering what can I do to speed up booting from NFS server (nfs root). I'm using Arch and there are no problem in booting over network, but still, it needs ~2 minutes to start booting and then ...
1
vote
2answers
444 views

hdd mount for server

I succesfully installed owncloud on my raspberry pi, but I want to upload files to my hdd when I upload on owncloud. So I did this: cd /var/www/owncloud/config sudo nano config.php and I changed the ...
2
votes
1answer
6k views

Class 10 SD Card VS UHS-I class 10 SD for RasPlex

I'm currently running RasPlex on a 4GB SD card and the menu is very sluggish. RasPlex reccomends an 8GB card so I'm thinking of upgrading to see if that solves the issue. I think they recommend class ...
3
votes
2answers
2k views

Is using a powered hub with the Pi safe

I read recently (I don't remember exactly where) that you could power the Pi from a "cheaper" USB powered hub. I just tried this, and it works. On checking the Pi schematics, it seems the USB port ...
3
votes
2answers
9k views

How can I run gparted over ssh?

I'm SSHing into my RPi, with X forwarding enabled. I'm trying to run gparted, but it seems to fail for me. $ gksudo gparted ====================== libparted : 2.3 ====================== The program '...
3
votes
1answer
2k views

Detect if current is flowing [closed]

I have a circuit I am working on and I need to be able to detect if current is flowing through certain GPIO (breadboarding wires really), but I'm not totally sure how to go about it! Would I want to ...
2
votes
1answer
1k views

Testing bluetooth communication on RaspberryPi

I am a beginner at RaspberryPi programing so I hope the question doesn’t sound dumb. I would like to test a communication between two bluetooh modules in SPP mode. Is it possible to connect them both ...
2
votes
2answers
4k views

Controlling a servo with hardware PWM using wiringPi

I tried controlling the servo with softPwm using the wiringPi Library but this made the servo stutter. Therefore I want to use the hardware PWM pin on the Raspberry Pi (GPIO18) with the wiringPi ...
0
votes
1answer
2k views

Raspberry Pi Webcam Reset

I'm making a timelapse video with a Raspberry Pi and a Microsoft Lifecam HD-5000 webcam. Everything is working great except that I have to reset the camera every morning or I end up with totally ...
1
vote
5answers
1k views

Raspberry Pi Mobile Phone Control

Okay, so I had this idea where I could put a Raspberry Pi into my letterbox with a proximity sensor connected to its GPIO (all battery powered), and it could text me when I get post. I have done the ...

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