Tagged Questions

Linux is a high-profile computer operating system. The Raspberry Pi can run one of a number of Linux distributions, the most pupular being Debian and Arch Linux.

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1
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1answer
27 views

rPi B+ Arch Linux running Java application

My customer's java app (.jar) file runs on rPi B+ with arch linux installed. Now, I've also enabled hardware watchdog timer which purpose is to reboot rPi when java app hangs. Now, I've configured the ...
0
votes
1answer
38 views

Two GPIO-based TFT screens?

Is it possible to connect two GPIO screens to the Raspberry Pi at once? Ideally, one with touchscreen capabilities and one without. If it's not possible, could both a GPIO screen and a small HDMI ...
2
votes
0answers
24 views

Dynamic compression / limiter of MP3 audio playback?

I often listen to audio plays (single or multiple MP3 files) before going to sleep but then wake up again when there is a much louder scene or the end theme. I can't just turn the volume down in ...
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0answers
19 views

PIGPIO: Can child process use the parent initilized pigpio library?

I have a parent process (which is a basic tcp server). This process calls gpioInitialise() before forking a child process which polls gpio pins for input. After forking the child, the parent process ...
0
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0answers
29 views

Fake bcm2835 library

I'm developing something in C++ that needs to use SPI communication, The fastest way I've seen is using the bcm2835 library for RaspberryPi. I'm doing all the developing process on my pc and cross ...
0
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0answers
37 views

PJSIP cross compilation linker error unresolvable relocation

I'm trying to write a very small, very simple project using PJSIP. But I'm already stuck on the first step, incorporating PJSIP in my project. I'm trying to build and compile on a Ubuntu 14.04 system ...
2
votes
0answers
11 views

what is the use of this patch 'ASOC: dapm: add code to configure dai link parameters from “rpi-3.12.y” '?

Recently i am working on the raspberry pi kernel rpi-3.12.y When i am using the latest image and modules of it, i am getting an error while rebooting or halting. The error message is like unable ...
1
vote
2answers
79 views

How do I fix this 'transmission-daemon: command not found' error?

I set up a brand new Raspbmc and installed transmission-daemon on it. I was able to stop it by issuing a sudo /etc/init.d/transmission-daemon stop, after which I proceed to make some changes to ...
0
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0answers
33 views

Problem with debconf when trying to upgrade

I have problem with upgrade my system. When i used command: sudo apt-get upgrade I get an error: Use of uninitialized value in concatenation (.) or string at ...
0
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0answers
37 views

Is it possible to run Pantheon on ArchLinux with bearable performance? (B+)

I received my Raspberry Pi B+ in the mail today and Pantheon is one of my favourite desktop environments. My question is if it possible to run it with decent performance? By requirements you could but ...
1
vote
2answers
64 views

Is it possible to make a fully automatic installation of raspbian?

My problem is : I want actually to make the sd card bootable directly to raspbian and when booting from it for the first time I don't need to select configuration options. I searched a lot but I am ...
0
votes
1answer
46 views

Is raspberry Pi Stable enough

I want to implement a SMS server which will be receiving the SMS messages sent from my devices all around the country. May be about 5 SMS per minute. I want to know if the RBP would be stable enough ...
0
votes
1answer
45 views

Help with Shell Scripts, creating a list of options for users [closed]

I am trying to teach myself to write Shell Scripts on my Raspberry Pi, but I am struggling to make a menu where a user can choose from these different options: display a list of current users ...
1
vote
0answers
53 views

WiPi not going into monitor mode

Ok so on my raspberry pi using the WiPi I am trying to set it to monitor mode using. Sudo ifconfig wlan0 down Sudo iwconfig wlan0 mode monitor But it says SET failed on device wlan0; Device or ...
1
vote
1answer
70 views

What means T in ls command

I was wondering what it means the letter T on the following results. $ ls -l /dev/mem crw-r----T 1 root kmem 1, 1 Jan 1 1970 /dev/mem I have change the permissions and now I don't know how ...
0
votes
1answer
213 views

OpenVPN as a background process [closed]

i would like to run the OpenVPN service in the background. I have a script like this, that basically starts the Netherlands VPN of privateinternetaccess. vpn.sh sudo openvpn --config ...
1
vote
1answer
199 views

i have connected webcam to raspberry pi and now i want to get mpeg stream from webcam to my Laptop ?

i have used creative webcam and connected to raspberry pi for the purpose to receive mpeg real-time stream from that webcam to my laptop or on android cell-phone but when one of my classmate installed ...
0
votes
0answers
397 views

Xlib: extension “RANDR” missing on display “:1.0”

I'm trying to run openvibe-designer on my raspberry pie over vnc. Currently I am using Xvnc version TightVNC-1.3.9. All other applications that I've launched over vnc have worked. I only get this ...
0
votes
0answers
45 views

Share internet connection from HSDPA modem using RPi?

I need to deploy dozens of Raspberry Pi in different locations. I need internet connection for each RPi device. There could be some points, where 2 or more RPi devices will be deployed close to each ...
1
vote
0answers
33 views

Processing keystroke input on startup

I am currently working on a project where I am using a Raspberry Pi (running Raspian Wheezy) to handle authentication to a locked door. I have a usb numeric keyboard plugged into my pi, and I have ...
0
votes
0answers
43 views

Rs232 - Why do I read what I just wrote?

I have connected my RPi to my laptop via an RS232 to TTL adapter and a RS232 to USB cable and tried to write to it in C. On my laptop everything worked just fine. But when I move to the production ...
0
votes
1answer
198 views

Wolfson audio card not working after rpi-update

Just used rpi-update to update the Pi and things went bad. Previously, was using the base Raspbian image with Wolfson drivers and that worked well. Suddenly, nothing. Alsamixer doesn't show anything. ...
1
vote
1answer
159 views

Configure a Raspberry Pi for wifi from an access point by USB wifi dongle

I'd like to be able to configure a Raspberry Pi to work as a wifi access point that loads an interface where users can choose the WiFi network to connect to. I've read the guides on how to make an ...
0
votes
0answers
56 views

fedora remix (pidora). error install xl2tpd

yum install xl2tpd Loaded plugins: langpacks, refresh-packagekit Resolving Dependencies --> Running transaction check ---> Package xl2tpd.armv6hl 0:1.3.6-1.fc20 will be installed --> ...
0
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0answers
385 views

5 Ghz Wifi on Raspberry Pi

I have already configured by Raspberry Pi to be a wireless access point using the tutorial here: ...
1
vote
1answer
173 views

Mobile to Raspberry PI audio streaming

I have trying to use the Raspberry PI + Wolfson to be an audio decoder and player. It would be the receiver for control/audio data for a specialized sound system. The PI would receive TCP packets from ...
0
votes
2answers
110 views

Raspberry unbootable after unexpected shutdown

I have a raspberry Pi, Model B. I installed Raspbian on the SD card and I would like to use it as a SVN server. The problem is that when it shuts down unexpectedly (i.e. there is a blackout, or DC ...
0
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0answers
36 views

Kali linux Booting Error [duplicate]

I cant seem to boot to the desktop. Every time I type "startx" I just see my mouse and nothing else on the screen, please help!
0
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0answers
33 views

booting error kali linux! [duplicate]

I recently got kali linux for my raspberry pi. When I was booting it today, I logged in, went to the command line and typed "startx". After a few seconds, only my mouse appeared and I can move it, but ...
0
votes
1answer
26 views

AF_BUS on Raspbian

Dear RPI SO Community :), I want to try the AF_BUS Patch but I don't get what I need exactly for it. AF_BUS optimizes the performance of D-Bus in latency and throughput and I am working on a ...
1
vote
1answer
55 views

Auto Connect to Public Network and then “Accept TOS”

I have a video installation in a Museum for this summer. Currently there is a USB drive in the Pi that has an auto-login / bash.rc file to automatically play *.mp4 files in Omxplayer in order then ...
0
votes
1answer
29 views

Fresh Raspberry Pi with Ethernet only. How To?

I'm already spent a 2 hours for such How-To. I'm looking for instruction how to setup anything, actually Linux(Ubuntu/Debian) from my Host(Ubuntu) to my Fresh Raspberry Pi. I've bought it just a ...
0
votes
1answer
62 views

How much normal Linux can I do with OpenELEC?

I was thinking of using my RaspPI Rev B with some server type things, not too much CPU. It's the one computer in my house which is always on (everything else I have is a laptop or aggressively ...
2
votes
2answers
282 views

RedHat distro on RPI?

Looking around for a RedHat (and the like) distro to run on the RaspberryPi (512MB RAM version), I came across RedSleeve, which has done the job of porting RH to the RPI architecture. They also ...
0
votes
0answers
67 views

Refresh Midori when loading error

I've made a script that "refreshes" a page every x seconds, editable via a webbased backend. The script is in javascript. Now, when that particular moment the page reloads, the internet or network ...
0
votes
0answers
48 views

Run script on boot [closed]

Is there a way to run a .sh script ONCE when I boot? I know about the init.d folders, but there seems to be some weird special layout you must use for scripts there. I only want to run two quick ...
0
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0answers
87 views

Install tightvnc in arch linux raspberry pi

How do I install the tightvnc in the archlinux os in raspberry pi? Is the procedures and commands different? Thank You
0
votes
1answer
134 views

Writing an XBMC addon: how do I add a torrent to my home PC over LAN from RaspBMC?

I'm writing an XBMC addon using the xbmcswift2 framework. Building and navigating the GUI was fairly easy. I also wrote a scraper for vodo.net which will be displaying the available movies in the XBMC ...
1
vote
2answers
547 views

soft-float debian wheezy and debian wheezy

I've been instructed to load ubuntu on a raspberry file. I was told "The Ubuntu image for the Raspberry pi called ‘Soft-float Debian wheezy' Is that different from the Debian Wheezy I see on the ...
0
votes
0answers
176 views

Connecting the raspberry pi to internet via WIFI

I am trying to connect my pi I tried many tutorials still no internet access these steps are already done pi@raspberrypi ~ $ sudo iwconfig wlan0 essid My_routers_ID pi@raspberrypi ~ $ sudo iwconfig ...
2
votes
3answers
1k views

What programming languages does the Raspberry Pi support? [closed]

As of now, I do not own a Raspberry Pi, but I really want to buy one. I really want to know what programming languages it supports. What programming lanaguages does it support, and does it support ...
0
votes
1answer
92 views

Raspberry pi as CAMAC controller

Has anyone ever tried using raspberry pi as a digital input/output card for high frequency (more than 100 MHz) digital signal? I am thinking about building a CAMAC controller, the interface to PC (I ...
0
votes
1answer
60 views

Setting up Raspberry Pi and want to install Linux OS

I just recently discovered Raspberry Pi. I just want to know, if I want to install Linux on the Raspberry Pi, do I need to download and extract the NOOBS file from a Linux PC? Or Can I just use ...
1
vote
1answer
99 views

Linux Script to login to Raspberry pi and run some scripts inside raspberry pi

This is my scenario, We have some sensors on different sites, these sensors are connected with some equipment having SIM cards in it to allow the internet connection. On the other hand, we have a ...
0
votes
3answers
187 views

can I play Day Z on My Raspberry Pi?

I know I can play Minecraft on my raspberry pi, but Is Day Z possible or would I need a gaming computer?, though I have a tight wallet ...
0
votes
0answers
174 views

how to interface raspberry pi and plc

am doing a project on controlling the plc by using raspberry pi. any one please suggest some sample coding and tutorial regarding this project. am already finished a coding part to connect a control ...
0
votes
1answer
364 views

apt-get “cannot locate the package”

I was following a tutorial online so I can install a USB DisplayLink monitor, and it told me to type: sudo apt-get install git-core gcc-4.6-arm-linux-gnueabi I tried that, and it says it ...
1
vote
1answer
91 views

Is reboot command on Raspian (Debian) reliable enough?

Is running "reboot" command enough to reliably restart the Raspian (Debian) system if filesystem/hdd is ok? Will it work when there is an infinite loop in stop() function of rc script or if there are ...
2
votes
1answer
263 views

print a character in the usb-serial port

Hello everybody and thank you for all the answers that you give me to solve this problems. Someone said me: This code print a word that I choose in the screen, but How to send or print an ASCII ...
1
vote
1answer
87 views

Transition to Embedded Linux like Pi from Microcontrollers [closed]

I am currently familiar with design/programming custom embedded systems using PIC Micro-controllers with various peripherals like I2C, SPI Flash, UART,ADC,etc with some additional analog processing ...