Tagged Questions

Raspbian is a Linux operating system designed for the Raspberry Pi and based on Debian for ARM processors. A stable release version has recently become available, and the Raspberry Pi Foundation are now recommending Raspbian (over Debian) as the standard distribution for the Raspberry Pi.

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Configure USB port as a network

I am trying to get my tablet serve as a screen with VNC connection. After few searches, they pointed me to include these lines to /etc/network/interfaces: iface usb0 inet static address 192.168.42.42 ...
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18 views

Rasperry pi cluster

I'm planning on building or making a raspberry pi cluster. Nothing too fancy just with 3 or 4 nodes. What kind of switch should I use? Thanks!
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RPI freezes after booting

Recently I bought a raspberry pi B+ and I am very new to it.I installed NOOBS rasbian OS on it every thing works fine. Now I want to build and install kernel image on it.So, for that I downloaded the ...
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1answer
14 views

ttyAMA0 disabled but still shows one boot message

I'm trying to use the UART for my own purposes. I'm using Raspbian I've edited cmdline.txt and inittab but I still get the one line message Uncompressing Linux... done, booting the kernel. How ...
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9 views

Raspbian in qemu in the same terminal that started qemu

I am trying to run an emulation of raspbian in quemu in a remote machine without a graphical desktop. The following command works like a charm when I run it on my Ubuntu computer. qemu-system-arm ...
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19 views

Can i setting sampling rate 2k in MCP3008 or python

Can i setting sampling rate 2k in MCP3008 or python. I think to do this a long time but i don't have no idea. please help, thanks.
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1answer
35 views

My Pi and external hard drive only connects occasionally (other linux machine can read it)

I want to attach a 2x2.5 external drive to my RPi (Raspbian, kernel release 3.12.32+), but I cannot get the RPi to be consistently accepted by the system. It sometimes works, but more often not. The ...
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37 views

24 bit recording in raspberry pi

I'm trying to record audio with 24 bit with 32k sample rate in raspberry pi. When I play the recorded file I'm getting glitches. I changed bit clock ratio to 48 (i.e., number of bits* number of ...
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1answer
32 views

How to prevent script from repeating on startup?

I have a small bash script which I run at each logon. It is run by adding its path to the end of /etc/profile. My problem is that the script (at the moment it's just a line with echo "running script" ...
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36 views

Java app won't start after updating

After updating my raspberry (Raspbian) and everything on it including java my java application won't start anymore, does anyone know what these crashlog mean and how to solve it or create a ...
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1answer
30 views

crontab versus /etc/cron.d

I tried crontab -e and the file that was edited is /tmp/crontab.vJdE7J/crontab. Is this correct? I read from http://www.devils-heaven.com/raspberry-pi-cron-jobs/ that I should be creating a schedule ...
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19 views

Mount error (112) : Host is down

I got this error message after an upgrade. Mount error (112) : Host is down Anybody know why ? My mount cmd worked before... Thanks for fast answer. My media center is down :(
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1answer
38 views

RPi compile under ubuntu

I am trying to compile Raspbian inside of Ubuntu by downloading them through the Git repository, but the tools.git never gets completely downloaded. I followed another article which insisted on ...
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30 views

How to scan for wifi devices from a Raspberry-Pi terminal [on hold]

I want scan and get the MAC-Id's of all wifi turned on devices from the terminal.I was able to do this with a bluetooth dongle but still confused on how to implement over wifi
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31 views

CUPS referencing old Gutenprint version

I am trying to get the new Gutenprint 5.2.10 driver to work with CUPS 2.0.0 in my Rasberry Pi, using Raspbian8. I'm still kind of new to the Linux environment so please bear with me if I use the wrong ...
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1answer
25 views

Monitoring Network Traffic

How would you go monitoring network traffic on a router using a raspberry pi. I have looked at the questions Network monitor by Process and Raspberry Pi as a network monitoring device but ...
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20 views

TSL2563 Raspberry Pi Kernel Module for I2C Light Sensor Device

On Raspberry Pi, I've built the tsl2563 module with the help of rpi-source ( https://github.com/notro/rpi-source/wiki ). I did a sudo modules_install and sudo depmod and then successfully modprobe the ...
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2answers
53 views

Update 40 pis at once

Is there away to update multiple raspberry pis at the same time from one centrale Ubuntu pc. The amount of pis is 40 and is there also away to update from one copy of the image on a central server so ...
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20 views

RPI with GPS and LCD

I have Raspberry PI with GPS module IM131227001 and I have bougth LCD1602 Add-on and I have GPIO HUB. How to display GPS coordinates on mentioned LCD display in real time, if it si possible with my ...
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1answer
34 views

RTL8192cu wifi Authentication request to the driver failed

The device is being picked up by my pi. I also checked to make sure the 8192cu module is being loaded by the kernel as well. But I simply cannot connect to my wifi. I have tried multiple methods. I ...
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1answer
56 views

Run a python script from terminal

i'm new to raspi. I try to run a python script from terminal (with typing not autostart when boot) Firstly, i directed the directory to my desired folder with cd /desireddirectory Then i try to run my ...
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55 views

How do I connect my raspberry pi to an app?

I've created an app on App Inventor 2, and have coded my RP, but I am wondering how I connect my RP to my app, so I can control it with my app. The code on my pi is to control a lighting system where ...
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21 views

Automatically change web page Chromium Kiosk [closed]

How can i automatically change the web page after X minutes Website 1 2 mins website 2 2 mins website 1 etc etc running chromium
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1answer
39 views

UART cannot send

UART on my pi cannot send data, I can receive data from another machine, but I cannot send any data using the 'tx' pin of UART. I also try to connect 'tx' and 'rx' on my pi, but still no data is sent ...
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18 views

Rendering Issues

Im currently trying to make a multi-purpose-screen for my raspberry pi that will run on my 1080p monitor. The problem is that the raspberry pi seems to be too slow to render the fading effect in the ...
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41 views

Deluge download speed drops down

I'm using Deluge torrent client and when I download anything the speed goes up to the maximum ~2.3 MB/sec. After a couple of seconds it starts dropping down till it reaches 0. After a couple of ...
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22 views

no external net connection

I've got raspbian on its latest stable version running and can access and ping my internal network, apt-get and ping 8.8.8.8 but anything else I ping such as bbc.co.uk just does nothing, doesn't even ...
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49 views

Boot config.txt is ignored

Problem The /boot/config.txt file is being ignored when the Raspberry Pi boots up. As such, overscan and overclocking settings are not taking effect. What I've tried Some reported that the line ...
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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 ...
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1answer
16 views

my RPi connt connect to the internet even it is connect to the network

as in the prev images the RPi is connected to the internal network and i can control it via ssh and it work well put it cant connect the net or ping as in the images what can i do ?? to fix ...
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1answer
29 views

Can't connect to Ethernet port on RPI

I have an Rasberry Pi B. I have copied Raspbian to SD card. I plugged RPI into TV and set it up. I enabled SSH at boot. I rebooted, and took it to my laptop. I connected the laptop and Pi via ...
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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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1answer
91 views

Raspberry Pi with USB DAC and ALSA audio not working

I finally got a USB DAC (HiFimeDIY Sabre DAC) for my Raspberry Pi (running on Raspbian Wheezy) today, but of course, just plugging it in doesn't do the trick. I've been messing around for quite some ...
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2answers
39 views

shell creation report boost::interprocess::bad_alloc error

Always after running for a while, process creation reports an error that seems link to a memory allocation error. I says seems because the process is forked and works. For instance forking a shell ...
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25 views

Lighttpd + Python FastCGI not cooperating

I have a Flask App on my Raspberry Pi, the structure is /home/pi/microblog/ app db_upgrade.py runp.py app.db flask runp-sqlite.fcgi babel.cfg killpython ...
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1answer
41 views

Why don't I get all available packets from apt?

I wanted recently to install profanity, a xmpp client, on my raspi. I ran a apt-get update, then a apt-get dist-upgrade, and tried to install the package. but it doesn't find it! But on this link: ...
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2answers
45 views

Can't format my Raspbian SD Card

I used my RPi for a long time and the OS is a mess. I want to do it from scratch and I want to use the SD Card I got along with the Raspberry with Raspbian pre-installed. I downloaded the image and ...
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22 views

Raspbian - Network-Manager 0.9.6 or newer?

I am using the RPi CLI only. I would like to use Network-Manager as I do on my ubuntu system (v0.9.8). I have installed NM on my dev RPi (via apt-get), but looks like 0.9.4 is latest available. Is ...
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1answer
75 views

TP link wn725n Wifi getting disconnected on Raspberry Pi B+

I have tp link wn725n usb Wifi. After sometime it gets disconnected from wifi. The driver i am using is 8188eu after following the tutorial at ...
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70 views

Can't get PyAudio working with Raspbian

I've been planning an audio project with my raspberry pi and have played with some ideas using PyAudio on my mac with no trouble. I just recently set up my RPi and am having some trouble running ...
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1answer
42 views

Raspberry Pi News Ticker

I have seen tickers used with the raspberry pi, but they all output to a LCD screen and I would like to output to a TV via HDMI. I would like the ticker to use a RSS feed, and overlay at the bottom ...
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1answer
55 views

Raspeberry pi b+ wifi connection

I've got Raspberry pi B+. I've loaded raspberry wheezy image into MMC card. I've got wifi router.I want to connect Pi B+ board with wifi router without using wifi USB adapter. Is it possible?If yes ...
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0answers
50 views

Performance Java SWING on Raspberry PI

I have partially written my POS java GUI which I would like to run on my raspberry Pi. I am now testing the interface on the pi in combination with an ELO touchscreen and I have experienced a slow ...
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1answer
52 views

How do I monitor the temperature ever 3 seconds without entering new commands?

I just bought a heat sink kit for my pi and I'm using Raspbian and would like to monitor the temperature continuously every 3 seconds via SSH while I perform tasks on the pi so that I don't have to ...
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2answers
150 views

Raspberry pi B+ first boot

I got Raspberry pi B+ and I tried to boot by using NOOBS v1.3.10 and RASPBIAN Debian Wheezy Version:September 2014. Then I got two different problems. These are my component information, ...
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1answer
41 views

Can't make change to “route” stick

I have this exact problem: "connect: Network is unreachable" on a working wlan0 (connected) interface So, I'm able to use the LAN but i can't reach the Internet. And the solution in the ...
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1answer
34 views

How can I detect if specific USB port is being used, and then command an action?

I'm very new to Raspberry Pi/Linux/Python world and I'm trying to identify one of the ports on my RPi, so if someone for example, connects a USB Flash drive (or anything) to that specific port an ...
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1answer
42 views

Fail to print using python-cups: “client-error-document-access-error”

I am trying to Print to USB HP printer through python. I was successfull in printing a text file using Ctrl-P command through gui after setting up CUPS using the WEB method. Now I am trying to print ...
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1answer
23 views

Recovering a borked /boot partition

After a apt-get update/apt-get upgrade ended with errors, my system became unusable. I was able to determine that the /boot partition was missing several files (useful ones, like kernel.img...) I ...
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25 views

Get connected(paired) device on bluetooth

Is there anyway in command lines or even python to get the Paired device at the exact moment? I've googled some of them but got nothing... I know there are commands to list all active devices nearby, ...